Bug 1300303 - (CVE-2015-8778) CVE-2015-8778 glibc: Integer overflow in hcreate and hcreate_r
CVE-2015-8778 glibc: Integer overflow in hcreate and hcreate_r
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=20150410,repor...
: Security
Depends On: 1300304 1358013 1374657
Blocks: 1300316 1386080 1415638
  Show dependency treegraph
 
Reported: 2016-01-20 07:52 EST by Adam Mariš
Modified: 2017-08-01 14:12 EDT (History)
22 users (show)

See Also:
Fixed In Version: glibc 2.23
Doc Type: Bug Fix
Doc Text:
An integer overflow vulnerability was found in hcreate() and hcreate_r() functions which could result in an out-of-bounds memory access. This could lead to application crash or, potentially, arbitrary code execution.
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External Trackers
Tracker ID Priority Status Summary Last Updated
Sourceware 18240 None None None 2016-07-19 16:10 EDT

  None (edit)
Description Adam Mariš 2016-01-20 07:52:02 EST
An integer overflow vulnerability was found in hcreate and hcreate_r which can result in an out-of-bound memory access.  This could lead to application crashes or, potentially, arbitrary code execution.

Upstream bug:

https://sourceware.org/bugzilla/show_bug.cgi?id=18240

CVE assignment:

http://seclists.org/oss-sec/2016/q1/153
Comment 1 Adam Mariš 2016-01-20 07:52:55 EST
Created glibc tracking bugs for this issue:

Affects: fedora-all [bug 1300304]
Comment 4 Martin Prpič 2016-07-07 03:57:03 EDT
Mitigation:

Do not use any applications which call hcreate or hcreate_r with a large size argument.

These functions are used only rarely, and most callers supply a constant argument.  Other applications calculate the size argument in such a way that the error condition cannot be triggered.
Comment 6 errata-xmlrpc 2017-03-21 06:35:25 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 8 errata-xmlrpc 2017-08-01 14:12:58 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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