CVE-2021-22207 is a denial-of-service vulnerability affecting Wireshark versions 3.4.0 to 3.4.4 and 3.2.0 to 3.2.12, as well as related distributions like Debian, Fedora, and Oracle. The vulnerability stems from excessive memory consumption in the MS-WSP dissector, which can be triggered by injecting malicious packets or processing crafted capture files. With a CVSS score of 6.5 (Medium), it can be exploited remotely with low complexity and no user interaction, leading to high availability impact. There is currently no evidence of active exploitation, publicly available exploit code (Metasploit, Nuclei, ExploitDB), or significant community discussion or media coverage.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
>= 3.2.0, <= 3.2.12CPE matchmatch criteria | cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* | ||
>= 3.4.0, <= 3.4.4CPE matchmatch criteria | cpe:2.3:a:wireshark:wireshark:*:*:*:*:*:*:*:* | ||
33CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | ||
34CPE matchmatch criteria | cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | ||
8.8CPE matchmatch criteria | cpe:2.3:a:oracle:zfs_storage_appliance_kit:8.8:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.
CVE-2021-22207
Jan 11, 2022wireshark: MS-WSP dissector excessive memory consumption
Apr 21, 2021Excessive memory consumption in MS-WSP dissector in Wireshark 3.4.0 to 3.4.4 and 3.2.0 to 3.2.12 allows denial of service via packet injection or crafted capture file
Apr 13, 2021