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 have…
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (2.72%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
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 have unspecified other impact.
- CVSS 3.0
- 9.8 CRITICALCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 2.72% probability · 85th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-763
- Affected
- wireshark/wireshark
- Source
- cve@mitre.org
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397Exploit, Issue Tracking, Third Party Advisory
- https://code.wireshark.org/review/#/c/25660/Issue Tracking, Patch
- https://code.wireshark.org/review/#/c/25660/2/wiretap/netmon.cPatch
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=28960d79cca262ac6b974f339697b299a1e28fef
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397Exploit, Issue Tracking, Third Party Advisory
- https://code.wireshark.org/review/#/c/25660/Issue Tracking, Patch
- https://code.wireshark.org/review/#/c/25660/2/wiretap/netmon.cPatch
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=28960d79cca262ac6b974f339697b299a1e28fef
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.