Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to an Incorrect Check of Function Return Value bug Squid is vulnerable to a Denial of Service attack against its Helper process management. This bug is fixed by Squid version 6.5. Users are advised to upgrade. There are no known workarounds for this vulnerability.
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squid" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squid-cgi" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squid-cgi-dbgsym" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squid-common" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squid-dbg" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squid-dbgsym" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squid-purge" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squid-purge-dbgsym" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squid3" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squidclient" }, { "binary_version": "3.5.12-1ubuntu7.16+esm3", "binary_name": "squidclient-dbgsym" } ] }
{ "availability": "Available with Ubuntu Pro (Infra-only): https://ubuntu.com/pro", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "3.5.27-1ubuntu1.14+esm2", "binary_name": "squid" }, { "binary_version": "3.5.27-1ubuntu1.14+esm2", "binary_name": "squid-cgi" }, { "binary_version": "3.5.27-1ubuntu1.14+esm2", "binary_name": "squid-common" }, { "binary_version": "3.5.27-1ubuntu1.14+esm2", "binary_name": "squid-dbg" }, { "binary_version": "3.5.27-1ubuntu1.14+esm2", "binary_name": "squid-purge" }, { "binary_version": "3.5.27-1ubuntu1.14+esm2", "binary_name": "squid3" }, { "binary_version": "3.5.27-1ubuntu1.14+esm2", "binary_name": "squidclient" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "4.10-1ubuntu1.9", "binary_name": "squid" }, { "binary_version": "4.10-1ubuntu1.9", "binary_name": "squid-cgi" }, { "binary_version": "4.10-1ubuntu1.9", "binary_name": "squid-cgi-dbgsym" }, { "binary_version": "4.10-1ubuntu1.9", "binary_name": "squid-common" }, { "binary_version": "4.10-1ubuntu1.9", "binary_name": "squid-dbgsym" }, { "binary_version": "4.10-1ubuntu1.9", "binary_name": "squid-purge" }, { "binary_version": "4.10-1ubuntu1.9", "binary_name": "squid-purge-dbgsym" }, { "binary_version": "4.10-1ubuntu1.9", "binary_name": "squidclient" }, { "binary_version": "4.10-1ubuntu1.9", "binary_name": "squidclient-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squid" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squid-cgi" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squid-cgi-dbgsym" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squid-common" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squid-dbgsym" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squid-openssl" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squid-openssl-dbgsym" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squid-purge" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squid-purge-dbgsym" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squidclient" }, { "binary_version": "5.7-0ubuntu0.22.04.3", "binary_name": "squidclient-dbgsym" } ] }
{ "availability": "No subscription required", "ubuntu_priority": "medium", "binaries": [ { "binary_version": "6.5-1ubuntu1", "binary_name": "squid" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squid-cgi" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squid-cgi-dbgsym" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squid-common" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squid-dbgsym" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squid-openssl" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squid-openssl-dbgsym" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squid-purge" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squid-purge-dbgsym" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squidclient" }, { "binary_version": "6.5-1ubuntu1", "binary_name": "squidclient-dbgsym" } ] }