CVE-2018-7420: High severity Wireshark Wireshark vulnerability
Published 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.
Affected Software
4 affected components
Wireshark Wireshark>=2.2.0<=2.2.12
Wireshark Wireshark>=2.4.0<=2.4.4
Debian Debian Linux=7.0
Debian Debian Linux=8.0
Remediation
Event History
Feb 23, 2018
CVE Published
via MITRE·10:00 PM
Data Sourced
via MITRE·10:00 PM
Description
Data Sourced
via NVD·10:29 PM
DescriptionSeverityAffected Software
Frequently Asked Questions
1
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.
2
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.
3
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.
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.
5
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.