Anolis OS update for kernel

Published: 2022-05-16 | Updated: 2025-03-29

Risk	High
Patch available	YES
Number of vulnerabilities	13
CVE-ID	CVE-2020-36516 CVE-2021-22600 CVE-2021-4135 CVE-2021-4204 CVE-2021-44879 CVE-2021-45402 CVE-2022-0995 CVE-2022-1011 CVE-2022-1016 CVE-2022-23222 CVE-2022-24448 CVE-2022-25636 CVE-2022-27666
CWE-ID	CWE-327 CWE-415 CWE-200 CWE-125 CWE-476 CWE-787 CWE-416 CWE-264 CWE-909 CWE-122
Exploitation vector	Network
Public exploit	Vulnerability #2 is being exploited in the wild. Public exploit code for vulnerability #4 is available. Public exploit code for vulnerability #7 is available. Public exploit code for vulnerability #8 is available. Public exploit code for vulnerability #10 is available. Public exploit code for vulnerability #12 is available. Public exploit code for vulnerability #13 is available.
Vulnerable software	Anolis OS Operating systems & Components / Operating system python3-perf Operating systems & Components / Operating system package or component perf Operating systems & Components / Operating system package or component kernel-tools-libs-devel Operating systems & Components / Operating system package or component kernel-tools-libs Operating systems & Components / Operating system package or component kernel-tools Operating systems & Components / Operating system package or component kernel-modules-internal Operating systems & Components / Operating system package or component kernel-modules-extra Operating systems & Components / Operating system package or component kernel-modules Operating systems & Components / Operating system package or component kernel-headers Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component kernel-debug-modules-extra Operating systems & Components / Operating system package or component kernel-debug-modules Operating systems & Components / Operating system package or component kernel-debug-devel Operating systems & Components / Operating system package or component kernel-debug-core Operating systems & Components / Operating system package or component kernel-debug Operating systems & Components / Operating system package or component kernel-core Operating systems & Components / Operating system package or component kernel Operating systems & Components / Operating system package or component bpftool Operating systems & Components / Operating system package or component
Vendor	OpenAnolis

Security Bulletin

This security bulletin contains information about 13 vulnerabilities.

1) Use of a broken or risky cryptographic algorithm

EUVDB-ID: #VU66811

Risk: Medium

CVSSv4.0: 1.7 [CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2020-36516

CWE-ID: CWE-327 - Use of a Broken or Risky Cryptographic Algorithm

Exploit availability: No

Description

The vulnerability allows a remote attacker to perform a denial of service (DoS) or MitM attacks.

The vulnerability exists due to an error in the mixed IPID assignment method with the hash-based IPID assignment policy in Linux kernel. A remote attacker can inject data into a victim's TCP session or terminate that session.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

2) Double Free

EUVDB-ID: #VU63766

Risk: High

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Amber]

CVE-ID: CVE-2021-22600

CWE-ID: CWE-415 - Double Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary error in the packet_set_ring() function in net/packet/af_packet.c. A local user can pass specially crafted data to the application, trigger double free error and escalate privileges on the system.

Note, the vulnerability is being actively exploited in the wild against Android users.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

Yes. This vulnerability is being exploited in the wild.

3) Information disclosure

EUVDB-ID: #VU63566

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-4135

CWE-ID: CWE-200 - Information exposure

Exploit availability: No

Description

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

The vulnerability exists due to simulated networking device driver for the Linux kernel does not properly initialize memory in certain situations. A local user can gain unauthorized access to sensitive information (kernel memory).

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

4) Out-of-bounds read

EUVDB-ID: #VU86247

Risk: Low

CVSSv4.0: 5.4 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2021-4204

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary condition in Linux kernel eBPF. A local user trigger an out-of-bounds read error and read contents of memory on the system or crash the kernel.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

5) NULL pointer dereference

EUVDB-ID: #VU62483

Risk: Low

CVSSv4.0: 4.3 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-44879

CWE-ID: CWE-476 - NULL Pointer Dereference

Exploit availability: No

Description

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 gc_data_segment() function in fs/f2fs/gc.c. A local user can mount a specially crafted f2fs image, trigger a NULL pointer dereference and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

6) Out-of-bounds read

EUVDB-ID: #VU63567

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2021-45402

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

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

The vulnerability exists due to check_alu_op() function in kernel/bpf/verifier.c does not properly update bounds while handling the mov32 instruction. A local user can obtain potentially sensitive address information.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

7) Out-of-bounds write

EUVDB-ID: #VU61772

Risk: Low

CVSSv4.0: 8.5 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:A/U:Clear]

CVE-ID: CVE-2022-0995

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary error within the Linux kernel’s watch_queue event notification subsystem. A local user can run a specially crafted program to trigger an out-of-bounds write and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, a fully functional exploit for this vulnerability is available.

8) Use-after-free

EUVDB-ID: #VU63386

Risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2022-1011

CWE-ID: CWE-416 - Use After Free

Exploit availability: Yes

Description

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

The vulnerability exists due to a use-after-free error in the write() function of FUSE filesystem. A local user can retireve (partial) /etc/shadow hashes and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

9) Use-after-free

EUVDB-ID: #VU62028

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-1016

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error in net/netfilter/nf_tables_core.c:nft_do_chain in Linux kernel.. A local user can trigger a use-after-free error and gain access to sensitive information.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

10) Security restrictions bypass

EUVDB-ID: #VU59896

Risk: Low

CVSSv4.0: 6.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2022-23222

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: Yes

Description

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

The vulnerability exists due to availability of pointer arithmetic via certain *_OR_NULL pointer types in kernel/bpf/verifier.c in the Linux kernel. A local user can run a specially crafted program to execute arbitrary code with root privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

11) Missing initialization of resource

EUVDB-ID: #VU61211

Risk: Low

CVSSv4.0: 1.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2022-24448

CWE-ID: CWE-909 - Missing initialization of resource

Exploit availability: No

Description

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

The vulnerability exists due to missing initialization of resource within the fs/nfs/dir.c in the Linux kernel. If an application sets the O_DIRECTORY flag, and tries to open a regular file, nfs_atomic_open() performs a regular lookup. If a regular file is found, ENOTDIR should occur, but the server instead returns uninitialized data in the file descriptor.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.

12) Heap-based buffer overflow

EUVDB-ID: #VU61271

Risk: Low

CVSSv4.0: 7.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2022-25636

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary error in net/netfilter/nf_dup_netdev.c in the Linux kernel, related to nf_tables_offload. A local user can trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.

13) Heap-based buffer overflow

EUVDB-ID: #VU61672

Risk: Low

CVSSv4.0: 6.4 [CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2022-27666

CWE-ID: CWE-122 - Heap-based Buffer Overflow

Exploit availability: Yes

Description

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

The vulnerability exists due to a boundary error within IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c in Linux kernel. A local unprivileged user can pass specially crafted data to the system, trigger a heap-based buffer overflow and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

Anolis OS: 8

python3-perf: before 4.19.91-25.8

perf: before 4.19.91-25.8

kernel-tools-libs-devel: before 4.19.91-25.8

kernel-tools-libs: before 4.19.91-25.8

kernel-tools: before 4.19.91-25.8

kernel-modules-internal: before 4.19.91-25.8

kernel-modules-extra: before 4.19.91-25.8

kernel-modules: before 4.19.91-25.8

kernel-headers: before 4.19.91-25.8

kernel-devel: before 4.19.91-25.8

kernel-debug-modules-extra: before 4.19.91-25.8

kernel-debug-modules: before 4.19.91-25.8

kernel-debug-devel: before 4.19.91-25.8

kernel-debug-core: before 4.19.91-25.8

kernel-debug: before 4.19.91-25.8

kernel-core: before 4.19.91-25.8

kernel: before 4.19.91-25.8

bpftool: before 4.19.91-25.8

CPE2.3

External links

https://anas.openanolis.cn/errata/detail/ANSA-2022:0145

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.