SB2021021811 - Multiple vulnerabilities in Telegram on MacOS

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Information disclosure (CVE-ID: CVE-2021-27205)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to the affected software stores the local copy of self-destructed messages in a sandbox path. A local user can gain unauthorized access to sensitive information on the system.

2) Information disclosure (CVE-ID: CVE-2021-27204)

The vulnerability allows a local user to gain access to potentially sensitive information.

The vulnerability exists due to the affected software stores the local passcode in cleartext. A local user can gain unauthorized access to sensitive information on the system.

Remediation

Install update from vendor's website.

References

• https://www.inputzero.io/2020/12/telegram-privacy-fails-again.html
• https://www.youtube.com/watch?v=Go-4srm_1fQ
• https://www.youtube.com/watch?v=zEt-_5b4OaA