CVE-2017-17997 — NULL Pointer Dereference in Wireshark

CWE-476 — NULL Pointer DereferenceCWE-20 — Improper Input Validation7 documents6 sources
Severity
7.5HIGHNVD
EPSS
0.7%
top 27.93%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
WiresharkDebian WiresharkDebian Linux
Timeline
PublishedDec 30
Latest updateMay 14

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 vector

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages3 packages

▶debiandebian/wireshark< wireshark 2.4.0-1 (bookworm)
▶Debianwireshark/wireshark< 2.4.0-1+3

Also affects: Debian Linux 8.0

Patches

Patch: bugs.wireshark.org ↗Patch: code.wireshark.org ↗Patch: bugs.wireshark.org ↗

🔴Vulnerability Details

2
GHSA
GHSA-rc73-pc24-f3rr: In Wireshark before 2↗2022-05-14
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OSV
CVE-2017-17997: In Wireshark before 2↗2017-12-30
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📋Vendor Advisories

2
Red Hat
wireshark: Misuse of NULL pointer in MRDISC dissector↗2017-12-29
▶
Debian
CVE-2017-17997: wireshark - In Wireshark before 2.2.12, the MRDISC dissector misuses a NULL pointer and cras...↗2017
▶

💬Community

2
Bugzilla
CVE-2017-17997 wireshark: Misuse of NULL pointer in MRDISC dissector↗2018-01-04
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Bugzilla
CVE-2017-17997 wireshark: Misuse of NULL pointer in MRDISC dissector [fedora-all]↗2018-01-04
▶