PT-2020-6562 · Wireshark+3 · Wireshark+3

Published 2020-12-11 · Updated 2024-09-19 · CVE-2020-26421

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 flaw in the USB HID protocol dissector and possibly other dissectors in Wireshark allows a Denial of Service via packet injection or a crafted capture file. The vulnerability is related to reading beyond the boundaries of a data buffer, which can be exploited by a remote attacker to cause a denial of service.

Recommendations For Wireshark versions 3.2.0 through 3.2.8, consider disabling the USB HID protocol dissector until a patch is available. For Wireshark version 3.4.0, consider disabling the USB HID protocol dissector until a patch is available. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

Exploit

DoS

Out of bounds Read

Weakness Enumeration

CWE-125

Related Identifiers

ALT-PU-2021-1028

ALT-PU-2021-1068

ALT-PU-2022-1368

BDU:2022-00214

CVE-2020-26421

DLA-2547-1

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

SUSE-SU-2024:3323-1

SUSE-SU-2024_3323-1

Affected Products

Alt Linux

Astra Linux

Suse

Wireshark

References · 213

• 🔥 https://gitlab.com/wireshark/wireshark/-/issues/16958 · Exploit
• https://wireshark.org/security/wnpa-sec-2020-17.html · Vendor Advisory
• https://oracle.com/security-alerts/cpuApr2021.html · Patch
• https://osv.dev/vulnerability/SUSE-SU-2024:3323-1 · Vendor Advisory
• https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-26421 · Security Note
• https://bdu.fstec.ru/vul/2022-00214 · Security Note
• https://osv.dev/vulnerability/UBUNTU-CVE-2020-26421 · Vendor Advisory
• https://osv.dev/vulnerability/openSUSE-SU-2021:0909-1 · Vendor Advisory
• https://security.gentoo.org/glsa/202101-12 · Vendor Advisory
• https://security-tracker.debian.org/tracker/CVE-2020-26421 · Vendor Advisory
• https://cve.org/CVERecord?id=CVE-2020-26421 · Security Note
• https://osv.dev/vulnerability/CVE-2020-26421 · Vendor Advisory
• https://osv.dev/vulnerability/DLA-2547-1 · Vendor Advisory
• https://wiki.astralinux.ru/astra-linux-se17-bulletin-2021-1126SE17 · Vendor Advisory