Bug 1574697 (CVE-2018-10535)

Summary:	CVE-2018-10535 binutils: NULL pointer dereference in elf.c
Product:	[Other] Security Response	Reporter:	Laura Pardo <lpardo>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	aoliva, dvlasenk, erik-fedora, jakub, klember, ktietz, law, mnewsome, nickc, ohudlick, rjones, yselkowi
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:	2019-06-10 10:21:06 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:	1574698, 1574700, 1574701, 1574704, 1574705, 1578974, 1578975, 1578978, 1578979
Bug Blocks:	1574703

Description Laura Pardo 2018-05-03 21:13:01 UTC

A flaw was found in the ignore_section_sym function in elf.c in the Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU Binutils 2.30, does not validate the output_section pointer in the case of a symtab entry with a "SECTION" type that has a "0" value, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted file, as demonstrated by objcopy.


References:
https://sourceware.org/bugzilla/show_bug.cgi?id=23113

Patch:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=db0c309f4011ca94a4abc8458e27f3734dab92ac

Comment 1 Laura Pardo 2018-05-03 21:15:45 UTC

Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 1574700]


Created mingw-binutils tracking bugs for this issue:

Affects: epel-all [bug 1574698]
Affects: fedora-all [bug 1574701]

Comment 3 Pedro Yóssis Silva Barbosa 2018-05-16 17:43:05 UTC

The worst outcome should be a mere crash/application abort.

Comment 8 errata-xmlrpc 2018-10-30 07:24:17 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2018:3032 https://access.redhat.com/errata/RHSA-2018:3032