A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy 1.10.0. A specially crafted HTTP header can trigger reuse of previously freed memory, which leads to memory corruption and could lead to remote code execution. An attacker needs to make an unauthenticated HTTP request to trigger this vulnerability.
The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Tinyproxy | Tinyproxy_project | 1.10.0 (including) | 1.10.0 (including) |
| Tinyproxy | Tinyproxy_project | 1.11.1 (including) | 1.11.1 (including) |
| Tinyproxy | Ubuntu | devel | * |
| Tinyproxy | Ubuntu | esm-apps/bionic | * |
| Tinyproxy | Ubuntu | esm-apps/focal | * |
| Tinyproxy | Ubuntu | esm-apps/jammy | * |
| Tinyproxy | Ubuntu | esm-apps/noble | * |
| Tinyproxy | Ubuntu | esm-apps/xenial | * |
| Tinyproxy | Ubuntu | esm-infra-legacy/trusty | * |
| Tinyproxy | Ubuntu | focal | * |
| Tinyproxy | Ubuntu | jammy | * |
| Tinyproxy | Ubuntu | mantic | * |
| Tinyproxy | Ubuntu | noble | * |
| Tinyproxy | Ubuntu | oracular | * |
| Tinyproxy | Ubuntu | plucky | * |
| Tinyproxy | Ubuntu | upstream | * |