PJSIP is a free and open source multimedia communication library written in C. A denial-of-service vulnerability affects applications on a 32-bit systems that use PJSIP versions 2.12 and prior to play/read invalid WAV files. The vulnerability occurs when reading WAV file data chunks with length greater than 31-bit integers. The vulnerability does not affect 64-bit apps and should not affect apps that only plays trusted WAV files. A patch is available on the master branch of the pjsip/project GitHub repository. As a workaround, apps can reject a WAV file received from an unknown source or validate the file first.
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.
| Name | Vendor | Start Version | End Version |
|---|---|---|---|
| Pjsip | Teluu | * | 2.12 (including) |
| Asterisk | Ubuntu | bionic | * |
| Asterisk | Ubuntu | impish | * |
| Asterisk | Ubuntu | kinetic | * |
| Asterisk | Ubuntu | lunar | * |
| Asterisk | Ubuntu | mantic | * |
| Pjproject | Ubuntu | bionic | * |
| Ring | Ubuntu | bionic | * |
| Ring | Ubuntu | impish | * |
| Ring | Ubuntu | lunar | * |
| Ring | Ubuntu | mantic | * |