Bug 1077023 (CVE-2014-2524)

Summary:	CVE-2014-2524 readline: insecure temporary file use in _rl_tropen()
Product:	[Other] Security Response	Reporter:	Murray McAllister <mmcallis>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	c.david86, erik-fedora, fedora-mingw, jchaloup, jgalipea, jkurik, jrusnack, ktietz, lfarkas, lnykryn, mlichvar, pfrields, rjones, vdanen
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-05-21 13:43:26 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:	1077026, 1077027, 1077035
Bug Blocks:	1077036

Description Murray McAllister 2014-03-17 03:06:51 UTC

Steve Kemp discovered the _rl_tropen() function in readline, a set of libraries to handle command lines, insecurely handled a temporary file. This could allow a local attacker to perform symbolic link attacks. As noted in the CVE request, _rl_tropen() is typically only called during debugging.

CVE request: http://seclists.org/oss-sec/2014/q1/579

Comment 2 Murray McAllister 2014-03-17 03:08:47 UTC

Created readline tracking bugs for this issue:

Affects: fedora-all [bug 1077026]

Comment 4 Murray McAllister 2014-03-17 03:47:38 UTC

Created mingw-readline tracking bugs for this issue:

Affects: fedora-all [bug 1077035]

Comment 5 Martin Prpič 2014-03-17 19:35:43 UTC

MITRE assigned CVE-2014-2524 to this issue:

http://seclists.org/oss-sec/2014/q1/588

Comment 7 Tomas Hoger 2014-05-26 13:38:34 UTC

Fixed upstream in 6.3 patch 3 by making the code only get compiled in when building with -DDEBUG.

http://lists.gnu.org/archive/html/bug-readline/2014-03/msg00057.html
http://git.savannah.gnu.org/cgit/readline.git/commit/?id=8408f86
ftp://ftp.cwru.edu/pub/bash/readline-6.3-patches/readline63-003

Comment 8 Vincent Danen 2014-09-16 17:05:26 UTC

Statement:

This issue is only exposed via readline's debugging/tracing code and is not used by readline or any other application in Red Hat Enterprise Linux.  The tracing functions are defined in a private header file and are only meant for the readline library's internal use.  In general use, there is no exposure of this insecure temporary file issue, and while this does affect the versions of readline as shipped with Red Hat Enterprise Linux 5, 6 and 7 it is not currently planned to be addressed in future updates.

Red Hat Product Security has rated this issue as having Low security impact. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.