What’s Vulnerable › Vulnerabilities

CVE-2017-17997

• Severity: high (CVSS 7.5 v3.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 1.8% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2017-12-30 · updated 2026-06-17
• Weakness: CWE-476

Description

In Wireshark before 2.2.12, the MRDISC dissector misuses a NULL pointer and crashes. This was addressed in epan/dissectors/packet-mrdisc.c by validating an IPv4 address. This vulnerability is similar to CVE-2017-9343.

Affected products

• Debian Linux: 8.0
• Wireshark Foundation Wireshark: through 2.2.11

References

• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299
• https://code.wireshark.org/review/#/c/25063/
• https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=80a695869c9aef2fb473d9361da068022be7cb50
• https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
• https://www.wireshark.org/security/wnpa-sec-2018-02.html
• https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299
• https://code.wireshark.org/review/#/c/25063/
• https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=80a695869c9aef2fb473d9361da068022be7cb50
• https://lists.debian.org/debian-lts-announce/2019/01/msg00010.html
• https://www.wireshark.org/security/wnpa-sec-2018-02.html

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