A vulnerability was found in gnutls versions from 3.5.8 before 3.6.7. A memory corruption (double free) vulnerability in the certificate verification API. Any client or server application that verifies X.509 certificates with GnuTLS 3.5.8 or later is affected.
The product calls free() twice on the same memory address, potentially leading to modification of unexpected memory locations.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Gnutls | Gnu | 3.5.8 (including) | 3.6.7 (excluding) |
| Red Hat Enterprise Linux 8 | RedHat | gnutls-0:3.6.8-8.el8 | * |
| Red Hat Enterprise Linux 8 | RedHat | gnutls-0:3.6.8-8.el8 | * |
| Gnutls28 | Ubuntu | bionic | * |
| Gnutls28 | Ubuntu | cosmic | * |
| Gnutls28 | Ubuntu | disco | * |
| Gnutls28 | Ubuntu | upstream | * |