VulnerabilityModified
CVE-2017-17997
In Wireshark before 2.2.12, the MRDISC dissector misuses a NULL pointer and crashes.
HIGH 7.5EPSS 1.78%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.78%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 3.0
- 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.78% probability · 77th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-476
- Affected
- wireshark/wireshark · debian/debian linux
- Source
- cve@mitre.org
References
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299Issue Tracking, Patch, Vendor Advisory
- https://code.wireshark.org/review/#/c/25063/Issue Tracking, Patch, Vendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=80a695869c9aef2fb473d9361da068022be7cb50
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.htmlMailing List, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2018-02.htmlVendor Advisory
- https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=14299Issue Tracking, Patch, Vendor Advisory
- https://code.wireshark.org/review/#/c/25063/Issue Tracking, Patch, Vendor Advisory
- https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=80a695869c9aef2fb473d9361da068022be7cb50
- https://lists.debian.org/debian-lts-announce/2019/01/msg00010.htmlMailing List, Third Party Advisory
- https://www.wireshark.org/security/wnpa-sec-2018-02.htmlVendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.