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Bug 1348424 - (CVE-2015-8926) CVE-2015-8926 libarchive: NULL pointer access in RAR parser
CVE-2015-8926 libarchive: NULL pointer access in RAR parser
Status: CLOSED ERRATA
Product: Security Response
Classification: Other
Component: vulnerability (Show other bugs)
unspecified
All Linux
low Severity low
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Assigned To: Red Hat Product Security
impact=low,public=20160617,reported=2...
: Security
Depends On: 1352776 1353065 1353066
Blocks: 1334215
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Reported: 2016-06-21 03:09 EDT by Doran Moppert
Modified: 2016-10-18 00:58 EDT (History)
4 users (show)

See Also:
Fixed In Version: libarchive 3.2.0
Doc Type: Bug Fix
Doc Text:
A vulnerability was found in libarchive. A specially crafted RAR file could cause the application to disclose a 128k block of memory from an uncontrolled location.
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Clone Of:
Environment:
Last Closed: 2016-10-18 00:58:25 EDT
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CRM:
Verified Versions:
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oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
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External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2016:1844 normal SHIPPED_LIVE Important: libarchive security update 2016-09-12 20:11:35 EDT

  None (edit)
Description Doran Moppert 2016-06-21 03:09:39 EDT 
Upstream bug:
    https://github.com/libarchive/libarchive/issues/518

Upstream fix:
    https://github.com/libarchive/libarchive/commit/aab73938

crafted RAR file can trick libarchive into returning to the caller a 128k block
of data starting at whatever value was previously in the caller's variable.

libarchive-2.8 does not include support for this format.
Comment 2 Doran Moppert 2016-07-05 00:37:37 EDT 
Created libarchive tracking bugs for this issue:

Affects: fedora-all [bug 1352776]
Comment 5 errata-xmlrpc 2016-09-12 16:14:05 EDT 
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 7

Via RHSA-2016:1844 https://rhn.redhat.com/errata/RHSA-2016-1844.html
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