CVE-2021-4185
First published: Thu Dec 30 2021(Updated: )
Infinite loop in the RTMPT dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allows denial of service via packet injection or crafted capture file
Credit: cve@gitlab.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Wireshark Wireshark | >=3.4.0<3.4.11 | |
| Wireshark Wireshark | =3.6.0 | |
| Fedoraproject Fedora | =34 | |
| Fedoraproject Fedora | =35 | |
| Debian Debian Linux | =9.0 | |
| Oracle HTTP Server | =12.2.1.3.0 | |
| Oracle HTTP Server | =12.2.1.4.0 | |
| Oracle ZFS Storage Appliance Kit | =8.8 |
Never miss a vulnerability like this again
Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.
Reference Links
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4185.json
- https://gitlab.com/wireshark/wireshark/-/issues/17745
- https://lists.debian.org/debian-lts-announce/2022/03/msg00041.html
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/
- https://security.gentoo.org/glsa/202210-04
- https://www.oracle.com/security-alerts/cpuapr2022.html
- https://www.wireshark.org/security/wnpa-sec-2021-17.html
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/
Frequently Asked Questions
What is CVE-2021-4185?
CVE-2021-4185 is a vulnerability in Wireshark 3.6.0 and 3.4.0 to 3.4.10 that allows denial of service through packet injection or crafted capture file.
How does CVE-2021-4185 impact Wireshark?
CVE-2021-4185 can result in an infinite loop in the RTMPT dissector of Wireshark, leading to a denial of service.
What is the severity of CVE-2021-4185?
CVE-2021-4185 has a severity rating of 7.5 (High).
Which software versions are affected by CVE-2021-4185?
Wireshark versions 3.6.0 and 3.4.0 to 3.4.10 are affected by CVE-2021-4185.
How can I fix CVE-2021-4185?
To fix CVE-2021-4185, update to Wireshark version 3.4.11 or newer.
- collector/nvd-index
- agent/severity
- agent/weakness
- agent/references
- agent/author
- agent/description
- agent/type
- agent/event
- agent/last-modified-date
- agent/softwarecombine
- agent/first-publish-date
- agent/tags
- collector/mitre-cve
- source/MITRE
- vendor/wireshark
- canonical/wireshark wireshark
- version/wireshark wireshark/3.4.0
- version/wireshark wireshark/3.6.0
- vendor/fedoraproject
- canonical/fedoraproject fedora
- version/fedoraproject fedora/34
- version/fedoraproject fedora/35
- vendor/debian
- canonical/debian debian linux
- version/debian debian linux/9.0
- vendor/oracle
- canonical/oracle http server
- version/oracle http server/12.2.1.3.0
- version/oracle http server/12.2.1.4.0
- canonical/oracle zfs storage appliance kit
- version/oracle zfs storage appliance kit/8.8