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Last updated: 9/30/2014 3:50:38 PM

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National Cyber Awareness System

Vulnerability Summary for CVE-2013-4397

Original release date: 10/17/2013
Last revised: 12/19/2013
Source: US-CERT/NIST

Overview

Multiple integer overflows in the th_read function in lib/block.c in libtar before 1.2.20 allow remote attackers to cause a denial of service (crash) and possibly execute arbitrary code via a long (1) name or (2) link in an archive, which triggers a heap-based buffer overflow.

Impact

CVSS Severity (version 2.0):
CVSS v2 Base Score: 6.8 (MEDIUM) (AV:N/AC:M/Au:N/C:P/I:P/A:P) (legend)
Impact Subscore: 6.4
Exploitability Subscore: 8.6
CVSS Version 2 Metrics:
Access Vector: Network exploitable; Victim must voluntarily interact with attack mechanism
Access Complexity: Medium
Authentication: Not required to exploit
Impact Type: Allows unauthorized disclosure of information; Allows unauthorized modification; Allows disruption of service

References to Advisories, Solutions, and Tools

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External Source: REDHAT
Name: RHSA-2013:1418
Type: Advisory
External Source: DEBIAN
Name: DSA-2817
External Source: CONFIRM
Name: http://repo.or.cz/w/libtar.git/commitdiff/45448e8bae671c2f7e80b860ae0fc0cedf2bdc04
Type: Patch Information; Exploit
External Source: SECUNIA
Name: 55188
Type: Advisory
External Source: MLIST
Name: [libtar] 20131009 ANNOUNCE: libtar version 1.2.20
External Source: MLIST
Name: [oss-security] 20131010 Integer overflow in libtar (<= 1.2.19)
External Source: SECTRACK
Name: 1029166
External Source: MLIST
Name: [oss-security] 20131010 Re: Integer overflow in libtar (<= 1.2.19)
External Source: SECUNIA
Name: 55253
Type: Advisory
External Source: BID
Name: 62922

Technical Details

Vulnerability Type (View All)