What is the vulnerability ID for this Telegram issue?

The vulnerability ID for this Telegram issue is CVE-2021-31322.

What is the severity of CVE-2021-31322?

The severity of CVE-2021-31322 is medium, with a severity score of 5.5.

Which versions of Telegram are affected by CVE-2021-31322?

Telegram Android versions prior to 7.1.0 (2090), Telegram iOS versions prior to 7.1, and Telegram macOS versions prior to 7.1 are affected by CVE-2021-31322.

What is the vulnerability description of CVE-2021-31322?

CVE-2021-31322 is a Heap Buffer Overflow vulnerability in the LOTGradient::populate function of Telegram's custom fork of the rlottie library, which may allow a remote attacker to access heap memory out-of-bounds on a victim device via a malicious payload.

How can I fix CVE-2021-31322?

To mitigate CVE-2021-31322, it is recommended to update Telegram Android to version 7.1.0 (2090) or later, Telegram iOS to version 7.1 or later, and Telegram macOS to version 7.1 or later.

Vulnerability/
CVE-2021-31322

medium

5.5

CWE

787 119

18/5/2021

3/8/2024

CVE-2021-31322: Buffer Overflow

First published: Tue May 18 2021(Updated: )

Telegram Android <7.1.0 (2090), Telegram iOS <7.1, and Telegram macOS <7.1 are affected by a Heap Buffer Overflow in the LOTGradient::populate 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.

Credit: cve@mitre.org

Affected Software	Affected Version	How to fix
Telegram Telegram	<7.1.0
Telegram Telegram	<7.1.0
Telegram Telegram	<7.1.0

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Frequently Asked Questions

What is the vulnerability ID for this Telegram issue?
The vulnerability ID for this Telegram issue is CVE-2021-31322.
What is the severity of CVE-2021-31322?
The severity of CVE-2021-31322 is medium, with a severity score of 5.5.
Which versions of Telegram are affected by CVE-2021-31322?
Telegram Android versions prior to 7.1.0 (2090), Telegram iOS versions prior to 7.1, and Telegram macOS versions prior to 7.1 are affected by CVE-2021-31322.
What is the vulnerability description of CVE-2021-31322?
CVE-2021-31322 is a Heap Buffer Overflow vulnerability in the LOTGradient::populate function of Telegram's custom fork of the rlottie library, which may allow a remote attacker to access heap memory out-of-bounds on a victim device via a malicious payload.
How can I fix CVE-2021-31322?
To mitigate CVE-2021-31322, it is recommended to update Telegram Android to version 7.1.0 (2090) or later, Telegram iOS to version 7.1 or later, and Telegram macOS to version 7.1 or later.

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