Bug 2460012 (CVE-2026-6845)

Summary:	CVE-2026-6845 binutils: Binutils: Denial of Service via crafted ELF file
Product:	[Other] Security Response	Reporter:	OSIDB Bzimport <bzimport>
Component:	vulnerability	Assignee:	Product Security DevOps Team <prodsec-dev>
Status:	NEW ---	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	crizzo, gtanzill, jbuscemi, jmitchel, kshier, maojian16, pbohmill, teagle
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	---
Doc Text:	A flaw was found in binutils, specifically within the `readelf` utility. This vulnerability allows a local attacker to cause a Denial of Service (DoS) by tricking a user into processing a specially crafted Executable and Linkable Format (ELF) file. The exploitation of this flaw can lead to the system becoming unresponsive due to excessive resource consumption or a program crash.	Story Points:	---
Clone Of:		Environment:
Last Closed:		Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	2460509, 2460510, 2460511, 2460512, 2460514, 2460515, 2460516, 2460513
Bug Blocks:

Description OSIDB Bzimport 2026-04-21 08:29:31 UTC

Two DoS vulnerabilities in readelf 2.46:
1. Resource exhaustion: 1KB crafted ELF triggers 6.3TB allocation (357M relocation entries), OOM kill
2. Null pointer deref: malformed sh_entsize/shoff causes SIGSEGV

Found via AFL++ QEMU-mode fuzzing. PoC files provided. Not disclosed publicly.

Comment 3 maojian 2026-05-06 02:24:51 UTC

Does this issue affect versions between 2.34 and 2.44? Also, is there an estimated timeline for an upstream fix or patch release?