Bug 1360279 (CVE-2015-8949)

Summary:	CVE-2015-8949 perl-DBD-MySQL: Use after free when my_login fails
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED WONTFIX	QA Contact:
Severity:	low	Docs Contact:
Priority:	low
Version:	unspecified	CC:	dkholia, hhorak, jorton, jplesnik, perl-devel, perl-maint-list, ppisar, psabata, sardella, slawomir
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	perl-DBD-MySQL 4.0.34	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-08-02 09:07:14 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:	1360280
Bug Blocks:	1360282

Description Adam Mariš 2016-07-26 11:55:50 UTC

A use-after-free vulnerability in perl-DBD-MySQL was found. When my_login fails, the code tries to call mysql_errno on the mysql connection. However, my_login has already free'd that connection variable, which causes use-after-free error.

Upstream bug:

https://github.com/perl5-dbi/DBD-mysql/pull/45

Upstream patch:

https://github.com/perl5-dbi/DBD-mysql/commit/cf0aa7751f6ef8445e9310a64b14dc81460ca156

CVE request:

http://seclists.org/oss-sec/2016/q3/150

Comment 1 Adam Mariš 2016-07-26 11:56:20 UTC

Created perl-DBD-MySQL tracking bugs for this issue:

Affects: fedora-all [bug 1360280]

Comment 4 Fedora Update System 2016-08-04 20:53:46 UTC

perl-DBD-MySQL-4.035-1.fc24 has been pushed to the Fedora 24 stable repository. If problems still persist, please make note of it in this bug report.

Comment 5 Fedora Update System 2016-08-12 01:24:02 UTC

perl-DBD-MySQL-4.033-2.fc23 has been pushed to the Fedora 23 stable repository. If problems still persist, please make note of it in this bug report.