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CVE-2021-4183

MEDIUM
5.5
CVSS Score
Published: December 30, 2021 at 12:00 AM UTC
Updated: June 17, 2026 at 04:19 AM UTC
4 products affected across 3 vendorsFedoraWiresharkZfs Storage Appliance Kit

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Severity
MEDIUM5.5
Exploit prediction
EPSS 2%

Description

Crash in the pcapng file parser in Wireshark 3.6.0 allows denial of service via crafted capture file

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

References (7)

Third Party Advisory
Source: [email protected]
https://gitlab.com/gitlab-org/cves/-/blob/master/2021/CVE-2021-4183.json
ExploitIssue TrackingPatchThird Party Advisory
Source: [email protected]
https://gitlab.com/wireshark/wireshark/-/issues/17755
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/Q6XGBKWSQFCVYUN4ZK3O3NJIFP3OAFVT/
Vendor Advisory
Source: [email protected]
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R5AEK3XTOIOGCGUILUFISMGX54YJXWGJ/
Vendor AdvisoryThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202210-04
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://www.oracle.com/security-alerts/cpuapr2022.html
Vendor Advisory
Source: [email protected]
https://www.wireshark.org/security/wnpa-sec-2021-19.html

CVSS

5.5MEDIUMGitLab
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-125

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