CVE-2018-7420
First published: Fri Feb 23 2018(Updated: )
In Wireshark 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4, the pcapng file parser could crash. This was addressed in wiretap/pcapng.c by adding a block-size check for sysdig event blocks.
Credit: cve@mitre.org
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Wireshark Wireshark | >=2.2.0<=2.2.12 | |
| Wireshark Wireshark | >=2.4.0<=2.4.4 | |
| Debian GNU/Linux | =7.0 | |
| Debian GNU/Linux | =8.0 |
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Reference Links
- http://www.securityfocus.com/bid/103163
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14403
- https://code.wireshark.org/review/gitweb?p=wireshark.git;a=commit;h=129e41f9f63885ad8224ef413c2860788fb9e849
- https://lists.debian.org/debian-lts-announce/2018/04/msg00018.html
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
- https://www.wireshark.org/security/wnpa-sec-2018-11.html
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=129e41f9f63885ad8224ef413c2860788fb9e849
Frequently Asked Questions
What is the severity of CVE-2018-7420?
CVE-2018-7420 has been classified with moderate severity due to its potential to crash the application.
How do I fix CVE-2018-7420?
To fix CVE-2018-7420, update Wireshark to a version that is not affected, specifically 2.2.13 or 2.4.5 and later.
Which versions of Wireshark are impacted by CVE-2018-7420?
CVE-2018-7420 affects Wireshark versions 2.2.0 to 2.2.12 and 2.4.0 to 2.4.4.
What type of vulnerability is CVE-2018-7420?
CVE-2018-7420 is a denial-of-service vulnerability due to flaws in the pcapng file parser.
Does CVE-2018-7420 affect any operating systems?
Yes, CVE-2018-7420 affects Debian GNU/Linux versions 7.0 and 8.0 when using the vulnerable Wireshark versions.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/severity
- agent/author
- agent/remedy
- agent/last-modified-date
- agent/event
- agent/description
- agent/first-publish-date
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/wireshark
- canonical/wireshark wireshark
- version/wireshark wireshark/2.2.0
- version/wireshark wireshark/2.2.12
- version/wireshark wireshark/2.4.0
- version/wireshark wireshark/2.4.4
- vendor/debian
- canonical/debian gnu/linux
- version/debian gnu/linux/7.0
- version/debian gnu/linux/8.0