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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