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CVE-2016-6321

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Date: December 9, 2016

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.

Language: C

Severity Score

Related Resources (17)

http://www.debian.org/security/2016/dsa-3702
http://git.savannah.gnu.org/cgit/tar.git/commit/?id=7340f67b9860ea0531c1450e5aa261c50f67165d
https://people.canonical.com/~ubuntu-security/cve/CVE-2016-6321
https://nvd.nist.gov/vuln/detail/CVE-2016-6321
https://access.redhat.com/security/cve/CVE-2016-6321
https://security-tracker.debian.org/tracker/CVE-2016-6321
http://seclists.org/fulldisclosure/2016/Oct/102
http://lists.gnu.org/archive/html/bug-tar/2016-10/msg00016.html
https://lists.apache.org/thread.html/rf4c02775860db415b4955778a131c2795223f61cb8c6a450893651e4%40%3Cissues.bookkeeper.apache.org%3E
http://packetstormsecurity.com/files/139370/GNU-tar-1.29-Extract-Pathname-Bypass.html
https://security.gentoo.org/glsa/201611-19
http://seclists.org/fulldisclosure/2016/Oct/96
https://lists.apache.org/thread.html/r58af02e294bd07f487e2c64ffc0a29b837db5600e33b6e698b9d696b%40%3Cissues.bookkeeper.apache.org%3E
http://www.ubuntu.com/usn/USN-3132-1
http://www.securityfocus.com/bid/93937
https://sintonen.fi/advisories/tar-extract-pathname-bypass.proper.txt
https://www.mend.io/vulnerability-database/CVE-2016-6321

Severity Score

Weakness Type (CWE)

Path Traversal

CWE-22

Top Fix

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CVSS v3.1

Base Score:
Attack Vector (AV): NETWORK
Attack Complexity (AC): LOW
Privileges Required (PR): NONE
User Interaction (UI): NONE
Scope (S): UNCHANGED
Confidentiality (C): NONE
Integrity (I): HIGH
Availability (A): NONE

CVSS v2

Base Score:
Access Vector (AV): NETWORK
Access Complexity (AC): LOW
Authentication (AU): NONE
Confidentiality (C): NONE
Integrity (I): PARTIAL
Availability (A): NONE
Additional information:

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