CVE-2021-4185 — Infinite Loop in Wireshark

CWE-835 — Infinite Loop9 documents9 sources
Severity
7.5HIGHNVD
EPSS
0.1%
top 67.58%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
6
WiresharkWireshark Foundation WiresharkDebian Linux+3 more
Timeline
PublishedDec 30
Latest updateJun 4

Description

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

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitability: 3.9 | Impact: 3.6

Affected Packages5 packages

▶NVDwireshark/wireshark3.4.0 — 3.4.11+1
▶Debianwireshark/wireshark< 3.4.16-0+deb11u1+3
▶CVEListV5wireshark_foundation/wireshark=3.6.0, >=3.4.0, <3.4.10+1
▶NVDoracle/http_server12.2.1.3.0, 12.2.1.4.0+1

Also affects: Debian Linux 9.0, Fedora 34, 35

🔴Vulnerability Details

3
GHSA
GHSA-wm4g-hw88-g25h: Infinite loop in the RTMPT dissector in Wireshark 3↗2021-12-31
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OSV
CVE-2021-4185: Infinite loop in the RTMPT dissector in Wireshark 3↗2021-12-30
▶
CVEList
CVE-2021-4185: Infinite loop in the RTMPT dissector in Wireshark 3↗2021-12-30
▶

📋Vendor Advisories

5
Ubuntu
Wireshark vulnerabilities↗2025-06-04
▶
Chrome
Stable Channel Update for Desktop: CVE-2022-4183↗2022-11-29
▶
Red Hat
wireshark: RTMPT dissector infinite loop↗2021-12-29
▶
Microsoft
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↗2021-12-14
▶
Debian
CVE-2021-4185: wireshark - Infinite loop in the RTMPT dissector in Wireshark 3.6.0 and 3.4.0 to 3.4.10 allo...↗2021
▶
CVE-2021-4185 — Infinite Loop in Wireshark | cvebase