Medium severity5.5NVD Advisory· Published May 18, 2021· Updated Jun 17, 2026
CVE-2021-31323
CVE-2021-31323
Description
Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Heap Buffer Overflow in the LottieParserImpl::parseDashProperty function of their custom fork of the rlottie library. A remote attacker might be able to access heap memory out-of-bounds on a victim device via a malicious animated sticker.
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Affected products
4- Telegram/Telegram Androiddescription
- Range: <7.1
- Range: <7.1
- Range: <7.1.0 (2090)
Patches
Vulnerability mechanics
References
2- www.shielder.it/advisories/telegram-rlottie-lottieparserimpl-parsedashproperty-heap-buffer-overflow/nvdExploitThird Party Advisory
- www.shielder.it/blog/2021/02/hunting-for-bugs-in-telegrams-animated-stickers-remote-attack-surface/nvdExploitThird Party Advisory
News mentions
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