Bug 1348416 (CVE-2015-8920)

Summary: CVE-2015-8920 libarchive: Stack out of bounds read in ar parser
Product: [Other] Security Response Reporter: Doran Moppert <dmoppert>
Component: vulnerabilityAssignee: Red Hat Product Security <security-response-team>
Status: CLOSED ERRATA QA Contact:
Severity: low Docs Contact:
Priority: low    
Version: unspecifiedCC: jrusnack, ndevos, praiskup, slawomir
Target Milestone: ---Keywords: Security
Target Release: ---   
Hardware: All   
OS: Linux   
Fixed In Version: libarchive 3.2.0 Doc Type: Bug Fix
Doc Text:
A vulnerability was found in libarchive. A specially crafted AR archive could cause the application to read a single byte of application memory, potentially disclosing it to the attacker.
Story Points: ---
Clone Of: Environment:
Last Closed: 2019-06-08 02:55:12 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Bug Depends On: 1352775, 1352776, 1353065, 1353066, 1353067, 1353068    
Bug Blocks: 1334215    

Description Doran Moppert 2016-06-21 07:02:05 UTC
Upstream bug:

Upstream fix:

> While pruning trailing text from ar filenames, we did not
> check for an empty filename.  This results in reading the 
> byte before the filename on the stack.

Comment 2 Doran Moppert 2016-07-05 04:37:14 UTC
Created libarchive tracking bugs for this issue:

Affects: fedora-all [bug 1352776]
Affects: epel-5 [bug 1352775]

Comment 4 errata-xmlrpc 2016-09-12 19:56:24 UTC
This issue has been addressed in the following products:

  Red Hat Enterprise Linux 6

Via RHSA-2016:1850 https://rhn.redhat.com/errata/RHSA-2016-1850.html

Comment 5 errata-xmlrpc 2016-09-12 20:13:41 UTC
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