CVE-2021-28652
squid: denial of service issue in Cache Manager
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
1Exploited in Wild
-Decision
Descriptions
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 allows a trusted client to trigger memory leaks that. over time, lead to a Denial of Service via an unspecified short query string. This attack is limited to clients with Cache Manager API access privilege.
Se detectó un problema en Squid versiones anteriores a 4.15 y versiones 5.x anteriores a 5.0.6. Debido a una comprobación del analizador incorrecta, permite un ataque de Denegación de Servicio contra la API del administrador de caché. Esto permite a un cliente confiable desencadenar filtraciones de memoria. Con el tiempo, conlleva a una Denegación de Servicio por medio de una cadena de consulta corta no especificada. Este ataque está limitado a clientes con privilegios de acceso a la API de Cache Manager
A flaw was found in Squid. A parser validation bug could allow a trusted client with Cache Manager API access privileges to trigger memory leaks, potentially resulting in a denial of service against Squid. The highest threat from this vulnerability is to system availability.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2021-03-17 CVE Reserved
- 2021-05-26 CVE Published
- 2023-11-08 EPSS Updated
- 2024-08-03 CVE Updated
- 2024-08-03 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-401: Missing Release of Memory after Effective Lifetime
CAPEC
References (10)
| URL | Tag | Source |
|---|---|---|
| http://seclists.org/fulldisclosure/2023/Oct/14 | Mailing List |
|
| http://www.openwall.com/lists/oss-security/2023/10/11/3 | Mailing List |
|
| https://lists.debian.org/debian-lts-announce/2021/06/msg00014.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://bugs.squid-cache.org/show_bug.cgi?id=5106 | 2024-08-03 |
| URL | Date | SRC |
|---|---|---|
| https://github.com/squid-cache/squid/security/advisories/GHSA-m47m-9hvw-7447 | 2023-11-07 |
Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | >= 1.0 < 4.15 Search vendor "Squid-cache" for product "Squid" and version " >= 1.0 < 4.15" | - |
Affected
| ||||||
| Squid-cache Search vendor "Squid-cache" | Squid Search vendor "Squid-cache" for product "Squid" | >= 5.0 < 5.0.6 Search vendor "Squid-cache" for product "Squid" and version " >= 5.0 < 5.0.6" | - |
Affected
| ||||||
| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 9.0 Search vendor "Debian" for product "Debian Linux" and version "9.0" | - |
Affected
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| Debian Search vendor "Debian" | Debian Linux Search vendor "Debian" for product "Debian Linux" | 10.0 Search vendor "Debian" for product "Debian Linux" and version "10.0" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 33 Search vendor "Fedoraproject" for product "Fedora" and version "33" | - |
Affected
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| Fedoraproject Search vendor "Fedoraproject" | Fedora Search vendor "Fedoraproject" for product "Fedora" | 34 Search vendor "Fedoraproject" for product "Fedora" and version "34" | - |
Affected
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