An issue was discovered in Squid 3.x and 4.x through 4.8. Due to incorrect input validation, there is a heap-based buffer overflow that can result in Denial of Service to all clients using the proxy. Severity is high due to this vulnerability occurring before normal security checks; any remote client that can reach the proxy port can trivially perform the attack via a crafted URI scheme.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libecap-develUpgrade libecap | May 4, 2022 | Nov 26, 2019 |
| Alpine Linux | — | Upgrade squid | Jan 19, 2021 | Nov 26, 2019 |
| Amazon Linux Ami 2 | — | Upgrade squid-sysvinitUpgrade squid-debuginfoUpgrade squid-migration-scriptUpgrade squid | Jun 6, 2023 | Nov 26, 2019 |
| Amazon_linux | — | Upgrade squid | Jun 7, 2023 | Nov 14, 2019 |
| Centos_linux | — | Upgrade squid-debugsourceUpgrade squid-debuginfoUpgrade libecap-debuginfoUpgrade libecapUpgrade libecap-debugsourceUpgrade libecap-develUpgrade squid | Nov 5, 2020 | Nov 26, 2019 |
| Debian | — | Upgrade squid | May 11, 2020 | Nov 26, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade squid-migration-scriptUpgrade squid | Apr 30, 2021 | Nov 26, 2019 |
| Huawei Euleros 2_0_sp5 | — | Upgrade squid | Feb 24, 2020 | Nov 26, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade squid | Jan 3, 2020 | Nov 26, 2019 |
| Oracle Solaris | — | Upgrade web/proxy/squid to version 4.10-11.4.21.0.1.69.0 on Solaris 11.4 | Jan 19, 2021 | Nov 26, 2019 |
| Oracle_linux | — | Upgrade squidUpgrade libecapUpgrade libecap-devel | Jul 22, 2024 | Nov 5, 2019 |
| Redhat_linux | — | Upgrade squidUpgrade libecap-debugsourceUpgrade libecap-develUpgrade libecapUpgrade libecap-debuginfoUpgrade squid-debuginfoUpgrade squid-debugsourceNo solution exists | Nov 5, 2020 | Nov 26, 2019 |
| Rocky_linux | — | Upgrade libecap-develUpgrade libecap-debugsourceUpgrade libecap-debuginfoUpgrade libecap | Mar 12, 2024 | Nov 26, 2019 |
| Suse | — | Upgrade squid3Upgrade squid | Nov 22, 2019 | Nov 14, 2019 |
| Ubuntu | — | Upgrade squid | Dec 5, 2019 | Nov 14, 2019 |
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