What’s Vulnerable › Vulnerabilities
CVE-2023-5371: Memory Allocation with Excessive Size Value in Wireshark
- Severity: medium (CVSS 6.5 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.5% probability of exploitation in the next 30 days
- Public exploit or detection template: yes
- Published: 2023-10-04 · updated 2026-06-17
- Weakness: CWE-789
Description
RTPS dissector memory leak in Wireshark 4.0.0 to 4.0.8 and 3.6.0 to 3.6.16 allows denial of service via packet injection or crafted capture file
Affected products
- Wireshark Foundation Wireshark: from 3.6.0 before 3.6.17; from 4.0.0 before 4.0.9 — fixed in 3.6.17, 4.0.9
How to fix
Upgrade to a fixed version: Wireshark Foundation Wireshark 3.6.17, 4.0.9. Check the vendor advisory for mitigations.
References
- https://gitlab.com/wireshark/wireshark/-/issues/19322
- https://www.wireshark.org/security/wnpa-sec-2023-27.html
- https://gitlab.com/wireshark/wireshark/-/issues/19322
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/34DBP5P2RHQ7XUABPANYYMOGV5KS6VEP/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/MADSCHKZSCKQ5NLIX3UMOIJD2JZ65L4V/
- https://security.gentoo.org/glsa/202402-09
- https://www.wireshark.org/security/wnpa-sec-2023-27.html
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