openEuler 20.03 LTS SP3 update for kernel

Published: 2023-08-12

Risk	Low
Patch available	YES
Number of vulnerabilities	2
CVE-ID	CVE-2023-3863 CVE-2023-4132
CWE-ID	CWE-416
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	openEuler Operating systems & Components / Operating system kernel-source Operating systems & Components / Operating system package or component kernel-tools-devel Operating systems & Components / Operating system package or component python2-perf Operating systems & Components / Operating system package or component kernel-tools-debuginfo Operating systems & Components / Operating system package or component kernel-devel Operating systems & Components / Operating system package or component kernel-tools Operating systems & Components / Operating system package or component kernel-debugsource Operating systems & Components / Operating system package or component kernel-debuginfo Operating systems & Components / Operating system package or component perf Operating systems & Components / Operating system package or component python3-perf Operating systems & Components / Operating system package or component bpftool Operating systems & Components / Operating system package or component python3-perf-debuginfo Operating systems & Components / Operating system package or component bpftool-debuginfo Operating systems & Components / Operating system package or component python2-perf-debuginfo Operating systems & Components / Operating system package or component perf-debuginfo 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 2 vulnerabilities.

1) Use-after-free

EUVDB-ID: #VU79479

Risk: Low

CVSSv4.0: 5.7 [CVSS:4.0/AV:L/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2023-3863

CWE-ID: CWE-416 - Use After Free

Exploit availability: No

Description

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

The vulnerability exists due to a use-after-free error within the nfc_llcp_find_local() function in net/nfc/llcp_core.c in NFC implementation in Linux kernel. A local user can execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 20.03 LTS SP3

kernel-source: before 4.19.90-2308.2.0.0213

kernel-tools-devel: before 4.19.90-2308.2.0.0213

python2-perf: before 4.19.90-2308.2.0.0213

kernel-tools-debuginfo: before 4.19.90-2308.2.0.0213

kernel-devel: before 4.19.90-2308.2.0.0213

kernel-tools: before 4.19.90-2308.2.0.0213

kernel-debugsource: before 4.19.90-2308.2.0.0213

kernel-debuginfo: before 4.19.90-2308.2.0.0213

perf: before 4.19.90-2308.2.0.0213

python3-perf: before 4.19.90-2308.2.0.0213

bpftool: before 4.19.90-2308.2.0.0213

python3-perf-debuginfo: before 4.19.90-2308.2.0.0213

bpftool-debuginfo: before 4.19.90-2308.2.0.0213

python2-perf-debuginfo: before 4.19.90-2308.2.0.0213

perf-debuginfo: before 4.19.90-2308.2.0.0213

kernel: before 4.19.90-2308.2.0.0213

CPE2.3

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2023-1495

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) Use-after-free

EUVDB-ID: #VU79712