CVE-2025-15281

Publication date 20 January 2026

Last updated 4 February 2026

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

Description

Calling wordexp with WRDE_REUSE in conjunction with WRDE_APPEND in the GNU C Library version 2.0 to version 2.42 may cause the interface to return uninitialized memory in the we_wordv member, which on subsequent calls to wordfree may abort the process.

Status

Package Ubuntu Release Status
eglibc 25.10 questing Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
14.04 LTS trusty
Vulnerable
glibc 25.10 questing
Fixed 2.42-0ubuntu3.1
24.04 LTS noble
Fixed 2.39-0ubuntu8.7
22.04 LTS jammy
Fixed 2.35-0ubuntu3.13
20.04 LTS focal
Fixed 2.31-0ubuntu9.18+esm1
18.04 LTS bionic
Fixed 2.27-3ubuntu1.6+esm6
16.04 LTS xenial
Fixed 2.23-0ubuntu11.3+esm9

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package Patch details
glibc

Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

    • USN-8005-1
    • GNU C Library vulnerabilities
    • 3 February 2026

Other references