CVE-2018-14340 — Out-of-bounds Read in Wireshark

CWE-125 — Out-of-bounds ReadCWE-20 — Improper Input Validation7 documents6 sources
Severity
7.5HIGHNVD
EPSS
0.8%
top 25.97%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
WiresharkDebian WiresharkDebian Linux
Timeline
PublishedJul 19
Latest updateMay 13

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 vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/wireshark< wireshark 2.6.2-1 (bookworm)
▶Debianwireshark/wireshark< 2.6.2-1+3
▶NVDwireshark/wireshark2.2.0 — 2.2.15+2

Also affects: Debian Linux 8.0

🔴Vulnerability Details

2
GHSA
GHSA-5mf4-rfcc-fxpq: In Wireshark 2↗2022-05-13
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OSV
CVE-2018-14340: In Wireshark 2↗2018-07-19
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📋Vendor Advisories

2
Red Hat
wireshark: Multiple dissectors could crash (wnpa-sec-2018-36)↗2018-07-18
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Debian
CVE-2018-14340: wireshark - 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 tha...↗2018
▶

💬Community

2
Bugzilla
CVE-2018-14340 wireshark: Multiple dissectors could crash (wnpa-sec-2018-36)↗2018-07-23
▶
Bugzilla
CVE-2018-14339 CVE-2018-14340 CVE-2018-14341 CVE-2018-14342 CVE-2018-14343 CVE-2018-14344 CVE-2018-14367 CVE-2018-14368 CVE-2018-14369 CVE-2018-14370 wireshark: various flaws [fedora-all]↗2018-07-23
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