Bug 1300312 (CVE-2015-8779)

Summary:	CVE-2015-8779 glibc: Unbounded stack allocation in catopen function
Product:	[Other] Security Response	Reporter:	Adam Mariš <amaris>
Component:	vulnerability	Assignee:	Red Hat Product Security <security-response-team>
Status:	CLOSED ERRATA	QA Contact:
Severity:	medium	Docs Contact:
Priority:	medium
Version:	unspecified	CC:	aavati, arjun.is, ashankar, carnil, codonell, fweimer, gnaik, jakub, jwalter, law, mfabian, mnewsome, nlevinki, pfrankli, prd-fedora, rfortier, rhs-bugs, sardella, sgirijan, siddhesh, slawomir, ssaha, vbellur, yozone
Target Milestone:	---	Keywords:	Security
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	glibc 2.23	Doc Type:	Bug Fix
Doc Text:	A stack based buffer overflow vulnerability was found in the catopen() function. An excessively long string passed to the function could cause it to crash or, potentially, execute arbitrary code.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2019-06-08 02:47:39 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:	1300314, 1358015, 1374654
Bug Blocks:	1300316, 1415638

Description Adam Mariš 2016-01-20 13:04:45 UTC

A stack overflow vulnerability in the catopen function was found, causing applications which pass long strings to the catopen function to crash or, potentially execute arbitrary code.

Upstream bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=17905

CVE assignment:

http://seclists.org/oss-sec/2016/q1/153

Comment 1 Adam Mariš 2016-01-20 13:05:42 UTC

Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 1300314]

Comment 7 Martin Prpič 2016-07-07 07:57:13 UTC

Mitigation:

Do not use applications which call catopen with unbounded strings.  The catopen function is rarely used.  Typical application usage involves passing a short, constant string to catopen, so most applications are not affect even if they call catopen.

Comment 9 errata-xmlrpc 2017-03-21 10:35:55 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2017:0680 https://rhn.redhat.com/errata/RHSA-2017-0680.html

Comment 11 errata-xmlrpc 2017-08-01 18:13:25 UTC

This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2017:1916 https://access.redhat.com/errata/RHSA-2017:1916