vulnwire
9.8crit

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…

Published 8 y ago · modified 4 mo ago · JSON

CVSS
9.8
v3.0 · NVD
CISA KEV
No
not known exploited
EPSS
2.7%
percentile 86%
Public exploits
0
none known

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.

Exploit prediction (EPSS)

2.72% probability of exploitation in the next 30 days, higher than 86% of all scored CVEs.

CVSS scores

Assigned byVersionScoreVector
NVD3.09.8CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD2.07.5AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness
  • CWE-763 Release of Invalid Pointer or Reference

References

  • code.wireshark.org /review/#/c/25660/2/wiretap/netmon.c · x_refsource_MISC, x_transferred
  • code.wireshark.org /review/gitweb?p=wireshark.git%3Ba=commit%3Bh=28960d79cca262ac6b974f339697b299a1e28fef · x_refsource_MISC, x_transferred
  • bugs.wireshark.org /bugzilla/show_bug.cgi?id=14397 · x_refsource_MISC, x_transferred
  • code.wireshark.org /review/#/c/25660/ · x_refsource_MISC, x_transferred

Sources

vulnwire keeps one entry per vulnerability: the CVE id wins, then GHSA; records that alias each other are merged. Machine-readable: JSON.