Bug 1171701 (CVE-2014-9474)

Summary:	CVE-2014-9474 mpfr: buffer overflow in mpfr_strtofr
Product:	[Other] Security Response	Reporter:	Vasyl Kaigorodov <vkaigoro>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	high	Docs Contact:
Priority:	high
Version:	unspecified	CC:	carnil, fkluknav, rdieter
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	mpfr 3.1.2	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2015-08-21 23:33:18 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:	1171710
Bug Blocks:	1171708

Description Vasyl Kaigorodov 2014-12-08 12:40:22 UTC

A buffer overflow was reported [1] in mpfr.
This is due to incorrect GMP documentation for mpn_set_str about the size of a buffer (discussion is at [1]; first fix in the GMP documentation is at [2]). This bug is present in the MPFR versions from 2.1.0 (adding mpfr_strtofr) to this one, and can be detected by running "make check" in a 32-bit ABI under GNU/Linux with alloca disabled (this is currently possible by using the --with-gmp-build configure option where alloca has been disabled in the GMP build). It is fixed by the strtofr patch [3].
Corresponding changeset in the 3.1 branch: 9110 [4].

[1]: https://gmplib.org/list-archives/gmp-bugs/2013-December/003267.html
[2]: https://gmplib.org/repo/gmp-5.1/raw-rev/d19172622a74
[3]: http://www.mpfr.org/mpfr-3.1.2/patch11
[4]: https://gforge.inria.fr/scm/viewvc.php?view=rev&root=mpfr&revision=9110

Comment 1 Vasyl Kaigorodov 2014-12-08 13:02:33 UTC

Created mpfr tracking bugs for this issue:

Affects: fedora-all [bug 1171710]

Comment 3 Frantisek Kluknavsky 2014-12-12 22:39:36 UTC

https://admin.fedoraproject.org/updates/mpfr-3.1.2-8.fc21

Comment 4 Martin Prpič 2015-01-06 09:08:50 UTC

MITRE assigned CVE-2014-9474 to this issue: http://seclists.org/oss-sec/2015/q1/18

Comment 5 Fedora Update System 2015-01-07 23:52:25 UTC

mpfr-3.1.2-8.fc21 has been pushed to the Fedora 21 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 6 Fedora Update System 2015-01-07 23:53:34 UTC

mpfr-3.1.2-5.fc20 has been pushed to the Fedora 20 stable repository.  If problems still persist, please make note of it in this bug report.

Comment 7 Vincent Danen 2015-08-21 23:33:08 UTC

Statement:

Red Hat Product Security has rated this issue as having Low security impact. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.

Comment 9 errata-xmlrpc 2025-06-23 02:36:52 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7 Extended Lifecycle Support

Via RHSA-2025:9332 https://access.redhat.com/errata/RHSA-2025:9332