What is CVE-2018-6836?

CVE-2018-6836 is a critical-severity vulnerability in Wireshark, classified under Release of Invalid Pointer or Reference. CVSS score: 9.8/10. Published 2018-02-08.

How severe is CVE-2018-6836?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Vulnerability in Wireshark

CVE-2018-6836

The netmonrec_comment_destroy function in wiretap/netmon.c in Wireshark through 2.4.4 performs a free operation on an uninitialized memory address, which allows remote attackers to cause a denial of service (application crash) or possibly…

EPSS: 0.027 (84.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Wireshark
N/a — versions n/a

Weakness classification (CWE)

CWE-763 — Release of Invalid Pointer or Reference

References

cve@mitre.org (Patch, x_refsource_MISC)
cve@mitre.org (x_refsource_MISC)
cve@mitre.org (Exploit, Third Party Advisory, x_refsource_MISC, Issue Tracking)
cve@mitre.org (Patch, x_refsource_MISC, Issue Tracking)

Frequently asked questions

What is CVE-2018-6836?: CVE-2018-6836 is a critical-severity vulnerability in Wireshark, classified under Release of Invalid Pointer or Reference. CVSS score: 9.8/10. Published 2018-02-08.
How severe is CVE-2018-6836?: Critical severity. CVSS v3 base score is 9.8 out of 10.