openEuler 24.03 LTS update for xz

1) Heap-based buffer overflow

EUVDB-ID: #VU106970

Risk: High

CVSSv4.0: 6.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber]

CVE-ID: CVE-2025-31115

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

Exploit availability: No

Description

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error within the lzma_stream_decoder_mt() function. A remote attacker can pass specially crafted data to the application, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install updates from vendor's repository.

Vulnerable software versions

openEuler: 24.03 LTS

xz-help: before 5.4.7-5

xz-lzma-compat: before 5.4.7-5

xz-libs: before 5.4.7-5

xz-devel: before 5.4.7-5

xz-debugsource: before 5.4.7-5

xz-debuginfo: before 5.4.7-5

xz: before 5.4.7-5

CPE2.3

• cpe:2.3:o:openeuler:openeuler:24.03:LTS:*:*:*:*:*:*
• cpe:2.3:a:openeuler:xz-help:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:xz-lzma-compat:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:xz-libs:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:xz-devel:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:xz-debugsource:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:xz-debuginfo:*:*:*:*:*:openeuler:*:*
• cpe:2.3:a:openeuler:xz:*:*:*:*:*:openeuler:*:*

External links

https://www.openeuler.org/en/security/security-bulletins/detail/?id=openEuler-SA-2025-1430

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.