An issue was discovered in Squid 3.3.9 through 3.5.28 and 4.x through 4.7. When Squid is configured to use Digest authentication, it parses the header Proxy-Authorization. It searches for certain tokens such as domain, uri, and qop. Squid checks if this token's value starts with a quote and ends with one. If so, it performs a memcpy of its length minus 2. Squid never checks whether the value is just a single quote (which would satisfy its requirements), leading to a memcpy of its length minus 1.
CVSS Details
- CVSS 3.1 Base Score: 9.8
- CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H)
Covered by Rapid7
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libecap-develUpgrade libecap | May 4, 2022 | Jul 11, 2019 |
| Alpine Linux | — | Upgrade squid | Jan 19, 2021 | Jul 11, 2019 |
| Amazon Linux Ami 2 | — | Upgrade squid-sysvinitUpgrade squidUpgrade squid-debuginfoUpgrade squid-migration-script | Jul 2, 2020 | Jul 11, 2019 |
| Amazon_linux | — | Upgrade squid | Jun 4, 2020 | Jul 11, 2019 |
| Centos_linux | — | Upgrade squid-debugsourceUpgrade squid-migration-scriptUpgrade squid-sysvinitUpgrade squid-debuginfoUpgrade libecap-develUpgrade libecap-debuginfoUpgrade libecap-debugsourceUpgrade squidUpgrade libecap | May 7, 2020 | Jul 11, 2019 |
| Debian | — | Upgrade squid | Jul 22, 2019 | Jul 11, 2019 |
| Huawei Euleros 2_0_sp2 | — | Upgrade squidUpgrade squid-migration-script | Dec 4, 2019 | Jul 11, 2019 |
| Huawei Euleros 2_0_sp3 | — | Upgrade squid-migration-scriptUpgrade squid | Sep 25, 2019 | Jul 11, 2019 |
| Huawei Euleros 2_0_sp8 | — | Upgrade squid | Sep 30, 2019 | Jul 11, 2019 |
| Oracle Solaris | — | Upgrade web/proxy/squid to version 4.8-11.4.15.0.1.3.0 on Solaris 11.4 | Nov 20, 2019 | Jul 11, 2019 |
| Oracle_linux | — | Upgrade squidUpgrade squid-migration-scriptUpgrade libecap-develUpgrade libecapUpgrade squid-sysvinit | Oct 5, 2022 | Jul 12, 2019 |
| Redhat_linux | — | Upgrade squidUpgrade libecap-develNo solution existsUpgrade squid-debugsourceUpgrade squid-sysvinitUpgrade squid-debuginfoUpgrade libecap-debugsourceUpgrade squid-migration-scriptUpgrade libecap-debuginfoUpgrade libecap | May 7, 2020 | Jul 11, 2019 |
| Rocky_linux | — | Upgrade libecapUpgrade libecap-debugsourceUpgrade libecap-debuginfoUpgrade libecap-devel | Mar 12, 2024 | Jul 11, 2019 |
| Suse | — | Upgrade squidUpgrade squid3 | Aug 9, 2019 | Jul 11, 2019 |
| Ubuntu | — | Upgrade squid3Upgrade squid | Jul 19, 2019 | Jul 11, 2019 |
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