openEuler 22.03 LTS SP2 update for kernel



Risk Low
Patch available YES
Number of vulnerabilities 1
CVE-ID CVE-2023-3389
CWE-ID CWE-416
Exploitation vector Local
Public exploit N/A
Vulnerable software
 openEuler
Operating systems & Components / Operating system

patch-kernel
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 one low risk vulnerability.

1) Use-after-free

EUVDB-ID: #VU78066

Risk: Low

CVSSv4.0: 5.9 [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:U/U:Clear]

CVE-ID: CVE-2023-3389

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 in the Linux Kernel io_uring subsystem. A local user can exploit a race condition and execute arbitrary code with elevated privileges.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 22.03 LTS SP2

patch-kernel: before 5.10.0-153.12.0.92

kernel: before 5.10.0-153.12.0.92

CPE2.3 External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-HotPatchSA-2023-1001


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.



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