CVE-2025-69647

Publication date 9 March 2026

Last updated 13 April 2026

Ubuntu priority

Cvss 3 Severity Score

Description

GNU Binutils thru 2.45.1 readelf contains a denial-of-service vulnerability when processing a crafted binary with malformed DWARF loclists data. A logic flaw in the DWARF parsing code can cause readelf to repeatedly print the same table output without making forward progress, resulting in an unbounded output loop that never terminates unless externally interrupted. A local attacker can trigger this behavior by supplying a malicious input file, causing excessive CPU and I/O usage and preventing readelf from completing its analysis.

Read the notes from the security team

Status

Show unmaintained releases

Package	Ubuntu Release	Status
binutils	25.10 questing	Vulnerable
	24.04 LTS noble	Vulnerable
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

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=455446bbdc8675f34808187de2bbad4682016ff7

Severity score breakdown

Parameter	Value
Base score	6.2 · Medium
Attack vector	Local
Attack complexity	Low
Privileges required	None
User interaction	None
Scope	Unchanged
Confidentiality	None
Integrity impact	None
Availability impact	High
Vector	CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H