Memory corruption in Wireshark - CVE-2018-7420

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Main Vulnerability Database Vulnerabilities #VU10767

Memory corruption in Wireshark - CVE-2018-7420

Published: February 27, 2018


Vulnerability identifier: #VU10767
CSH Severity: Low
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
CVE-ID: CVE-2018-7420
CWE-ID: CWE-119
Exploitation vector: Remote access
Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to boundary error in in wiretap/pcapng.c due to when checking for sysdig event blocks. A remote attacker can cause the pcapng file parser to crash.


Affected software

Wireshark
wireshark (Alpine package)
wireshark
Fedora

How to mitigate CVE-2018-7420

Update to version 2.2.13, 2.4.5.

wireshark (Alpine package) - update to 2.2.15-r0
wireshark - addressed in versions 2.4.5-1.fc27, 2.4.5-1.fc28, 2.4.5-2.fc27, 2.4.5-2.fc28, 2.4.5-3.fc27, 2.4.5-3.fc28

External References

Related Security Bulletins