VulnerabilityModified
CVE-2018-14340
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.
HIGH 7.5EPSS 3.45%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (3.45%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a 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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 3.45% probability · 88th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-125
- Affected
- wireshark/wireshark · debian/debian linux
- Source
- cve@mitre.org
References
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
- http://www.securityfocus.com/bid/104847Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041608Third Party Advisory, VDB Entry
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14675Exploit, Issue Tracking, Vendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=672d882a53f96730e4ef1e5b1639c585823b0df8
- https://lists.debian.org/debian-lts-announce/2018/07/msg00045.htmlMailing List, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2018-36.htmlVendor Advisory
- http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
- http://www.securityfocus.com/bid/104847Third Party Advisory, VDB Entry
- http://www.securitytracker.com/id/1041608Third Party Advisory, VDB Entry
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14675Exploit, Issue Tracking, Vendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=672d882a53f96730e4ef1e5b1639c585823b0df8
- https://lists.debian.org/debian-lts-announce/2018/07/msg00045.htmlMailing List, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2018-36.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.