Release of Invalid Pointer or Reference Affecting wireshark package, versions <2.6.3-1~ubuntu14.04.1
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.
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Test your applications- Snyk IDSNYK-UBUNTU1404-WIRESHARK-377277
- published2 Dec 2018
- disclosed8 Feb 2018
Introduced: 8 Feb 2018
CVE-2018-6836 (opens in a new tab)How to fix?
Upgrade Ubuntu:14.04 wireshark to version 2.6.3-1~ubuntu14.04.1 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 Ubuntu.
See How to fix? for Ubuntu:14.04 relevant fixed versions and status.
The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers to cause a denial of service (application crash) or possibly have unspecified other impact.
References
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-6836
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397
- https://code.wireshark.org/review/#/c/25660/
- https://code.wireshark.org/review/#/c/25660/2/wiretap/netmon.c
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=28960d79cca262ac6b974f339697b299a1e28fef
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=28960d79cca262ac6b974f339697b299a1e28fef