Vulnerability CVE-2013-4420
Published: 2014-02-20

Description:
Multiple directory traversal vulnerabilities in the (1) tar_extract_glob and (2) tar_extract_all functions in libtar 1.2.20 and earlier allow remote attackers to overwrite arbitrary files via a .. (dot dot) in a crafted tar file.

Type:

CWE-22

 (Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'))

CVSS2 => (AV:N/AC:M/Au:N/C:N/I:P/A:P)

CVSS Base Score
Impact Subscore
Exploitability Subscore
5.8/10
4.9/10
8.6/10
Exploit range
Attack complexity
Authentication
Remote
Medium
No required
Confidentiality impact
Integrity impact
Availability impact
None
Partial
Partial
Affected software
FEEP -> Libtar 

 References:
https://lists.feep.net:8080/pipermail/libtar/2014-February/000403.html
https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=731860
http://www.debian.org/security/2014/dsa-2863
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