PT-2020-16424 · Wireshark+2 · Wireshark+2

Published 2020-12-11 · Updated 2024-06-15 · CVE-2020-26420

Positive Technologies (AI Summary)

CVSS v3.1

5.3

Medium

Base vector

AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Name of the Vulnerable Software and Affected Versions Wireshark versions 3.2.0 through 3.2.8 Wireshark version 3.4.0

Description A memory leak in the RTPS protocol dissector allows for denial of service via packet injection or crafted capture file. This issue can be exploited by injecting packets or using a specially crafted capture file, leading to a denial of service.

Recommendations For Wireshark versions 3.2.0 through 3.2.8, update to a version that fixes the memory leak issue in the RTPS protocol dissector. For Wireshark version 3.4.0, update to a version that fixes the memory leak issue in the RTPS protocol dissector. As a temporary workaround, consider disabling the RTPS protocol dissector until a patch is available.

Exploit

Fix

DoS

Memory Leak

Weakness Enumeration

CWE-401

Related Identifiers

ALT-PU-2021-1028

ALT-PU-2021-1068

ALT-PU-2022-1368

CVE-2020-26420

OPENSUSE-SU-2021:0909-1

OPENSUSE-SU-2021:2125-1

OPENSUSE-SU-2021_0909-1

OPENSUSE-SU-2021_2125-1

OPENSUSE-SU-2024:11513-1

SUSE-SU-2021:2125-1

Affected Products

Alt Linux

Suse

Wireshark

References · 208

• 🔥 https://gitlab.com/wireshark/wireshark/-/issues/16994 · Exploit
• https://security-tracker.debian.org/tracker/CVE-2020-26420 · Vendor Advisory
• https://oracle.com/security-alerts/cpuApr2021.html · Patch
• https://osv.dev/vulnerability/DEBIAN-CVE-2020-26420 · Vendor Advisory
• https://ubuntu.com/security/CVE-2020-26420 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-26420 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-26420 · Vendor Advisory
• https://wireshark.org/security/wnpa-sec-2020-18.html · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0909-1 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-26420 · Vendor Advisory
• https://security.gentoo.org/glsa/202101-12 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-26420 · Security Note
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YHWDZPWQJMLK64VFDWJC5SEGPNH6Y72Z · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2021:2125-1 · Vendor Advisory