Bug 1300312 (CVE-2015-8779) - CVE-2015-8779 glibc: Unbounded stack allocation in catopen function
Summary: CVE-2015-8779 glibc: Unbounded stack allocation in catopen function
Alias: CVE-2015-8779
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
Target Milestone: ---
Assignee: Red Hat Product Security
QA Contact:
Depends On: 1300314 1358015 1374654
Blocks: 1300316 1415638
TreeView+ depends on / blocked
Reported: 2016-01-20 13:04 UTC by Adam Mariš
Modified: 2021-02-17 04:29 UTC (History)
24 users (show)

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.
Clone Of:
Last Closed: 2019-06-08 02:47:39 UTC

Attachments (Terms of Use)

System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2017:0680 0 normal SHIPPED_LIVE Moderate: glibc security and bug fix update 2017-03-21 12:36:34 UTC
Red Hat Product Errata RHSA-2017:1916 0 normal SHIPPED_LIVE Moderate: glibc security, bug fix, and enhancement update 2017-08-01 18:05:43 UTC
Sourceware 17905 0 P2 RESOLVED catopen() Multiple unbounded stack allocations (CVE-2015-8779) 2020-04-06 14:54:24 UTC

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:


CVE assignment:


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

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

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