CVE-2025-8058

Publication date 23 July 2025

Last updated 4 February 2026

Ubuntu priority

Medium

Why this priority?

Description

The regcomp function in the GNU C library version from 2.4 to 2.41 is subject to a double free if some previous allocation fails. It can be accomplished either by a malloc failure or by using an interposed malloc that injects random malloc failures. The double free can allow buffer manipulation depending of how the regex is constructed. This issue affects all architectures and ABIs supported by the GNU C library.

Status

Package Ubuntu Release Status
eglibc 25.10 questing Not in release
25.04 plucky Not in release
24.04 LTS noble Not in release
22.04 LTS jammy Not in release
14.04 LTS trusty
Needs evaluation
glibc 25.10 questing
Not affected
25.04 plucky
Fixed 2.41-6ubuntu1.2
24.04 LTS noble
Fixed 2.39-0ubuntu8.6
22.04 LTS jammy
Fixed 2.35-0ubuntu3.11
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

References

Related Ubuntu Security Notices (USN)

    • USN-7760-1
    • GNU C Library vulnerability
    • 22 September 2025
    • USN-8005-1
    • GNU C Library vulnerabilities
    • 3 February 2026

Other references