CVE-2021-33620
Public on 2021-05-28
Modified on 2024-03-01
Description
Squid before 4.15 and 5.x before 5.0.6 allows remote servers to cause a denial of service (affecting availability to all clients) via an HTTP response. The issue trigger is a header that can be expected to exist in HTTP traffic without any malicious intent by the server.
Severity
Medium
CVSS v3 Base Score
See breakdown
Affected Packages
| Platform | Package | Release Date | Advisory | Status |
|---|---|---|---|---|
| Amazon Linux 1 | squid | 2023-02-17 | ALAS-2023-1687 | Fixed |
| Amazon Linux 2 - Core | squid | 2023-02-17 | ALAS2-2023-1950 | Fixed |
| Amazon Linux 2 - Squid4 Extra | squid | 2023-08-21 | ALAS2SQUID4-2023-004 | Fixed |
| Amazon Linux 2023 | squid | Not Affected |
CVSS Scores
| Score Type | Score | Vector | |
|---|---|---|---|
| Amazon Linux | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
| NVD | CVSSv2 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
| NVD | CVSSv3 | 6.5 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |