CVE-2018-14340

Public Exploit

Description

In Wireshark 2.6.0 to 2.6.1, 2.4.0 to 2.4.7, and 2.2.0 to 2.2.15, dissectors that support zlib decompression could crash. This was addressed in epan/tvbuff_zlib.c by rejecting negative lengths to avoid a buffer over-read.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 0.71% Top 30%
Vendor Advisory opensuse.org Vendor Advisory wireshark.org Vendor Advisory wireshark.org
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14675 issue tracking exploit vendor advisory
https://www.wireshark.org/security/wnpa-sec-2018-36.html vendor advisory
http://www.securitytracker.com/id/1041608 vdb entry third party advisory
https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=672d882a53f96730e4ef1e5b1639c585823b0df8
https://lists.debian.org/debian-lts-announce/2018/07/msg00045.html third party advisory mailing list
http://www.securityfocus.com/bid/104847 vdb entry third party advisory
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html vendor advisory

Frequently Asked Questions

What is the severity of CVE-2018-14340?
CVE-2018-14340 has been scored as a high severity vulnerability.
How to fix CVE-2018-14340?
To fix CVE-2018-14340, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2018-14340 being actively exploited in the wild?
It is possible that CVE-2018-14340 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~1% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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