CVE-2021-31320

2021-05-1819:44:14

mitre

www.cve.org

heap buffer overflow

vgradientcache

rlottie

animated sticker

AI Score

6.7

Confidence

High

EPSS

0.001

Percentile

47.4%

JSON

Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Heap Buffer Overflow in the VGradientCache::generateGradientColorTable function of their custom fork of the rlottie library. A remote attacker might be able to overwrite heap memory out-of-bounds on a victim device via a malicious animated sticker.