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Bug 797094

Summary:	glibc: unbound alloca use in nscd_getserv_r and glob_in_dir
Product:	Red Hat Enterprise Linux 6	Reporter:	Tomas Hoger <thoger>
Component:	glibc	Assignee:	Jeff Law <law>
Status:	CLOSED ERRATA	QA Contact:	qe-baseos-tools-bugs
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	6.2	CC:	fweimer, mfranc, pmuller
Target Milestone:	rc
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-06-20 12:09:59 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:

Description Tomas Hoger 2012-02-24 09:19:20 UTC

Description of problem:
Upstream has fixed couple of unbound alloca uses which can lead to program crashes if excessively long inputs are passed to certain functions.

http://sourceware.org/bugzilla/show_bug.cgi?id=12671
http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=f2962a71959fd254a7a223437ca4b63b9e81130c

covers cases that can be triggered via getaddrinfo, getservbyname* and glob.

http://sourceware.org/git/?p=glibc.git;a=commitdiff;h=34a9094f49241ebb72084c536cf468fd51ebe3ec

covers other alloca uses inside getaddrinfo.

Version-Release number of selected component (if applicable):
glibc-2.12-1.47.el6_2.5

Comment 5 errata-xmlrpc 2012-06-20 12:09:59 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2012-0763.html