Squid is a caching proxy for the Web supporting HTTP, HTTPS, FTP, and more. Due to a NULL pointer dereference bug Squid is vulnerable to a Denial of Service attack against Squid's Gopher gateway. The gopher protocol is always available and enabled in Squid prior to Squid 6.0.1. Responses triggering this bug are possible to be received from any gopher server, even those without malicious intent. Gopher support has been removed in Squid version 6.0.1. Users are advised to upgrade. Users unable to upgrade should reject all gopher URL requests. References: https://github.com/squid-cache/squid/commit/6ea12e8fb590ac6959e9356a81aa3370576568c3 https://github.com/squid-cache/squid/security/advisories/GHSA-cg5h-v6vc-w33f
Created clustal-omega tracking bugs for this issue: Affects: epel-all [bug 2250231] Affects: fedora-all [bug 2250230] Created squid tracking bugs for this issue: Affects: fedora-all [bug 2250229]
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2024:0046 https://access.redhat.com/errata/RHSA-2024:0046
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.2 Extended Update Support Via RHSA-2024:0072 https://access.redhat.com/errata/RHSA-2024:0072
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2024:0071 https://access.redhat.com/errata/RHSA-2024:0071
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.8 Extended Update Support Via RHSA-2024:0397 https://access.redhat.com/errata/RHSA-2024:0397
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.2 Advanced Update Support Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions Red Hat Enterprise Linux 8.2 Telecommunications Update Service Via RHSA-2024:0772 https://access.redhat.com/errata/RHSA-2024:0772
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions Red Hat Enterprise Linux 8.4 Telecommunications Update Service Via RHSA-2024:0773 https://access.redhat.com/errata/RHSA-2024:0773
This issue has been addressed in the following products: Red Hat Enterprise Linux 8.6 Extended Update Support Via RHSA-2024:0771 https://access.redhat.com/errata/RHSA-2024:0771
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.0 Extended Update Support Via RHSA-2024:1153 https://access.redhat.com/errata/RHSA-2024:1153
This issue has been addressed in the following products: Red Hat Enterprise Linux 7 Via RHSA-2024:1787 https://access.redhat.com/errata/RHSA-2024:1787