Improper Input Validation Affecting wireshark package, versions <2.4.6-1
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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Start learning- Snyk IDSNYK-DEBIAN9-WIRESHARK-377034
- published4 Apr 2018
- disclosed4 Apr 2018
Introduced: 4 Apr 2018
CVE-2018-9256 (opens in a new tab)How to fix?
Upgrade Debian:9 wireshark to version 2.4.6-1 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 Debian.
See How to fix? for Debian:9 relevant fixed versions and status.
In Wireshark 2.4.0 to 2.4.5 and 2.2.0 to 2.2.13, the LWAPP dissector could crash. This was addressed in epan/dissectors/packet-lwapp.c by limiting the encapsulation levels to restrict the recursion depth.
References
- https://security-tracker.debian.org/tracker/CVE-2018-9256
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-9256
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14467
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=dac48f148538c706c446e5105d84ebcb54587528
- http://people.ubuntu.com/~ubuntu-security/cve/CVE-2018-9256
- https://www.wireshark.org/security/wnpa-sec-2018-20.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=dac48f148538c706c446e5105d84ebcb54587528