CVE-2020-17498

MEDIUM

Wireshark 3.2.0-3.2.5 - Use After Free

Title source: llm

Description

In Wireshark 3.2.0 to 3.2.5, the Kafka protocol dissector could crash. This was addressed in epan/dissectors/packet-kafka.c by avoiding a double free during LZ4 decompression.

References (9)

[Patch] https://code.wireshark.org/review/gitweb?p=wireshark.git%3Ba=commit%3Bh=76afda963de4f0b9be24f2d8e873990a5cbf221b

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00035.html

[Mailing List, Third Party Advisory] http://lists.opensuse.org/opensuse-security-announce/2020-11/msg00038.html

[Exploit, Issue Tracking, Patch, Vendor Advisory] https://bugs.wireshark.org/bugzilla/show_bug.cgi?id=16672

[Third Party Advisory] https://security.gentoo.org/glsa/202008-14

[Patch, Third Party Advisory] https://www.oracle.com/security-alerts/cpujan2021.html

[Vendor Advisory] https://www.wireshark.org/security/wnpa-sec-2020-10.html

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AII7UYDPNKYE75AZL45M6HAV2COP7F6S/

[Mailing List, Third Party Advisory] https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G7LO7DAPN33FL4JQ7DDPB76SIEFGMZSQ/

Scores

CVSS v3 6.5

EPSS 0.0023

EPSS Percentile 45.6%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Classification

CWE

CWE-415

Status published

Affected Products (6)

wireshark/wireshark < 3.2.6

fedoraproject/fedora

opensuse/leap

oracle/zfs_storage_appliance_kit

Timeline

Published Aug 13, 2020

Tracked Since Feb 18, 2026