Bug 1256285 (CVE-2015-5229) - CVE-2015-5229 glibc: calloc may return non-zero memory
Summary: CVE-2015-5229 glibc: calloc may return non-zero memory
Keywords:
Status: CLOSED ERRATA
Alias: CVE-2015-5229
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
low
low
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 1244002 1246713 1293976 1294080 1296453
Blocks: 1256291 1293533
TreeView+ depends on / blocked
 
Reported: 2015-08-24 09:46 UTC by Florian Weimer
Modified: 2023-05-12 23:05 UTC (History)
13 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
It was discovered that the calloc implementation in glibc could return memory areas which contain non-zero bytes. This could result in unexpected application behavior such as hangs or crashes.
Clone Of:
Environment:
Last Closed: 2016-02-16 16:58:54 UTC
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:0176 0 normal SHIPPED_LIVE Critical: glibc security and bug fix update 2016-02-16 20:39:10 UTC

Description Florian Weimer 2015-08-24 09:46:16 UTC 
It was discovered that the calloc implementation in glibc, as shipped in the Red Hat Enterprise Linux 6.7 GA and 7.2 GA version, could return memory areas which contain non-zero bytes. This could lead to application misbehavior such as hangs or crashes.
Comment 1 Florian Weimer 2015-08-24 09:50:51 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHBA-2015:1465 https://rhn.redhat.com/errata/RHBA-2015-1465.html
Comment 2 Florian Weimer 2015-08-24 09:51:35 UTC 
Fixed glibc packages for Red Hat Enterprise Linux 6.7 were available at GA time, but are not included in the installation media.
Comment 3 Martin Prpič 2016-01-07 09:59:06 UTC 
This issue was found to also affect Red Hat Enterprise Linux 7.2. This issue does not affect Red Hat Enterprise Linux 7.0 or 7.1.
Comment 8 Martin Prpič 2016-02-15 12:18:05 UTC 
Acknowledgements:

Red Hat would like to thank Jeff Layton for reporting this issue.
Comment 9 errata-xmlrpc 2016-02-16 15:41:18 UTC 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:0176 https://rhn.redhat.com/errata/RHSA-2016-0176.html
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