DeutschShown in its original language — a full translation is planned for a future version.
Squid: Mehrere Schwachstellen ermöglichen Denial of Service
view advisory published 2021-05-10
Ein entfernter, anonymer Angreifer kann mehrere Schwachstellen in Squid ausnutzen, um einen Denial of Service Angriff durchzuführen.
01
describes (5)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2021-31808US | medium6.5 | — | ||
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to an input-validation bug, it is vulnerable to a Denial of Service attack (against all clients using the pro… | ||||
| CVE-2021-31806US | medium6.5 | Exploit | ||
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a memory-management bug, it is vulnerable to a Denial of Service attack (against all clients using the pro… | ||||
| CVE-2021-28662US | medium6.5 | — | ||
An issue was discovered in Squid 4.x before 4.15 and 5.x before 5.0.6. If a remote server sends a certain response header over HTTP or HTTPS, there is a denial of service. This hea… | ||||
| CVE-2021-28652US | medium4.9 | — | ||
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to incorrect parser validation, it allows a Denial of Service attack against the Cache Manager API. This allo… | ||||
| CVE-2021-28651US | high7.5 | — | ||
An issue was discovered in Squid before 4.15 and 5.x before 5.0.6. Due to a buffer-management bug, it allows a denial of service. When resolving a request with the urn: scheme, the… | ||||
02
references
External citations — patches, advisories, analysis.
- Oracle Linux Security Advisory ELSA-2022-5542 vom 2022-07-13external
- Oracle Linux Security Advisory ELSA-2023-6805 vom 2023-11-09external
- Oracle Linux Security Advisory ELSA-2025-14414 vom 2025-09-30external
- Red Hat Security Advisory RHSA-2021:4292 vom 2021-11-09external
- Red Hat Security Advisory RHSA-2025:14414 vom 2025-08-25external
- Amazon Linux Security Advisory ALAS-2023-1950 vom 2023-02-22external
- Amazon Linux Security Advisory ALASSQUID4-2023-004 vom 2023-09-27external
- Squid Security Advisory: SQUID-2021:5 vom 2021-05-10external
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