Squid is a caching proxy for the Web. Due to an Improper Validation of Specified Index bug, Squid versions 3.3.0.1 through 5.9 and 6.0 prior to 6.4 compiled using --with-openssl
are vulnerable to a Denial of Service attack against SSL Certificate validation. This problem allows a remote server to perform Denial of Service against Squid Proxy by initiating a TLS Handshake with a specially crafted SSL Certificate in a server certificate chain. This attack is limited to HTTPS and SSL-Bump. This bug is fixed in Squid version 6.4. In addition, patches addressing this problem for the stable releases can be found in Squids patch archives. Those who you use a prepackaged version of Squid should refer to the package vendor for availability information on updated packages.
The product reads data past the end, or before the beginning, of the intended buffer.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Squid | Squid-cache | 3.3.0.1 (including) | 6.4 (excluding) |
Red Hat Enterprise Linux 7 | RedHat | squid-7:3.5.20-17.el7_9.10 | * |
Red Hat Enterprise Linux 8 | RedHat | squid:4-8090020231207155957.a75119d5 | * |
Red Hat Enterprise Linux 8.2 Advanced Update Support | RedHat | squid:4-8020020240122164331.4cda2c84 | * |
Red Hat Enterprise Linux 8.2 Telecommunications Update Service | RedHat | squid:4-8020020240122164331.4cda2c84 | * |
Red Hat Enterprise Linux 8.2 Update Services for SAP Solutions | RedHat | squid:4-8020020240122164331.4cda2c84 | * |
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support | RedHat | squid:4-8040020240122165847.522a0ee4 | * |
Red Hat Enterprise Linux 8.4 Telecommunications Update Service | RedHat | squid:4-8040020240122165847.522a0ee4 | * |
Red Hat Enterprise Linux 8.4 Update Services for SAP Solutions | RedHat | squid:4-8040020240122165847.522a0ee4 | * |
Red Hat Enterprise Linux 8.6 Extended Update Support | RedHat | squid:4-8060020231222131040.ad008a3a | * |
Red Hat Enterprise Linux 8.8 Extended Update Support | RedHat | squid:4-8080020231222130009.63b34585 | * |
Red Hat Enterprise Linux 9 | RedHat | squid-7:5.5-6.el9_3.5 | * |
Red Hat Enterprise Linux 9.0 Extended Update Support | RedHat | squid-7:5.2-1.el9_0.4 | * |
Red Hat Enterprise Linux 9.2 Extended Update Support | RedHat | squid-7:5.5-5.el9_2.3 | * |
Squid | Ubuntu | bionic | * |
Squid | Ubuntu | devel | * |
Squid | Ubuntu | jammy | * |
Squid | Ubuntu | lunar | * |
Squid | Ubuntu | mantic | * |
Squid | Ubuntu | noble | * |
Squid | Ubuntu | oracular | * |
Squid | Ubuntu | trusty | * |
Squid | Ubuntu | xenial | * |
Squid3 | Ubuntu | bionic | * |
Squid3 | Ubuntu | trusty | * |
Squid3 | Ubuntu | xenial | * |