CVE-2016-6321
High
CVE-2016-6321
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.
Exploit probability
15.2%
Published
December 9, 2016
Required by
Not available
Last source change
August 19, 2026
02 / AFFECTED SOFTWARE
Affected packages
42 explicit affected versions
03 / CONNECTIONS
Connected vulnerabilities
04 / EVIDENCE
Source records
Open Source Vulnerabilities
CVE-2016-6321
View original source
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.
05 / REFERENCES
Further evidence
- http://git.savannah.gnu.org/cgit/tar.git/commit/?id=7340f67b9860ea0531c1450e5aa261c50f67165d
- http://lists.gnu.org/archive/html/bug-tar/2016-10/msg00016.html
- http://packetstormsecurity.com/files/139370/GNU-tar-1.29-Extract-Pathname-Bypass.html
- http://seclists.org/fulldisclosure/2016/Oct/102
- http://seclists.org/fulldisclosure/2016/Oct/96
- http://www.debian.org/security/2016/dsa-3702
- http://www.securityfocus.com/bid/93937
- http://www.ubuntu.com/usn/USN-3132-1
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
- https://security.gentoo.org/glsa/201611-19
- https://sintonen.fi/advisories/tar-extract-pathname-bypass.proper.txt