A buffer over-read was discovered in libntlmauth in Squid 2.5 through 5.6. Due to incorrect integer-overflow protection, the SSPI and SMB authentication helpers are vulnerable to reading unintended memory locations. In some configurations, cleartext credentials from these locations are sent to a client. This is fixed in 5.7.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade squidUpgrade libecapUpgrade libecap-devel | Oct 11, 2022 | Oct 6, 2022 |
| Alpine Linux | — | Upgrade squid | Mar 26, 2024 | Dec 25, 2022 |
| Amazon Linux Ami 2 | — | Upgrade squidUpgrade squid-sysvinitUpgrade squid-debuginfoUpgrade squid-migration-script | Jan 24, 2023 | Dec 25, 2022 |
| Amazon_linux | — | Upgrade squid | Feb 7, 2023 | Sep 26, 2022 |
| Arch Linux | — | Upgrade to the latest version of Arch Linux | Jul 11, 2025 | Dec 25, 2022 |
| Centos_linux | — | Upgrade libecap-debuginfoUpgrade squid-sysvinitUpgrade squidUpgrade libecap-debugsourceUpgrade squid-debuginfoUpgrade squid-migration-scriptUpgrade libecap-develUpgrade libecapUpgrade squid-debugsource | Oct 20, 2022 | Oct 4, 2022 |
| Debian | — | Upgrade squid | Oct 14, 2022 | Oct 14, 2022 |
| Huawei Euleros 2_0_sp5 | — | Upgrade squid | Mar 9, 2023 | Dec 25, 2022 |
| Huawei Euleros 2_0_sp8 | — | Upgrade squid | Dec 9, 2022 | Dec 8, 2022 |
| Oracle_linux | — | Upgrade squid-migration-scriptUpgrade squid-sysvinitUpgrade libecap-develUpgrade libecapUpgrade squid | Oct 5, 2022 | Sep 23, 2022 |
| Redhat_linux | — | Upgrade squid-migration-scriptUpgrade libecap-develUpgrade squidUpgrade libecapUpgrade squid-debugsourceUpgrade libecap-debugsourceUpgrade squid-sysvinitUpgrade libecap-debuginfoNo solution existsUpgrade squid-debuginfo | Oct 20, 2022 | Oct 4, 2022 |
| Rocky_linux | — | Upgrade libecap-debugsourceUpgrade squid-debuginfoUpgrade squid-debugsourceUpgrade libecap-debuginfoUpgrade libecap-develUpgrade libecapUpgrade squid | Mar 12, 2024 | Dec 25, 2022 |
| Suse | — | Upgrade squid | Oct 26, 2022 | Oct 6, 2022 |
| Ubuntu | — | Upgrade squid (Ubuntu Pro)Upgrade squidUpgrade squid3 (Ubuntu Pro) | Sep 27, 2022 | Sep 26, 2022 |
| Vmware Photon_os | — | Use 'tdnf update' to upgrade all packages to the latest version. | Jan 20, 2025 | Dec 25, 2022 |
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