Vulnerability 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.
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Gnu | Tar | 1.14 |
Related Weaknesses (CWE)
References
- http://git.savannah.gnu.org/cgit/tar.git/commit/?id=7340f67b9860ea0531c1450e5aa2Issue TrackingPatch
- http://lists.gnu.org/archive/html/bug-tar/2016-10/msg00016.htmlMailing ListVendor Advisory
- http://packetstormsecurity.com/files/139370/GNU-tar-1.29-Extract-Pathname-BypassExploitThird Party AdvisoryVDB Entry
- http://seclists.org/fulldisclosure/2016/Oct/102Mailing ListPatchThird Party Advisory
- http://seclists.org/fulldisclosure/2016/Oct/96Mailing ListThird Party Advisory
- http://www.debian.org/security/2016/dsa-3702
- http://www.securityfocus.com/bid/93937Third Party AdvisoryVDB Entry
- http://www.ubuntu.com/usn/USN-3132-1
- https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e3
- https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8
- https://security.gentoo.org/glsa/201611-19
- https://sintonen.fi/advisories/tar-extract-pathname-bypass.proper.txtThird Party Advisory
- http://git.savannah.gnu.org/cgit/tar.git/commit/?id=7340f67b9860ea0531c1450e5aa2Issue TrackingPatch
- http://lists.gnu.org/archive/html/bug-tar/2016-10/msg00016.htmlMailing ListVendor Advisory
- http://packetstormsecurity.com/files/139370/GNU-tar-1.29-Extract-Pathname-BypassExploitThird Party AdvisoryVDB Entry
FAQ
What is CVE-2016-6321?
CVE-2016-6321 is a vulnerability with a CVSS score of 7.5 (HIGH). 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 vi...
How severe is CVE-2016-6321?
CVE-2016-6321 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-6321?
Check the references section above for vendor advisories and patch information. Affected products include: Gnu Tar.