SB2023121429 - Multiple vulnerabilities in Logging Subsystem 5.8 for Red Hat OpenShift



SB2023121429 - Multiple vulnerabilities in Logging Subsystem 5.8 for Red Hat OpenShift

Published: December 14, 2023 Updated: January 4, 2026

Security Bulletin ID SB2023121429
Severity
High
Patch available
YES
Number of vulnerabilities 76
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 9% Medium 29% Low 62%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 76 secuirty vulnerabilities.


1) Buffer overflow (CVE-ID: CVE-2023-22745)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in "Tss2_RC_SetHandler" and "Tss2_RC_Decode". A remote attacker can trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


2) Input validation error (CVE-ID: CVE-2023-29499)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A remote attacker can pass specially crafted input to the application and perform a denial of service (DoS) attack.


3) Buffer overflow (CVE-ID: CVE-2023-29491)

The vulnerability allows a local user to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error when processing malformed data in a terminfo database file. A local user can trigger memory corruption and execute arbitrary code on the target system.



4) HTTP response splitting (CVE-ID: CVE-2023-27522)

The vulnerability allows a remote attacker to perform HTTP splitting attacks.

The vulnerability exists due to software does not correclty process CRLF character sequences in mod_proxy_uwsgi. A remote attacker can send specially crafted request containing CRLF sequence and make the application to send a split HTTP response.

Successful exploitation of the vulnerability may allow an attacker perform cache poisoning attack.


5) Buffer overflow (CVE-ID: CVE-2023-26966)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the uv_encode() function. A remote attacker can pass a specially crafted TIFF file to the application, trigger memory corruption and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


6) Heap-based buffer overflow (CVE-ID: CVE-2023-26965)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the loadImage() function in tools/tiffcrop.c. A remote attacker can pass specially crafted TIFF file to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


7) Double Free (CVE-ID: CVE-2023-26545)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a double free in net/mpls/af_mpls.c during the renaming of a device. A local user can trigger a double free error and execute arbitrary code with elevated privileges.


8) Information disclosure (CVE-ID: CVE-2023-4641)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to an error in gpasswd(1), which fails to clean memory properly. When asking for a new password, shadow-utils asks the password twice. If the password fails on the second attempt, shadow-utils fails in cleaning the buffer used to store the first entry. A local user with enough access can retrieve the password from the memory.


9) Improper Certificate Validation (CVE-ID: CVE-2023-31486)

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to missing verification of the TLS certificate. A remote attacker can perform MitM attack and trick the application into downloading a malicious file.

10) Stack-based buffer overflow (CVE-ID: CVE-2023-4273)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error in the implementation of the file name reconstruction function in the exFAT driver in Linux kernel. A local user can trigger a stack overflow and execute arbitrary code with elevated privileges.


11) Use-after-free (CVE-ID: CVE-2023-4208)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the the cls_u32 component in Linux kernel packet scheduler. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


12) Use-after-free (CVE-ID: CVE-2023-4207)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the the cls_fw component in Linux kernel packet scheduler. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


13) Use-after-free (CVE-ID: CVE-2023-4206)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the the cls_route component in Linux kernel packet scheduler. A local user can trigger a use-after-free error and execute arbitrary code on the system.


14) Type Confusion (CVE-ID: CVE-2023-4194)

The vulnerability allows a local user to bypass implemented security restrictions.

The vulnerability exists due to a type confusion error in TUN/TAP functionality. A local user can bypass network filters and gain unauthorized access to some resources.

The vulnerability exists due to incomplete fix for #VU72742 (CVE-2023-1076).


15) Race condition (CVE-ID: CVE-2023-4155)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a race condition in KVM AMD Secure Encrypted Virtualization (SEV) in Linux kernel. A local user can exploit the race and escalate privileges on the system.


16) Use-after-free (CVE-ID: CVE-2023-4128)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within net/sched/cls_fw.c in classifiers (cls_fw, cls_u32, and cls_route) in the Linux Kernel. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


17) Input validation error (CVE-ID: CVE-2023-30456)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of consistency for for CR0 and CR4 in arch/x86/kvm/vmx/nested.c in the Linux kernel. A local user can execute arbitrary code with elevated privileges.


18) Heap-based buffer overflow (CVE-ID: CVE-2023-32324)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the format_log_line() function cups/string.c when the "loglevel" is set to "DEBUG". A remote attacker can pass specially crafted data to the daemon, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


19) Out-of-bounds read (CVE-ID: CVE-2023-3773)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition in IP framework for transforming packets (XFRM subsystem). A local user with CAP_NET_ADMIN privileges can cause a 4 byte out-of-bounds read of XFRMA_MTIMER_THRESH when parsing netlink attributes and gain access to sensitive information.


20) Access of Uninitialized Pointer (CVE-ID: CVE-2023-36054)

The vulnerability allows a remote user to perform a denial of service (DoS) attack.

The vulnerability exists due to the  _xdr_kadm5_principal_ent_rec() function in lib/kadm5/kadm_rpc_xdr.c does not validate the relationship between n_key_data and the key_data array count and frees an uninitialized pointer. A remote user can send a specially crafted request to the application and perform a denial of service (DoS) attack.


21) Resource exhaustion (CVE-ID: CVE-2023-44487)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to improperly control of consumption for internal resources when handling HTTP/2 requests with compressed HEADERS frames. A remote attacker can send a sequence of compressed HEADERS frames followed by RST_STREAM frames and perform a denial of service (DoS) attack, a.k.a. "Rapid Reset".

Note, the vulnerability is being actively exploited in the wild.


22) Double Free (CVE-ID: CVE-2023-39975)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the free_req_info(). A remote attacker send a specially crafted request to trigger a double free error and perform a denial of service (DoS) attack.


23) Input validation error (CVE-ID: CVE-2023-39191)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to insufficient validation of user-supplied input in the eBPF subsystem in the Linux kernel. A local user with CAP_BPF capability can execute arbitrary code with elevated privileges.


24) External control of file name or path (CVE-ID: CVE-2023-38546)

The vulnerability allows an attacker to inject arbitrary cookies into request.

The vulnerability exists due to the way cookies are handled by libcurl. If a transfer has cookies enabled when the handle is duplicated, the cookie-enable state is also cloned - but without cloning the actual cookies. If the source handle did not read any cookies from a specific file on disk, the cloned version of the handle would instead store the file name as none (using the four ASCII letters, no quotes).

Subsequent use of the cloned handle that does not explicitly set a source to load cookies from would then inadvertently load cookies from a file named none - if such a file exists and is readable in the current directory of the program using libcurl.

25) Heap-based buffer overflow (CVE-ID: CVE-2023-38545)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in the SOCKS5 proxy handshake. A remote attacker can trick the victim to visit a malicious website, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system but requires that SOCKS5 proxy is used and that SOCKS5 handshake is slow (e.g. under heavy load or DoS attack).


26) Infinite loop (CVE-ID: CVE-2023-38197)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to infinite loop when handling recursive expansions. A remote attacker can consume all available system resources and cause denial of service conditions.


27) Buffer overflow (CVE-ID: CVE-2023-37369)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error when processing XML content in QXmlStreamReader. A remote attacker can pass specially crafted XML input to the application, trigger memory corruption and perform a denial of service (DoS) attack.


28) Improper Certificate Validation (CVE-ID: CVE-2023-34410)

The vulnerability allows a remote attacker to perform MitM attack.

The vulnerability exists due to improper validation of TLS certificate chain, where application does not always consider whether the root of a chain is a configured CA certificate. A remote attacker can perform MitM attack.


29) Division by zero (CVE-ID: CVE-2023-32573)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a divide by zero error in src/svg/qsvghandler.cpp. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


30) Use-after-free (CVE-ID: CVE-2023-34241)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error in cupsdAcceptClient(). A remote attacker can cause a denial of service condition on the target system.


31) Double free (CVE-ID: CVE-2023-33952)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error when handling vmw_buffer_object objects within the vmw_user_bo_lookup() function in drivers/gpu/drm/vmwgfx/vmwgfx_bo.c. A local user can trigger a double free error and execute arbitrary code on the target system with elevated privileges.



32) Race condition (CVE-ID: CVE-2023-33951)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to a race condition when handling GEM objects within the vmw_user_bo_lookup() function in drivers/gpu/drm/vmwgfx/vmwgfx_bo.c. A local user can exploit the race and gain unauthorized access to sensitive information on the system.


33) Out-of-bounds read (CVE-ID: CVE-2023-33285)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to buffer over-read via a crafted reply from a DNS server within the QDnsLookup() function in src/network/kernel/qdnslookup_unix.cpp. A remote attacker can perform a denial of service attack.


34) Race condition (CVE-ID: CVE-2023-33203)

The vulnerability allows an attacker to escalate privileges on the system.

The vulnerability exists due to a race condition in drivers/net/ethernet/qualcomm/emac/emac.c. An attacker with physical access to the system can exploit the race by unplugging an emac based device and execute arbitrary code with elevated privileges.


35) Resource exhaustion (CVE-ID: CVE-2023-32665)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


36) Resource exhaustion (CVE-ID: CVE-2023-32611)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to application does not properly control consumption of internal resources within the g_variant_byteswap() function. A remote attacker can trigger resource exhaustion and perform a denial of service (DoS) attack.


37) Out-of-bounds write (CVE-ID: CVE-2023-4016)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a boundary error when processing untrusted input. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.


38) NULL pointer dereference (CVE-ID: CVE-2023-3772)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the xfrm_update_ae_params() function in the IP framework for transforming packets (XFRM subsystem). A local user with CAP_NET_ADMIN privileges can perform a denial of service (DoS) attack.


39) Cleartext storage of sensitive information (CVE-ID: CVE-2023-38037)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to software uses a temporary file for storing unencrypted files. A local user can gain access to sensitive information.


40) NULL pointer dereference (CVE-ID: CVE-2022-4285)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error when parsing an ELF file containing corrupt symbol version information. A remote attacker can pass a specially crafted file to the application and perform a denial of service (DoS) attack.


41) Buffer overflow (CVE-ID: CVE-2023-1073)

The vulnerability allows an attacker to compromise the affected system.

The vulnerability exists due to a boundary error in the Linux kernel human interface device (HID) subsystem. An attacker with physical access to the system can insert in a specific way malicious USB device, trigger memory corruption and execute arbitrary code.


42) Memory leak (CVE-ID: CVE-2023-0597)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to memory leak within the Linux kernel cpu_entry_area mapping of X86 CPU data. A local user can gain access to sensitive information.


43) Access of Uninitialized Pointer (CVE-ID: CVE-2022-42895)

The vulnerability allows an attacker to gain access to sensitive information.

The vulnerability exists due to unauthorized access of uninitialized pointer within the l2cap_parse_conf_req() function in net/bluetooth/l2cap_core.c. An attacker with physical proximity to the affected device can gain access to sensitive information.


44) Out-of-bounds read (CVE-ID: CVE-2022-41862)

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition. A remote attacker can send an unterminated string during the establishment of Kerberos transport encryption, trigger an out-of-bounds read error and read contents of memory on the system.


45) Information exposure through microarchitectural state after transient execution (CVE-ID: CVE-2022-40982)

The vulnerability allows a malicious guest to escalate privileges on the system.

The vulnerability exists due to the way data is shared between threads whereby the AVX GATHER instructions on Intel processors can forward the content of stale vector registers to dependent instructions. A malicious guest can infer data from different contexts on the same core and execute arbitrary code with elevated privileges.


46) Use-after-free (CVE-ID: CVE-2022-40133)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the vmw_execbuf_tie_context() function in drivers/gpu/vmxgfx/vmxgfx_execbuf.c. A local user can run a specially crafted program on the system and perform a denial of service (DoS) attack.


47) Use-after-free (CVE-ID: CVE-2022-38457)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the vmw_cmd_res_check() function in drivers/gpu/vmxgfx/vmxgfx_execbuf.c. A local user can trigger a use-after-free error and crash the system.


48) Inclusion of Sensitive Information in Log Files (CVE-ID: CVE-2022-3594)

The vulnerability allows a local user to gain access to sensitive information.

The vulnerability exists due to the intr_callback() function in drivers/net/usb/r8152.c can be forced to include excessive data info the log files. A local user can read the log files and gain access to sensitive data.

Note, the vulnerability can be triggered remotely.


49) Type Confusion (CVE-ID: CVE-2023-1075)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a type confusion error within the tls_is_tx_ready() function in the net/tls stack of the Linux Kernel. A local user can trigger a type confusion error and execute arbitrary code with elevated privileges.


50) Buffer overflow (CVE-ID: CVE-2022-3565)

The vulnerability allows an attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the del_timer() function in drivers/isdn/mISDN/l1oip_core.c in the Bluetooth component. An attacker with physical proximity to device can trigger memory corruption and execute arbitrary code on the target system.



51) Use-after-free (CVE-ID: CVE-2022-3523)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error when in mm/memory.c in Linux kernel. A local user can trigger a use-after-free error and perform a denial of service (DoS) attack.


52) Integer overflow (CVE-ID: CVE-2021-43618)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to integer overflow in mpz/inp_raw.c. A remote attacker can pass specially crafted data to the application, trigger integer overflow and cause a denial of service condition on the target system.


53) Buffer overflow (CVE-ID: CVE-2021-3826)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within the dlang_lname() function in d-demangle.c in libiberty. A local user can perform a denial of service (DoS) attack via a crafted mangled symbol.


54) Reachable Assertion (CVE-ID: CVE-2021-3502)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a reachable assertion within the avahi_s_host_name_resolver_start function. A local user can pass specially crafted input to the application and perform a denial of service (DoS) attack.


55) Infinite loop (CVE-ID: CVE-2021-3468)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to event used to signal the termination of the client connection on the avahi Unix socket is not correctly handled in the client_work() function. A local user can consume all available system resources and cause denial of service conditions.


56) Path traversal (CVE-ID: CVE-2007-4559)

The vulnerability allows a remote attacker to compromise the affected system.

The vulnerability exists due to improper validation of filenames in the tarfile module in Python. A remote attacker can create a specially crafted archive with symbolic links inside or filenames that contain directory traversal characters (e.g. "..") and overwrite arbitrary files on the system.


57) Memory leak (CVE-ID: CVE-2023-1074)

The vulnerability allows a local user to perform DoS attack on the target system.

The vulnerability exists due memory leak in Linux kernel Stream Control Transmission Protocol. A local user can start a malicious network service and then connect to remotely, forcing the kernel to leak memory.


58) Type Confusion (CVE-ID: CVE-2023-1076)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a type confusion error during initialization of TUN/TAP sockets. A local user can trigger a type confusion error and execute arbitrary code with elevated privileges.


59) Use-after-free (CVE-ID: CVE-2023-3609)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the the Linux kernel net/sched: cls_u32 component. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.


60) Out-of-bounds write (CVE-ID: CVE-2023-3138)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary error within src/InitExt.c in libX11. A remote attacker can send specially crafted data to the server, trigger an out-of-bounds write and perform a denial of service (DoS) attack.


61) Memory leak (CVE-ID: CVE-2023-3576)

The vulnerability allows a remote attacker to perform DoS attack on the target system.

The vulnerability exists due memory leak in tools/tiffcrop.c when handling TIFF files. A remote attacker can force the application to leak memory and perform denial of service attack.


62) NULL pointer dereference (CVE-ID: CVE-2023-3358)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error in the Linux kernel's Integrated Sensor Hub (ISH) driver. A local user and perform a denial of service (DoS) attack.


63) NULL pointer dereference (CVE-ID: CVE-2023-3316)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the TIFFClose() function. A remote attacker can pass specially TIFf file to the application and perform a denial of service (DoS) attack.


64) Out-of-bounds read (CVE-ID: CVE-2023-3268)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to a boundary condition within the relay_file_read_start_pos() function in kernel/relay.c in the relayfs. A local user can trigger an out-of-bounds read error and read contents of memory on the system or crash the kernel.


65) NULL pointer dereference (CVE-ID: CVE-2023-3212)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the gfs2 file system in the Linux kernel. A local user can perform a denial of service (DoS) attack.


66) Incorrect calculation (CVE-ID: CVE-2023-3161)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to incorrect calculation in the Framebuffer Console (fbcon) in the Linux kernel. A local user can perform a denial of service (DoS) attack.


67) Use-after-free (CVE-ID: CVE-2023-3141)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the r592_remove() function of drivers/memstick/host/r592.c in media access in the Linux kernel. A local user can trigger a use-after-free error and escalate privileges on the system.


68) NULL pointer dereference (CVE-ID: CVE-2023-2731)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a NULL pointer dereference error within the LZWDecode() function in the libtiff/tif_lzw.c. A remote attacker can pass specially crafted data to the application and perform a denial of service (DoS) attack.


69) Use-after-free (CVE-ID: CVE-2023-1079)

The vulnerability allows an attacker to compromise the vulnerable system.

The vulnerability exists due to a use-after-free error within the asus_kbd_backlight_set() function when plugging in a malicious USB device. An attacker with physical access to the system can inject a malicious USB device, trigger a use-after-free error and execute arbitrary code.



70) Use-after-free (CVE-ID: CVE-2023-1989)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the btsdio_remove() function in driversluetoothtsdio.c. A local user can trigger a use-after-free error and escalate privileges on the system.


71) Input validation error (CVE-ID: CVE-2023-1981)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to insufficient validation of user-supplied input. A local user can initiate a DBUS call to the daemon and perform a denial of service (DoS) attack.


72) Use-after-free (CVE-ID: CVE-2023-1855)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the xgene_hwmon_remove() function in drivers/hwmon/xgene-hwmon.c in the Hardware Monitoring Linux Kernel Driver (xgene-hwmon). A local user can trigger a use-after-free error and execute arbitrary code on the system.


73) Use-after-free (CVE-ID: CVE-2023-1652)

The vulnerability allows a local user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the nfsd4_ssc_setup_dul() function in fs/nfsd/nfs4proc.c. A local user can trigger a use-after-free error and execute arbitrary code with elevated privileges.



74) Use-after-free (CVE-ID: CVE-2023-1252)

The vulnerability allows a local authenticated user to escalate privileges on the system.

The vulnerability exists due to a use-after-free error within the Linux kernel’s Ext4 File System in how a user triggers several file operations simultaneously with the overlay FS usage. A local authenticated user can trigger a use-after-free error and escalate privileges on the system.


75) Use-after-free (CVE-ID: CVE-2023-1249)

The vulnerability allows a local user to perform a denial of service (DoS) attack.

The vulnerability exists due to a use-after-free error within the core dump subsystem in Linux kernel. A local user can trigger a use-after-free error and crash the kernel.


76) Resource exhaustion (CVE-ID: CVE-2023-1206)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a hash collision flaw in the IPv6 connection lookup table in the Linux kernel’s IPv6 functionality when an attacker makes a new kind of SYN flood attack. A remote attacker can increase the CPU usage of the server that accepts IPV6 connections up to 95%.


Remediation

Install update from vendor's website.