openEuler 20.03 LTS SP3 update for kernel

1) Use-after-free

EUVDB-ID: #VU62358

Risk: Low

CVSSv3.1: 5.3 [CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2022-1280

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 within the drm_lease_held() function in drivers/gpu/drm/drm_lease.c in the Linux kernel. A local user can run a specially crafted program to trigger a use-after-free error and crash the kernel or gain access to sensitive information.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

python2-perf-debuginfo: before 4.19.90-2305.4.0.0203

python3-perf-debuginfo: before 4.19.90-2305.4.0.0203

kernel-tools: before 4.19.90-2305.4.0.0203

perf-debuginfo: before 4.19.90-2305.4.0.0203

bpftool: before 4.19.90-2305.4.0.0203

kernel-debugsource: before 4.19.90-2305.4.0.0203

kernel-tools-debuginfo: before 4.19.90-2305.4.0.0203

kernel-tools-devel: before 4.19.90-2305.4.0.0203

python3-perf: before 4.19.90-2305.4.0.0203

perf: before 4.19.90-2305.4.0.0203

kernel-source: before 4.19.90-2305.4.0.0203

kernel-debuginfo: before 4.19.90-2305.4.0.0203

kernel-devel: before 4.19.90-2305.4.0.0203

python2-perf: before 4.19.90-2305.4.0.0203

bpftool-debuginfo: before 4.19.90-2305.4.0.0203

kernel: before 4.19.90-2305.4.0.0203

External links

http://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1304

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.