CVE-2021-31317

Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1
are affected by a Type Confusion in the VDasher constructor of their custom
fork of the rlottie library. A remote attacker might be able to access
Telegram’s heap memory out-of-bounds on a victim device via a malicious
animated sticker.

Bugs

• <http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=988885&gt;