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An issue was discovered in Squid before 4.9. URN response handling in Squid suffers from a heap-based buffer overflow. When receiving data from a remote server in response to an URN request, Squid fails to ensure that the response can fit within the buffer. This leads to attacker controlled data overflowing in the heap.
| 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-migration-scriptUpgrade squid-debuginfoUpgrade squid-sysvinitUpgrade squid | Jun 8, 2023 | Nov 26, 2019 |
| Amazon_linux | — | Upgrade squid | Jul 4, 2023 | Nov 14, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Nov 26, 2019 |
| Centos_linux | — | Upgrade libecap-debugsourceUpgrade squid-debuginfoUpgrade libecap-develUpgrade libecapUpgrade libecap-debuginfoUpgrade squidUpgrade squid-debugsource | Nov 5, 2020 | Nov 26, 2019 |
| Debian | — | Upgrade squid | Dec 12, 2019 | Nov 26, 2019 |
| Gentoo Linux | — | Upgrade net-proxy/squid. | Mar 17, 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 libecapUpgrade squidUpgrade libecap-devel | Jul 22, 2024 | Nov 5, 2019 |
| Redhat_linux | — | Upgrade libecap-debuginfoUpgrade squid-debugsourceUpgrade libecap-debugsourceUpgrade squidUpgrade libecap-develNo solution existsUpgrade libecapUpgrade squid-debuginfo | Nov 5, 2020 | Nov 26, 2019 |
| Rocky_linux | — | Upgrade libecapUpgrade libecap-debuginfoUpgrade libecap-develUpgrade libecap-debugsource | Mar 12, 2024 | Nov 26, 2019 |
| Suse | — | Upgrade squid3Upgrade squid | Nov 22, 2019 | Nov 14, 2019 |
| Ubuntu | — | Upgrade squid3Upgrade squid | Dec 5, 2019 | Nov 14, 2019 |
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