Bug 1551778 (CVE-2018-7569)

Summary:	CVE-2018-7569 binutils: integer underflow or overflow via an ELF file with a corrupt DWARF FORM block in libbfd library
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, kanderso, klember, ktietz, law, mcermak, mnewsome, mpolacek, nickc, ohudlick, rjones, rschiron, 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:	An integer wraparound has been discovered in the Binary File Descriptor (BFD) library distributed in GNU Binutils up to version 2.30. An attacker could cause a crash by providing an ELF file with corrupted DWARF debug information.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 03:42:23 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:	1551779, 1551780, 1551781, 1569889, 1569890, 1569891, 1572222
Bug Blocks:	1551789

Description Laura Pardo 2018-03-05 23:20:30 UTC

A flaw was found in the read_attribute_value function in dwarf2.c file in the
Binary File Descriptor (BFD) library (aka libbfd), as distributed in GNU
Binutils up to version 2.30, when compiled in 32bit mode. This allows attackers to cause a denial of service (integer wraparound and application
crash) via an ELF file with a corrupt DWARF FORM block.


References:
https://sourceware.org/bugzilla/show_bug.cgi?id=22895

Patch:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=12c963421d045a127c413a0722062b9932c50aa9

Comment 1 Laura Pardo 2018-03-05 23:21:14 UTC

Created binutils tracking bugs for this issue:

Affects: fedora-all [bug 1551779]


Created mingw-binutils tracking bugs for this issue:

Affects: epel-all [bug 1551780]

Comment 6 errata-xmlrpc 2018-10-30 07:23:42 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