CVE-2021-30496 Information

Description

The Telegram app 7.6.2 for iOS allows remote authenticated users to cause a denial of service (application crash) if the victim pastes an attacker-supplied message (e.g. in the Persian language) into a channel or group. The crash occurs in MtProtoKitFramework.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H

Reference

https://t.me/joinchat/bJ9cnUosVh03ZTI0 https://gist.github.com/raminfp/bf64c2974ee6949787329749148a4b31

Attack Complexity

LOW

Privileges Required

LOW

User Interaction Required

LOW

Scope

REQUIRED

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

5.7