A buffer over-read was discovered in libntlmauth in Squid 2.5 through 5.6. Due to incorrect integer-overflow protection, the SSPI and SMB authentication helpers are vulnerable to reading unintended memory locations. In some configurations, cleartext credentials from these locations are sent to a client. This is fixed in 5.7.
The product performs a calculation that can produce an integer overflow or wraparound, when the logic assumes that the resulting value will always be larger than the original value. This can introduce other weaknesses when the calculation is used for resource management or execution control.
Name | Vendor | Start Version | End Version |
---|---|---|---|
Squid | Squid-cache | 2.5 (including) | 5.7 (excluding) |
Red Hat Enterprise Linux 7 | RedHat | squid-7:3.5.20-17.el7_9.8 | * |
Red Hat Enterprise Linux 8 | RedHat | squid:4-8060020220928033422.ad008a3a | * |
Red Hat Enterprise Linux 8.1 Update Services for SAP Solutions | RedHat | squid:4-8010020220928161558.c27ad7f8 | * |
Red Hat Enterprise Linux 8.2 Extended Update Support | RedHat | squid:4-8020020220928160856.4cda2c84 | * |
Red Hat Enterprise Linux 8.4 Extended Update Support | RedHat | squid:4-8040020220928034758.522a0ee4 | * |
Red Hat Enterprise Linux 9 | RedHat | squid-7:5.2-1.el9_0.2 | * |
Squid | Ubuntu | devel | * |
Squid | Ubuntu | focal | * |
Squid | Ubuntu | jammy | * |
Squid | Ubuntu | kinetic | * |
Squid | Ubuntu | lunar | * |
Squid | Ubuntu | mantic | * |
Squid | Ubuntu | noble | * |
Squid | Ubuntu | trusty | * |
Squid | Ubuntu | upstream | * |
Squid | Ubuntu | xenial | * |
Squid3 | Ubuntu | bionic | * |
Squid3 | Ubuntu | esm-infra/xenial | * |
Squid3 | Ubuntu | trusty | * |
Squid3 | Ubuntu | xenial | * |