An issue was discovered in Squid 2.x, 3.x, and 4.x through 4.8. Due to incorrect data management, it is vulnerable to information disclosure when processing HTTP Digest Authentication. Nonce tokens contain the raw byte value of a pointer that sits within heap memory allocation. This information reduces ASLR protections and may aid attackers isolating memory areas to target for remote code execution attacks.
| 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-debuginfoUpgrade squid-sysvinitUpgrade squid-migration-scriptUpgrade squid | Sep 3, 2020 | Nov 26, 2019 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Nov 26, 2019 |
| Centos_linux | — | Upgrade libecapUpgrade libecap-debuginfoUpgrade squid-debuginfoUpgrade libecap-develUpgrade squidUpgrade libecap-debugsourceUpgrade squid-debugsource | Nov 5, 2020 | Nov 26, 2019 |
| Debian | — | Upgrade squid | Dec 12, 2019 | Nov 26, 2019 |
| Freebsd | — | Upgrade squid | Nov 19, 2019 | Nov 19, 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 squidUpgrade libecap-develUpgrade libecap | Jul 22, 2024 | Nov 5, 2019 |
| Redhat_linux | — | Upgrade squid-debugsourceUpgrade libecap-develNo solution existsUpgrade squid-debuginfoUpgrade libecap-debugsourceUpgrade squidUpgrade libecapUpgrade libecap-debuginfo | Nov 5, 2020 | Nov 26, 2019 |
| Rocky_linux | — | Upgrade libecap-debuginfoUpgrade libecap-debugsourceUpgrade libecapUpgrade libecap-devel | Mar 12, 2024 | Nov 26, 2019 |
| Suse | — | Upgrade squid3Upgrade squid | Nov 22, 2019 | Nov 5, 2019 |
| Ubuntu | — | Upgrade squidUpgrade squid3 | Dec 5, 2019 | Nov 5, 2019 |
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