CVE-2025-11495

Publication date 8 October 2025

Last updated 10 December 2025

Ubuntu priority

Cvss 3 Severity Score

Description

A vulnerability was determined in GNU Binutils 2.45. The affected element is the function elf_x86_64_relocate_section of the file elf64-x86-64.c of the component Linker. This manipulation causes heap-based buffer overflow. The attack can only be executed locally. The exploit has been publicly disclosed and may be utilized. Patch name: 6b21c8b2ecfef5c95142cbc2c32f185cb1c26ab0. To fix this issue, it is recommended to deploy a patch.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
binutils	25.10 questing	Fixed 2.45-7ubuntu1.2
	25.04 plucky	Fixed 2.44-3ubuntu1.3
	24.04 LTS noble	Ignored changes too intrusive
	22.04 LTS jammy	Ignored changes too intrsuive
	20.04 LTS focal	Ignored changes too intrsuive
	18.04 LTS bionic	Ignored changes too intrsuive
	16.04 LTS xenial	Ignored changes too intrsuive
	14.04 LTS trusty	Ignored changes too intrsuive

Notes

seth-arnold

binutils isn't safe for untrusted inputs.

Patch details

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

Package	Patch details
binutils	Upstream: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=6b21c8b2ecfef5c95142cbc2c32f185cb1c26ab0

Severity score breakdown

Parameter	Value
Base score	3.3 · Low
Attack vector	Local
Attack complexity	Low
Privileges required	Low
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	Low
Vector	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

References

Related Ubuntu Security Notices (USN)

USN-7919-1
GNU binutils vulnerabilities
10 December 2025