openEuler 22.03 LTS update for kernel

Published: 2022-09-23

Risk	Low
Patch available	YES
Number of vulnerabilities	5
CVE-ID	CVE-2022-26373 CVE-2022-2991 CVE-2022-2905 CVE-2022-3078 CVE-2022-40307
CWE-ID	CWE-264 CWE-122 CWE-125 CWE-416
Exploitation vector	Local
Public exploit	N/A
Vulnerable software Subscribe	openEuler Operating systems & Components / Operating system kernel-tools-debuginfo Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component perf Operating systems & Components / Operating system package or component python3-perf-debuginfo Operating systems & Components / Operating system package or component kernel-debuginfo Operating systems & Components / Operating system package or component kernel-tools Operating systems & Components / Operating system package or component kernel-headers Operating systems & Components / Operating system package or component kernel-debugsource Operating systems & Components / Operating system package or component bpftool-debuginfo Operating systems & Components / Operating system package or component kernel-source Operating systems & Components / Operating system package or component bpftool Operating systems & Components / Operating system package or component perf-debuginfo Operating systems & Components / Operating system package or component kernel-tools-devel Operating systems & Components / Operating system package or component python3-perf Operating systems & Components / Operating system package or component kernel Operating systems & Components / Operating system package or component
Vendor	openEuler

Security Bulletin

This security bulletin contains information about 5 vulnerabilities.

1) Security restrictions bypass

EUVDB-ID: #VU66549

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-26373

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

Exploit availability: No

Description

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

The vulnerability exists due to non-transparent sharing of return predictor targets between contexts in Intel CPU processors. A local user can bypass the expected architecture isolation between contexts and gain access to sensitive information on the system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-tools-debuginfo: before 5.10.0-60.57.0.85

kernel-devel: before 5.10.0-60.57.0.85

perf: before 5.10.0-60.57.0.85

python3-perf-debuginfo: before 5.10.0-60.57.0.85

kernel-debuginfo: before 5.10.0-60.57.0.85

kernel-tools: before 5.10.0-60.57.0.85

kernel-headers: before 5.10.0-60.57.0.85

kernel-debugsource: before 5.10.0-60.57.0.85

bpftool-debuginfo: before 5.10.0-60.57.0.85

kernel-source: before 5.10.0-60.57.0.85

bpftool: before 5.10.0-60.57.0.85

perf-debuginfo: before 5.10.0-60.57.0.85

kernel-tools-devel: before 5.10.0-60.57.0.85

python3-perf: before 5.10.0-60.57.0.85

kernel: before 5.10.0-60.57.0.85

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1942

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.

2) Heap-based buffer overflow

EUVDB-ID: #VU67476

Risk: Low

CVSSv3.1: 7.7 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2991

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error within the LightNVM subsystem in Linux kernel. A local user can execute arbitrary code on the system with kernel privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-tools-debuginfo: before 5.10.0-60.57.0.85

kernel-devel: before 5.10.0-60.57.0.85

perf: before 5.10.0-60.57.0.85

python3-perf-debuginfo: before 5.10.0-60.57.0.85

kernel-debuginfo: before 5.10.0-60.57.0.85

kernel-tools: before 5.10.0-60.57.0.85

kernel-headers: before 5.10.0-60.57.0.85

kernel-debugsource: before 5.10.0-60.57.0.85

bpftool-debuginfo: before 5.10.0-60.57.0.85

kernel-source: before 5.10.0-60.57.0.85

bpftool: before 5.10.0-60.57.0.85

perf-debuginfo: before 5.10.0-60.57.0.85

kernel-tools-devel: before 5.10.0-60.57.0.85

python3-perf: before 5.10.0-60.57.0.85

kernel: before 5.10.0-60.57.0.85

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1942

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.

3) Out-of-bounds read

EUVDB-ID: #VU67509

Risk: Low

CVSSv3.1: 2.9 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-2905

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

Exploit availability: No

Description

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

The vulnerability exists due to a boundary condition in the Linux kernel BPF subsystem. A local user can call the bpf_tail_call() function with a key larger than the max_entries of the map, trigger an out-of-bounds read and read parts of kernel memory.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-tools-debuginfo: before 5.10.0-60.57.0.85

kernel-devel: before 5.10.0-60.57.0.85

perf: before 5.10.0-60.57.0.85

python3-perf-debuginfo: before 5.10.0-60.57.0.85

kernel-debuginfo: before 5.10.0-60.57.0.85

kernel-tools: before 5.10.0-60.57.0.85

kernel-headers: before 5.10.0-60.57.0.85

kernel-debugsource: before 5.10.0-60.57.0.85

bpftool-debuginfo: before 5.10.0-60.57.0.85

kernel-source: before 5.10.0-60.57.0.85

bpftool: before 5.10.0-60.57.0.85

perf-debuginfo: before 5.10.0-60.57.0.85

kernel-tools-devel: before 5.10.0-60.57.0.85

python3-perf: before 5.10.0-60.57.0.85

kernel: before 5.10.0-60.57.0.85

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1942

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) Use-after-free

EUVDB-ID: #VU67514

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-3078

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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 drivers/media/test-drivers/vidtv/vidtv_s302m.c in Linux kernel. A local user can trigger a use-after-free error and crash the kernel.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-tools-debuginfo: before 5.10.0-60.57.0.85

kernel-devel: before 5.10.0-60.57.0.85

perf: before 5.10.0-60.57.0.85

python3-perf-debuginfo: before 5.10.0-60.57.0.85

kernel-debuginfo: before 5.10.0-60.57.0.85

kernel-tools: before 5.10.0-60.57.0.85

kernel-headers: before 5.10.0-60.57.0.85

kernel-debugsource: before 5.10.0-60.57.0.85

bpftool-debuginfo: before 5.10.0-60.57.0.85

kernel-source: before 5.10.0-60.57.0.85

bpftool: before 5.10.0-60.57.0.85

perf-debuginfo: before 5.10.0-60.57.0.85

kernel-tools-devel: before 5.10.0-60.57.0.85

python3-perf: before 5.10.0-60.57.0.85

kernel: before 5.10.0-60.57.0.85

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1942

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.

5) Use-after-free

EUVDB-ID: #VU67915

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-40307

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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 drivers/firmware/efi/capsule-loader.c in Linux kernel. A local user can trigger a use-after-free error and perform a denial of service (DoS) attack.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS

kernel-tools-debuginfo: before 5.10.0-60.57.0.85

kernel-devel: before 5.10.0-60.57.0.85

perf: before 5.10.0-60.57.0.85

python3-perf-debuginfo: before 5.10.0-60.57.0.85

kernel-debuginfo: before 5.10.0-60.57.0.85

kernel-tools: before 5.10.0-60.57.0.85

kernel-headers: before 5.10.0-60.57.0.85

kernel-debugsource: before 5.10.0-60.57.0.85

bpftool-debuginfo: before 5.10.0-60.57.0.85

kernel-source: before 5.10.0-60.57.0.85

bpftool: before 5.10.0-60.57.0.85

perf-debuginfo: before 5.10.0-60.57.0.85

kernel-tools-devel: before 5.10.0-60.57.0.85

python3-perf: before 5.10.0-60.57.0.85

kernel: before 5.10.0-60.57.0.85

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2022-1942

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.