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Date: Mon, 22 Dec 2014 15:09:49 +0100
From: Andrea Barisani <lcars@...rt.org>
To: oss-security@...ts.openwall.com, ocert-announce@...ts.ocert.org,
bugtraq@...urityfocus.com
Subject: [oCERT-2014-011] UnZip input sanitization errors
#2014-011 UnZip input sanitization errors
Description:
The UnZip tool is an open source extraction utility for archives compressed in
the zip format.
The unzip command line tool is affected by heap-based buffer overflows within
the CRC32 verification, the test_compr_eb() and the getZip64Data() functions.
The input errors may result in in arbitrary code execution.
A specially crafted zip file, passed to unzip -t, can be used to trigger the
vulnerability.
Affected version:
UnZip <= 6.0
Fixed version:
UnZip, N/A
Credit: vulnerability report received from the Google Security Team.
CVE: CVE-2014-8139 (CRC32 heap overflow), CVE-2014-8140 (test_compr_eb),
CVE-2014-8141 (getZip64Data)
Timeline:
2014-12-03: vulnerability report received
2014-12-03: contacted maintainer
2014-12-03: first patch provided by maintainer
2014-12-04: report provides additional reproducers
2014-12-03: second patch provided by maintainer
2014-12-04: reporter confirms patch
2014-12-10: contacted affected vendors
2014-12-12: assigned CVEs
2014-12-22: advisory release
References:
http://www.info-zip.org/UnZip.html
Permalink:
http://www.ocert.org/advisories/ocert-2014-011.html
--
Andrea Barisani | Founder & Project Coordinator
oCERT | OSS Computer Security Incident Response Team
<lcars@...rt.org> http://www.ocert.org
0x864C9B9E 0A76 074A 02CD E989 CE7F AC3F DA47 578E 864C 9B9E
"Pluralitas non est ponenda sine necessitate"
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