CWE
843
Advisory Published
Updated

CVE-2021-31317

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 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.

Credit: cve@mitre.org

Affected SoftwareAffected VersionHow 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-2021-31317.

  • What is the affected software?

    The affected software includes Telegram Android versions before 7.1.0 (2090), Telegram iOS versions before 7.1, and Telegram macOS versions before 7.1.

  • What is the severity level of CVE-2021-31317?

    The severity level of CVE-2021-31317 is medium with a severity value of 5.5.

  • What is the vulnerability description?

    Telegram Android, iOS, and macOS versions before 7.1 are affected by a Type Confusion vulnerability in the VDasher constructor of their custom fork of the rlottie library.

  • How can a remote attacker exploit this vulnerability?

    A remote attacker might be able to access Telegram's heap memory out-of-bounds on a victim device via a malicious animation.

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