Bug 1348429 – CVE-2015-8928 libarchive: Heap out of bounds read in mtree parser

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Bug 1348429 - (CVE-2015-8928) CVE-2015-8928 libarchive: Heap out of bounds read in mtree parser

Summary:	CVE-2015-8928 libarchive: Heap out of bounds read in mtree parser

Status:	CLOSED ERRATA

Aliases:	CVE-2015-8928

Product:	Security Response
Classification:	Other
Component:	vulnerability (Show other bugs)
Sub Component:
Version:	unspecified
Hardware:	All Linux

Priority	low Severity low
Target Milestone:	---
Target Release:	---
Assigned To:	Red Hat Product Security
QA Contact:
Docs Contact:

URL:
Whiteboard:	impact=low,public=20160617,reported=2...
Keywords:	Security

Depends On:	1352776 1353065 1353066
Blocks:	1334215
	Show dependency tree / graph

Reported:	2016-06-21 03:14 EDT by Doran Moppert
Modified:	2016-10-18 00:58 EDT (History)
CC List:	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 MTREE file could cause a limited out-of-bounds read, potentially disclosing contents of application memory.
Story Points:	---
Clone Of:
Environment:
Last Closed:	2016-10-18 00:58:42 EDT
Type:	---
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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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

Groups: None (edit)

Description Doran Moppert 2016-06-21 03:14:42 EDT

Upstream bug:
    https://github.com/libarchive/libarchive/issues/550

Upstream fix:
    https://github.com/libarchive/libarchive/commit/64d5628

> The mtree parser scanned from the end of the string to identify
> the filename when the filename is the last element of the line.
> If the filename was the entire line, the logic would scan back
> to before the start of the string.

libarchive-2.8 does not include support for this mtree variant.

Comment 2 Doran Moppert 2016-07-05 00:37:42 EDT

Created libarchive tracking bugs for this issue:

Affects: fedora-all [bug 1352776]

Comment 5 errata-xmlrpc 2016-09-12 16:14:11 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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