Bug 1300312 - (CVE-2015-8779) CVE-2015-8779 glibc: Unbounded stack allocation in catopen function
CVE-2015-8779 glibc: Unbounded stack allocation in catopen function
Status: NEW
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
medium Severity medium
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Assigned To: Red Hat Product Security
impact=moderate,public=20150129,repor...
: Security
Depends On: 1300314 1358015 1374654
Blocks: 1300316 1415638
  Show dependency treegraph
 
Reported: 2016-01-20 08:04 EST by Adam Mariš
Modified: 2017-08-01 14:13 EDT (History)
25 users (show)

See Also:
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.
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External Trackers
Tracker ID Priority Status Summary Last Updated
Sourceware 17905 None None None 2016-01-20 08:11 EST

  None (edit)
Description Adam Mariš 2016-01-20 08:04:45 EST
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 08:05:42 EST
Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 1300314]
Comment 7 Martin Prpič 2016-07-07 03:57:13 EDT
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 06:35:55 EDT
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 14:13:25 EDT
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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