Bug 1360279 – CVE-2015-8949 perl-DBD-MySQL: Use after free when my_login fails

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Bug 1360279 - (CVE-2015-8949) CVE-2015-8949 perl-DBD-MySQL: Use after free when my_login fails

Summary:	CVE-2015-8949 perl-DBD-MySQL: Use after free when my_login fails

Status:	CLOSED WONTFIX

Aliases:	CVE-2015-8949

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
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URL:
Whiteboard:	impact=low,public=20151114,reported=2...
Keywords:	Security

Depends On:	1360280
Blocks:	1360282
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Reported:	2016-07-26 07:55 EDT by Adam Mariš
Modified:	2016-08-11 21:24 EDT (History)
CC List:	10 users (show)

See Also:
Fixed In Version:	perl-DBD-MySQL 4.0.34
Doc Type:	If docs needed, set a value
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Last Closed:	2016-08-02 05:07:14 EDT
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Description Adam Mariš 2016-07-26 07:55:50 EDT

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 07:56:20 EDT

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

Affects: fedora-all [bug 1360280]

Comment 4 Fedora Update System 2016-08-04 16:53:46 EDT

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 2016-08-11 21:24:02 EDT

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.

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