A vulnerability exists where a connection requiring TLS incorrectly reuses an existing unencrypted connection from the same connection pool. If an initial transfer is made in clear-text (via IMAP, SMTP, or POP3), a subsequent request to that same host bypasses the TLS requirement and instead transmit data unencrypted.
Weakness
The product does not validate, or incorrectly validates, a certificate.
Affected Software
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Curl | Haxx | 7.20.0 (including) | 8.20.0 (excluding) |
| Red Hat Hardened Images | RedHat | curl-main-8.20.0-0.1.hum1 | * |
| Curl | Ubuntu | devel | * |
| Curl | Ubuntu | esm-infra-legacy/trusty | * |
| Curl | Ubuntu | esm-infra-legacy/xenial | * |
| Curl | Ubuntu | esm-infra/bionic | * |
| Curl | Ubuntu | esm-infra/focal | * |
| Curl | Ubuntu | esm-infra/xenial | * |
| Curl | Ubuntu | jammy | * |
| Curl | Ubuntu | noble | * |
| Curl | Ubuntu | questing | * |
| Curl | Ubuntu | resolute | * |
| Curl | Ubuntu | upstream | * |