Squid before 4.13 and 5.x before 5.0.4 allows a trusted peer to perform Denial of Service by consuming all available CPU cycles during handling of a crafted Cache Digest response message. This only occurs when cache_peer is used with the cache digests feature. The problem exists because peerDigestHandleReply() livelocking in peer_digest.cc mishandles EOF.
| Product | Vendor Advisory | Solution File | Added | Published |
|---|---|---|---|---|
| Alma_linux | — | Upgrade libecap-develUpgrade libecap | May 4, 2022 | Aug 24, 2020 |
| Alpine Linux | — | Upgrade squid | Jan 4, 2021 | Aug 24, 2020 |
| Amazon Linux Ami 2 | — | Upgrade squid-migration-scriptUpgrade squidUpgrade squid-debuginfoUpgrade squid-sysvinit | Oct 28, 2020 | Aug 24, 2020 |
| Amazon_linux | — | Upgrade squid | Nov 18, 2020 | Aug 24, 2020 |
| Centos_linux | — | Upgrade squidUpgrade libecap-debugsourceUpgrade libecap-debuginfoUpgrade libecap-develUpgrade libecapUpgrade squid-sysvinitUpgrade squid-migration-scriptUpgrade squid-debugsourceUpgrade squid-debuginfo | Oct 1, 2020 | Aug 24, 2020 |
| Debian | — | Upgrade squid | Aug 31, 2020 | Aug 24, 2020 |
| Huawei Euleros 2_0_sp2 | — | Upgrade squid-migration-scriptUpgrade squid | Nov 3, 2020 | Aug 24, 2020 |
| Huawei Euleros 2_0_sp3 | — | Upgrade squid-migration-scriptUpgrade squid | Sep 28, 2020 | Aug 24, 2020 |
| Huawei Euleros 2_0_sp5 | — | Upgrade squid | Nov 2, 2020 | Aug 24, 2020 |
| Huawei Euleros 2_0_sp8 | — | Upgrade squid | Sep 29, 2020 | Aug 24, 2020 |
| Oracle Solaris | — | Upgrade web/proxy/squid to version 4.13-11.4.26.0.1.75.1 on Solaris 11.4 | Jan 19, 2021 | Aug 24, 2020 |
| Oracle_linux | — | Upgrade squid-sysvinitUpgrade squid-migration-scriptUpgrade libecap-develUpgrade squidUpgrade libecap | Oct 9, 2020 | Aug 23, 2020 |
| Redhat_linux | — | Upgrade libecap-debuginfoUpgrade libecapUpgrade squidUpgrade libecap-develUpgrade squid-sysvinitUpgrade squid-migration-scriptUpgrade libecap-debugsourceUpgrade squid-debugsourceUpgrade squid-debuginfoNo solution exists | Oct 1, 2020 | Aug 24, 2020 |
| Rocky_linux | — | Upgrade libecap-debugsourceUpgrade libecap-debuginfoUpgrade libecapUpgrade libecap-devel | Mar 12, 2024 | Aug 24, 2020 |
| Suse | — | Upgrade squidUpgrade squid3 | Sep 3, 2020 | Aug 24, 2020 |
| Ubuntu | — | Upgrade squid | Aug 28, 2020 | Aug 24, 2020 |
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