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CVE-2019-10044

Published: 25 March 2019

Telegram Desktop before 1.5.12 on Windows, and the Telegram applications for Android, iOS, and Linux, is vulnerable to an IDN homograph attack when displaying messages containing URLs. This occurs because the application produces a clickable link even if (for example) Latin and Cyrillic characters exist in the same domain name, and the available font has an identical representation of characters from different alphabets.

Priority

Medium

Cvss 3 Severity Score

8.8

Score breakdown

Status

Package Release Status
telegram-desktop
Launchpad, Ubuntu, Debian
impish Not vulnerable

jammy Not vulnerable

lunar Does not exist

bionic Needs triage

focal Not vulnerable
(2.1.7+ds-2~ubuntu20.04.1)
groovy Not vulnerable

hirsute Not vulnerable

kinetic Not vulnerable

trusty Does not exist

upstream
Released (1.8.4-1)
xenial Does not exist

mantic Does not exist

Severity score breakdown

Parameter Value
Base score 8.8
Attack vector Network
Attack complexity Low
Privileges required None
User interaction Required
Scope Unchanged
Confidentiality High
Integrity impact High
Availability impact High
Vector CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H