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Vulnerability DatabaseCVE-2020-9430
CVE-2020-9430:
Wireshark vulnerability analysis and mitigation
Overview
CVE-2020-9430 affects Wireshark versions 3.2.0 to 3.2.1, 3.0.0 to 3.0.8, and 2.6.0 to 2.6.14, where the WiMax DLMAP dissector could crash. The vulnerability was discovered and disclosed on February 26, 2020, and was addressed in plugins/epan/wimax/msg_dlmap.c by validating a length field (Wireshark Advisory, CVE Details).
Technical details
The vulnerability exists in the WiMax DLMAP dissector component of Wireshark, which could lead to a crash due to improper length field validation. The issue was tracked as Wireshark bug #16368 and was fixed in versions 3.2.2, 3.0.9, and 2.6.15 (Wireshark Advisory).
Impact
The vulnerability could allow an attacker to cause a Denial of Service condition by either injecting a malformed packet onto the wire or by convincing a user to read a malformed packet trace file (Wireshark Advisory, Gentoo Security).
Mitigation and workarounds
Users are advised to upgrade to Wireshark versions 3.2.2, 3.0.9, 2.6.15 or later. The fix involves proper validation of length fields in the WiMax DLMAP dissector (Wireshark Advisory, Debian LTS).
Additional resources
Source: This report was generated using AI
Related Wireshark vulnerabilities:
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