CVE-2021-4182
First published: Thu Dec 30 2021(Updated: )
Crash in the RFC 7468 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 | |
| Oracle HTTP Server | =12.2.1.3.0 | |
| Oracle HTTP Server | =12.2.1.4.0 | |
| Oracle ZFS Storage Appliance Kit | =8.8 |
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Reference Links
- https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4182.json
- https://gitlab.com/wireshark/wireshark/-/issues/17801
- 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-2021-20.html
Frequently Asked Questions
What is CVE-2021-4182?
CVE-2021-4182 is a vulnerability in Wireshark versions 3.6.0 and 3.4.0 to 3.4.10 that allows denial of service via packet injection or crafted capture file.
How does CVE-2021-4182 affect Wireshark?
CVE-2021-4182 affects Wireshark versions 3.6.0 and 3.4.0 to 3.4.10, potentially leading to denial of service due to crashes in the RFC 7468 dissector.
What is the severity of CVE-2021-4182?
CVE-2021-4182 has a severity level of high, with a CVSS score of 7.5.
How can I exploit CVE-2021-4182?
CVE-2021-4182 can be exploited by injecting malicious packets or using a crafted capture file to crash Wireshark.
How can I mitigate CVE-2021-4182?
To mitigate CVE-2021-4182, it is recommended to update to Wireshark version 3.4.11 or later.
- agent/author
- agent/description
- agent/event
- agent/first-publish-date
- agent/last-modified-date
- agent/references
- agent/severity
- agent/softwarecombine
- agent/tags
- agent/type
- agent/weakness
- collector/nvd-index
- 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/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