Home/CVE/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
CVE

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

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.

HIGH · CVSS 7.5 EPSS 0.01095
Act now
  • Public exploit or PoC is available
  • CVSS base score ≥ 7.0
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-125Out-of-bounds Read
▤

Affected Products & Versions

4
wireshark>= 2.2.0 and <= 2.2.15
wireshark>= 2.4.0 and <= 2.4.7
wireshark>= 2.6.0 and <= 2.6.1
debian linuxall versions
⚠

Public Exploits & PoCs

1
pocbugs.wireshark.org · show_bug.cgi?id=14675bugs.wireshark.org
▣

Scoring & Timeline

7.5
HIGH · CVSS v3.0 · cve@mitre.org
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD19 Jul 2018 · 02:29 AM
CVSS VectorCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
⚑

Vendor Advisories

8
suse-csafopenSUSE-SU-2024:11513-1
suse-csafSUSE-SU-2020:0693-1
suse-csafopenSUSE-SU-2020:0362-1
rhsaRHSA-2020:1047Low
suse-csafSUSE-SU-2018:2891-2
🔗

References & Sources

6
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
http://lists.opensuse.org/opensuse-security-announce/2020-03/msg00027.html
http://www.securityfocus.com/bid/104847Third Party AdvisoryVDB Entry
http://www.securitytracker.com/id/1041608Third Party AdvisoryVDB Entry
https://code.wireshark.org/review/gitweb?p=wireshark.git
https://lists.debian.org/debian-lts-announce/2018/07/msg00045.htmlMailing ListThird Party Advisory
https://www.wireshark.org/security/wnpa-sec-2018-36.htmlVendor Advisory
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