Use After Free in Wireshark

CVE-2018-11358

In Wireshark 2.6.0, 2.4.0 to 2.4.6, and 2.2.0 to 2.2.14, the Q.931 dissector could crash. This was addressed in epan/dissectors/packet-q931.c by avoiding a use-after-free after a malformed packet prevented certain cleanup.

Vulnerability class: Use-After-Free

EPSS: 0.028 (85.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-11358?
CVE-2018-11358 is a high-severity vulnerability in Wireshark, classified under Use After Free. CVSS score: 7.5/10. Published 2018-05-22.
How severe is CVE-2018-11358?
High severity. CVSS v3 base score is 7.5 out of 10.