squid: Squid is a caching proxy for the Web
CVE-2023-46724 is fixed in 10 products on 1 platform, first by DEBIAN-CVE-2023-46724, released November 1, 2023. It is not reported as exploited. Patch Radar priority: High.
Squid is a caching proxy for the Web. Due to an Improper Validation ofSpecified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to6.4 compiled using `--with-openssl` are vulnerable to a Denial of Serviceattack against SSL Certificate validation. This problem allows a remoteserver to perform Denial of Service against Squid Proxy by initiating a TLSHandshake with a specially crafted SSL Certificate in a server certificatechain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed inSquid version 6.4. In addition, patches addressing this problem for thestable releases can be found in Squid's patch archives. Those who you use aprepackaged version of Squid should refer to the package vendor foravailability information on updated packages.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| libecap · RHEL 8 | 0:1.0.1-2.module+el8.9.0+19703+a1da7223 | RHSA-2024:0046 | Jan 3, 2024 |
| libecap · almalinux 8 | 1.0.1-2.module_el8.6.0+2741+01592ae8 | ALSA-2024:0046 | Jan 3, 2024 |
| libecap · ol 8 | 0:1.0.1-2.module+el8.9.0+90083+f7556140 | ELSA-2024-0046 | Jan 4, 2024 |
| libecap · rocky 8 | 0:1.0.1-2.module+el8.9.0+1437+df5ea8f0 | RLSA-2024:0046 | Jan 9, 2024 |
| libecap-devel · RHEL 8 | 0:1.0.1-2.module+el8.9.0+19703+a1da7223 | RHSA-2024:0046 | Jan 3, 2024 |
| libecap-devel · almalinux 8 | 1.0.1-2.module_el8.6.0+2741+01592ae8 | ALSA-2024:0046 | Jan 3, 2024 |
| libecap-devel · ol 8 | 0:1.0.1-2.module+el8.9.0+90083+f7556140 | ELSA-2024-0046 | Jan 4, 2024 |
| squid · Debian 11.6 (bullseye) | 4.13-10+deb11u3 | DSA-5637-1 | Mar 8, 2024 |
| squid · Debian 12.15 (bookworm) | 5.7-2+deb12u1 | DSA-5637-1 | Mar 8, 2024 |
| squid · Debian 13.5 (trixie) | 6.5-1 | DEBIAN-CVE-2023-46724 | Nov 1, 2023 |
| squid · Debian 14 | 6.5-1 | DEBIAN-CVE-2023-46724 | Nov 1, 2023 |
| squid · RHEL 8 | 7:4.15-7.module+el8.9.0+20975+25f17541.5 | RHSA-2024:0046 | Jan 3, 2024 |
| squid · RHEL 9 | 7:5.5-6.el9_3.5 | RHSA-2024:0071 | Jan 8, 2024 |
| squid · Ubuntu 22.04.1 LTS (jammy) | 5.7-0ubuntu0.22.04.2 | squid 5.7-0ubuntu0.22.04.2 | Nov 6, 2023 |
| squid · Ubuntu 24.04.5 LTS (noble) | 6.1-2ubuntu2 | squid 6.1-2ubuntu2 | Nov 3, 2023 |
| squid · Ubuntu 24.10 (oracular) | 6.1-2ubuntu2 | squid 6.1-2ubuntu2 | Jan 16, 2026 |
| squid · Ubuntu 25.04 (plucky) | 6.1-2ubuntu2 | squid 6.1-2ubuntu2 | Jan 16, 2026 |
| squid · almalinux 8 | 7:4.15-7.module_el8.9.0+3708+6acaac63.5 | ALSA-2024:0046 | Jan 3, 2024 |
| squid · almalinux 9 | 7:5.5-6.el9_3.5 | ALSA-2024:0071 | Jan 8, 2024 |
| squid · amzn 2023 | 7:5.8-1.amzn2023.0.2 | ALAS2023-2023-429 | Nov 9, 2023 |
| squid · ol 8 | 7:4.15-7.module+el8.9.0+90111+615ac445.5 | ELSA-2024-0046 | Jan 4, 2024 |
| squid · ol 9 | 7:5.5-6.0.1.el9_3.5 | ELSA-2024-0071 | Jan 10, 2024 |
| squid · rocky 8 | 7:4.15-7.module+el8.9.0+1568+6d4fd5d4.1 | RLSA-2024:0046 | Jan 9, 2024 |
| squid-cgi · Ubuntu 22.04.1 LTS (jammy) | 5.7-0ubuntu0.22.04.2 | squid-cgi 5.7-0ubuntu0.22.04.2 | Nov 6, 2023 |
| squid-cgi · Ubuntu 24.04.5 LTS (noble) | 6.1-2ubuntu2 | squid-cgi 6.1-2ubuntu2 | Nov 3, 2023 |
| squid-cgi · Ubuntu 24.10 (oracular) | 6.1-2ubuntu2 | squid-cgi 6.1-2ubuntu2 | Jan 16, 2026 |
| squid-cgi · Ubuntu 25.04 (plucky) | 6.1-2ubuntu2 | squid-cgi 6.1-2ubuntu2 | Jan 16, 2026 |
| squid-common · Ubuntu 22.04.1 LTS (jammy) | 5.7-0ubuntu0.22.04.2 | squid-common 5.7-0ubuntu0.22.04.2 | Nov 6, 2023 |
| squid-common · Ubuntu 24.04.5 LTS (noble) | 6.1-2ubuntu2 | squid-common 6.1-2ubuntu2 | Nov 3, 2023 |
| squid-common · Ubuntu 24.10 (oracular) | 6.1-2ubuntu2 | squid-common 6.1-2ubuntu2 | Jan 16, 2026 |
| squid-common · Ubuntu 25.04 (plucky) | 6.1-2ubuntu2 | squid-common 6.1-2ubuntu2 | Jan 16, 2026 |
| squid-debuginfo · amzn 2023 | 7:5.8-1.amzn2023.0.2 | ALAS2023-2023-429 | Nov 9, 2023 |
| squid-debugsource · amzn 2023 | 7:5.8-1.amzn2023.0.2 | ALAS2023-2023-429 | Nov 9, 2023 |
| squid-openssl · Ubuntu 22.04.1 LTS (jammy) | 5.7-0ubuntu0.22.04.2 | squid-openssl 5.7-0ubuntu0.22.04.2 | Nov 6, 2023 |
| squid-openssl · Ubuntu 24.04.5 LTS (noble) | 6.1-2ubuntu2 | squid-openssl 6.1-2ubuntu2 | Nov 3, 2023 |
| squid-openssl · Ubuntu 24.10 (oracular) | 6.1-2ubuntu2 | squid-openssl 6.1-2ubuntu2 | Jan 16, 2026 |
| squid-openssl · Ubuntu 25.04 (plucky) | 6.1-2ubuntu2 | squid-openssl 6.1-2ubuntu2 | Jan 16, 2026 |
| squid-purge · Ubuntu 22.04.1 LTS (jammy) | 5.7-0ubuntu0.22.04.2 | squid-purge 5.7-0ubuntu0.22.04.2 | Nov 6, 2023 |
| squid-purge · Ubuntu 24.04.5 LTS (noble) | 6.1-2ubuntu2 | squid-purge 6.1-2ubuntu2 | Nov 3, 2023 |
| squid-purge · Ubuntu 24.10 (oracular) | 6.1-2ubuntu2 | squid-purge 6.1-2ubuntu2 | Jan 16, 2026 |
| squid-purge · Ubuntu 25.04 (plucky) | 6.1-2ubuntu2 | squid-purge 6.1-2ubuntu2 | Jan 16, 2026 |
| squidclient · Ubuntu 22.04.1 LTS (jammy) | 5.7-0ubuntu0.22.04.2 | squidclient 5.7-0ubuntu0.22.04.2 | Nov 6, 2023 |
| squidclient · Ubuntu 24.04.5 LTS (noble) | 6.1-2ubuntu2 | squidclient 6.1-2ubuntu2 | Nov 3, 2023 |
| squidclient · Ubuntu 24.10 (oracular) | 6.1-2ubuntu2 | squidclient 6.1-2ubuntu2 | Jan 16, 2026 |
| squidclient · Ubuntu 25.04 (plucky) | 6.1-2ubuntu2 | squidclient 6.1-2ubuntu2 | Jan 16, 2026 |
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