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.
CVSS Details
- CVSS 3.1 Base Score: 4.9
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libecap-develUpgrade squidUpgrade libecap | May 13, 2022 | May 27, 2021 |
| Alpine Linux | — | Upgrade squid | Mar 26, 2024 | May 27, 2021 |
| Amazon Linux Ami 2 | — | Upgrade squid-migration-scriptUpgrade squid-sysvinitUpgrade squidUpgrade squid-debuginfo | Feb 23, 2023 | May 27, 2021 |
| Amazon_linux | — | Upgrade squid | Feb 23, 2023 | May 27, 2021 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | May 27, 2021 |
| Centos_linux | — | Upgrade squid-debugsourceUpgrade squidUpgrade libecap-develUpgrade libecap-debugsourceUpgrade libecapUpgrade squid-debuginfoUpgrade libecap-debuginfo | Nov 10, 2021 | May 27, 2021 |
| Debian | — | Upgrade squid | Jun 3, 2021 | May 27, 2021 |
| Gentoo Linux | — | Upgrade net-proxy/squid. | May 28, 2021 | May 26, 2021 |
| Huawei Euleros 2_0_sp3 | — | Upgrade squidUpgrade squid-migration-script | Feb 24, 2022 | May 27, 2021 |
| Huawei Euleros 2_0_sp5 | — | Upgrade squid | Sep 29, 2021 | May 27, 2021 |
| Huawei Euleros 2_0_sp8 | — | Upgrade squid | Aug 10, 2021 | May 27, 2021 |
| Oracle Solaris | — | Upgrade web/proxy/squid to version 4.15-11.4.39.0.1.107.0 on Solaris 11.4 | Nov 17, 2021 | May 27, 2021 |
| Oracle_linux | — | Upgrade libecapUpgrade squid-sysvinitUpgrade squidUpgrade libecap-develUpgrade squid-migration-script | Sep 25, 2021 | May 10, 2021 |
| Redhat_linux | — | Upgrade squidUpgrade libecap-develUpgrade squid-debugsourceNo solution existsUpgrade libecapUpgrade libecap-debugsourceUpgrade libecap-debuginfoUpgrade squid-debuginfo | Nov 10, 2021 | May 27, 2021 |
| Rocky_linux | — | Upgrade libecap-develUpgrade squid-debugsourceUpgrade squidUpgrade libecapUpgrade squid-debuginfoUpgrade libecap-debuginfoUpgrade libecap-debugsource | Mar 12, 2024 | May 27, 2021 |
| Suse | — | Upgrade squid | Jun 3, 2021 | May 27, 2021 |
| Ubuntu | — | Upgrade squid | Jun 4, 2021 | May 27, 2021 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | May 27, 2021 |
Prioritise with Active Threat Intelligence
With curated Threat Intelligence, you can see which vulnerabilities truly put you at risk, prioritize what matters most, and act before attackers do.
Explore Intelligence Hub