SB2022120140 - SUSE update for the Linux Kernel
Published: December 1, 2022
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 17 secuirty vulnerabilities.
1) Improper access control (CVE-ID: CVE-2021-4037)
The vulnerability allows a local user to gain unauthorized access to otherwise restricted functionality.
The vulnerability exists due to improper access restrictions in the fs/inode.c:inode_init_owner() function logic of the Linux kernel. A local user can create files for the XFS file-system with an unintended group ownership and with group execution and SGID permission bits set to bypass implemented security restrictions and gain unauthorized access to the application.
2) NULL pointer dereference (CVE-ID: CVE-2022-2153)
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 KVM when attempting to set a SynIC IRQ. A local user on the host can issue specific ioctl calls, causing a denial of service.
3) Memory leak (CVE-ID: CVE-2022-28748)
The vulnerability allows an attacker to gain access to sensitive information.
The vulnerability exists due memory leak when working with ax88179_178a devices. An attacker with physical access to the system can inject a malicious USB-drive and remotely obtain data from kernel memory.
4) Out-of-bounds write (CVE-ID: CVE-2022-2964)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the ASIX AX88179_178A-based USB 2.0/3.0 Gigabit Ethernet Devices driver in Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
5) Race condition (CVE-ID: CVE-2022-3521)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a race condition within the kcm_tx_work() function in net/kcm/kcmsock.c in Linux kernel. A local user can exploit the race and gain unauthorized access to sensitive information and escalate privileges on the system.
6) Memory leak (CVE-ID: CVE-2022-3524)
The vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak within the ipv6_renew_options() function when retrieving a new IPv6 address from a malicious DHCP server. A remote attacker can force the system to leak memory and perform denial of service attack.
7) Memory leak (CVE-ID: CVE-2022-3542)
The vulnerability allows a local user to perform DoS attack on the target system.
The vulnerability exists due memory leak within the bnx2x_tpa_stop() function in drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c. A local user can force the system to leak memory and perform denial of service attack.
8) Buffer overflow (CVE-ID: CVE-2022-3545)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the area_cache_get() function in drivers/net/ethernet/netronome/nfp/nfpcore/nfp_cppcore.c. A local user can trigger memory corruption and execute arbitrary code with elevated privileges.
9) 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.
10) Use-after-free (CVE-ID: CVE-2022-3586)
The vulnerability allows a local user to perform a denial of service (DoS) attack.
The vulnerability exists due to a use-after-free error in the way the sch_sfb enqueue function used the socket buffer (SKB) cb
field after the same SKB had been enqueued (and freed) into a child
qdisc. A local user can perform a denial of service (DoS) attack.
11) 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.
12) NULL pointer dereference (CVE-ID: CVE-2022-3621)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the nilfs2 filesystem driver within the nilfs_bmap_lookup_at_level() function in fs/nilfs2/inode.c in Linux kernel. A remote attacker can trick the victim into mounting a specially crafted image and perform a denial of service (DoS) attack.
13) Buffer overflow (CVE-ID: CVE-2022-3628)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the brcmf_fweh_event_worker() function in drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c. A local user can use a specially crafted device to trigger memory corruption and escalate privileges on the system.
14) Memory leak (CVE-ID: CVE-2022-3629)
The vulnerability allows a local user to perform DoS attack.
The vulnerability exists due memory leak within the vsock_connect() function in net/vmw_vsock/af_vsock.c in Linux kernel IPSec implementation. A local user can force the system to leak memory and perform denial of service attack.
15) NULL pointer dereference (CVE-ID: CVE-2022-3646)
The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error in the nilfs2 filesystem driver within the nilfs_attach_log_writer() function in fs/nilfs2/segment.c in Linux kernel. A remote attacker can trick the victim into mounting a specially crafted image and perform a denial of service (DoS) attack.
16) Use-after-free (CVE-ID: CVE-2022-3649)
The vulnerability allows a remote attacker to compromise vulnerable system.
The vulnerability exists due to a use-after-free error within the nilfs2 filesystem driver in nilfs_new_inode() function in fs/nilfs2/inode.c in Linux kernel. A remote attacker can trick the victim into mounting a specially crafted image, trigger a use-after-free error and execute arbitrary code on the system.
Successful exploitation of the vulnerability may allow an attacker to compromise vulnerable system.
17) Out-of-bounds write (CVE-ID: CVE-2022-43750)
The vulnerability allows a local user to escalate privileges on the system.
The vulnerability exists due to a boundary error within the drivers/usb/mon/mon_bin.c in usbmon in the Linux kernel. A local user can trigger an out-of-bounds write and execute arbitrary code with elevated privileges.
Remediation
Install update from vendor's website.