CVE-2020-26421
First published: Fri Dec 11 2020(Updated: )
Crash in USB HID protocol dissector and possibly other dissectors in Wireshark 3.4.0 and 3.2.0 to 3.2.8 allows denial of service via packet injection or crafted capture file.
Credit: cve@gitlab.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Wireshark | >=3.2.0<=3.2.8 | |
| Wireshark | =3.4.0 | |
| Red Hat Fedora | =32 | |
| Red Hat Fedora | =33 | |
| Debian Linux | =9.0 | |
| Oracle Storage Cloud Software Appliance | =8.8 |
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Reference Links
- https://gitlab.com/gitlab-org/cves/-/blob/master/2020/CVE-2020-26421.json
- https://gitlab.com/wireshark/wireshark/-/issues/16958
- https://lists.debian.org/debian-lts-announce/2021/02/msg00008.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/YHWDZPWQJMLK64VFDWJC5SEGPNH6Y72Z/
- https://security.gentoo.org/glsa/202101-12
- https://www.oracle.com/security-alerts/cpuApr2021.html
- https://www.wireshark.org/security/wnpa-sec-2020-17.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YHWDZPWQJMLK64VFDWJC5SEGPNH6Y72Z/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/M75HYXU36SP6GHIDPHNZGJKEO6TX4C4Y/
Frequently Asked Questions
What is the severity of CVE-2020-26421?
CVE-2020-26421 has been classified with a severity rating that allows denial of service through crafted packet injection.
How do I fix CVE-2020-26421?
To address CVE-2020-26421, upgrade Wireshark versions to 3.2.9 or later or 3.4.1 or later.
Which versions of Wireshark are affected by CVE-2020-26421?
CVE-2020-26421 affects Wireshark versions from 3.2.0 to 3.2.8 and 3.4.0.
Can CVE-2020-26421 lead to remote exploitation?
CVE-2020-26421 can be exploited by an attacker via packet injection, resulting in a denial of service.
Is CVE-2020-26421 specific to certain operating systems?
CVE-2020-26421 can affect multiple operating systems running vulnerable versions of Wireshark.
- agent/type
- collector/mitre-cve
- source/MITRE
- agent/references
- agent/last-modified-date
- agent/severity
- agent/weakness
- agent/remedy
- agent/author
- agent/first-publish-date
- agent/event
- agent/description
- agent/source
- agent/softwarecombine
- agent/tags
- collector/nvd-index
- agent/software-canonical-lookup-request
- vendor/wireshark
- canonical/wireshark
- version/wireshark/3.2.0
- version/wireshark/3.2.8
- version/wireshark/3.4.0
- vendor/fedoraproject
- canonical/red hat fedora
- version/red hat fedora/32
- version/red hat fedora/33
- vendor/debian
- canonical/debian linux
- version/debian linux/9.0
- vendor/oracle
- canonical/oracle storage cloud software appliance
- version/oracle storage cloud software appliance/8.8