NULL Pointer Dereference Affecting wireshark package, versions <1.12.1+g01b65bf-4+deb8u8
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
Do your applications use this vulnerable package?
In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.
Test your applicationsSnyk Learn
Learn about NULL Pointer Dereference vulnerabilities in an interactive lesson.
Start learning- Snyk IDSNYK-DEBIAN8-WIRESHARK-377189
- published6 Aug 2016
- disclosed6 Aug 2016
Introduced: 6 Aug 2016
CVE-2016-6504 (opens in a new tab)How to fix?
Upgrade Debian:8 wireshark to version 1.12.1+g01b65bf-4+deb8u8 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wireshark package and not the wireshark package as distributed by Debian.
See How to fix? for Debian:8 relevant fixed versions and status.
epan/dissectors/packet-ncp2222.inc in the NDS dissector in Wireshark 1.12.x before 1.12.13 does not properly maintain a ptvc data structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a crafted packet.
References
- https://security-tracker.debian.org/tracker/CVE-2016-6504
- http://www.debian.org/security/2016/dsa-3648
- https://www.exploit-db.com/exploits/40194/
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=12576
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=9eacbb4d48df647648127b9258f9e5aeeb0c7d99
- http://openwall.com/lists/oss-security/2016/07/28/3
- http://www.securityfocus.com/bid/92164
- http://www.securitytracker.com/id/1036480
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2016-6504
- http://www.wireshark.org/security/wnpa-sec-2016-40.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=9eacbb4d48df647648127b9258f9e5aeeb0c7d99