CVE-2016-6321

high

Description

Directory traversal vulnerability in the safer_name_suffix function in GNU tar 1.14 through 1.29 might allow remote attackers to bypass an intended protection mechanism and write to arbitrary files via vectors related to improper sanitization of the file_name parameter, aka POINTYFEATHER.

References

Advisories
More

https://sintonen.fi/advisories/tar-extract-pathname-bypass.proper.txt

https://security.gentoo.org/glsa/201611-19

http://www.ubuntu.com/usn/USN-3132-1

http://www.securityfocus.com/bid/93937

http://www.debian.org/security/2016/dsa-3702

http://seclists.org/fulldisclosure/2016/Oct/96

http://seclists.org/fulldisclosure/2016/Oct/102

https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E

https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E

http://packetstormsecurity.com/files/139370/GNU-tar-1.29-Extract-Pathname-Bypass.html

http://lists.gnu.org/archive/html/bug-tar/2016-10/msg00016.html

http://git.savannah.gnu.org/cgit/tar.git/commit/?id=7340f67b9860ea0531c1450e5aa261c50f67165d

Details

Source: Mitre, NVD

Published: 2016-12-09

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:N

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N

Severity: High

EPSS

EPSS: 0.06845