Bug 1542275 (CVE-2018-6543)

Summary:	CVE-2018-6543 binutils: integer overflow in load_specific_debug_section function in objdump.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED NOTABUG	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aoliva, dvlasenk, jakub, kanderso, law, mcermak, mnewsome, mpolacek, nickc, ohudlick
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2018-02-21 10:22:41 UTC	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:	1542276
Bug Blocks:	1542280

Description Laura Pardo 2018-02-06 00:15:31 UTC

A flaw was found in GNU Binutils 2.30, there's an integer overflow in the function load_specific_debug_section() in objdump.c, which results in `malloc()` with 0 size. A crafted ELF file allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact. 

References: 
https://sourceware.org/bugzilla/show_bug.cgi?id=22769

Patch:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=f2023ce7e8d70b0155cc6206c901e185260918f0

Comment 1 Laura Pardo 2018-02-06 00:15:54 UTC

Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 1542276]

Comment 2 Stefan Cornelius 2018-02-20 17:42:18 UTC

Introduced by https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;a=commitdiff;h=4f1881b94473f1034f950feb863b464435a8fb5f

Comment 3 Stefan Cornelius 2018-02-21 10:16:30 UTC

Statement:

This issue did not affect the versions of binutils as shipped with Red Hat Enterprise Linux 5, 6, and 7.