Critical severity · published Feb 8, 2018
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…
9.8
CVSS
2.7%
EPSS
No
On KEV
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 vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)2.7% · higher than 86% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
WI
Wireshark · Wireshark
through 2.4.4 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2018-6836
CVE.org
https://www.cve.org/CVERecord?id=CVE-2018-6836
Exploit
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14397
Issue Tracking
https://code.wireshark.org/review/#/c/25660/
Patch
https://code.wireshark.org/review/#/c/25660/2/wiretap/netmon.c
code.wireshark.org
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=28960d79cca262ac6b974f339697b299a1e28fef
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