SB2021012406 - Debian update for vlc

Description

This security bulletin contains information about 4 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2020-26664)

The vulnerability allows a remote attacker to execute arbitrary code on the target system.

The vulnerability exists due to a boundary error in EbmlTypeDispatcher::send() function in VideoLAN VLC media player. A remote attacker can create a specially crafted .mkv file, truck the victim to open it, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

2) Untrusted Pointer Dereference (CVE-ID: CVE-2021-25804)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack. 

The vulnerability exists due to untrusted pointer dereference. A remote authenticated attacker can create a specially crafted file, trick the victim into opening it and cause a denial of service condition on the system.

3) Out-of-bounds read (CVE-ID: CVE-2021-25801)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the __Parse_indx component. A remote authenticated attacker can create a specially crafted .avi file, trick the victim into opening it, trigger out-of-bounds read error and cause a denial of service condition on the system.

4) Out-of-bounds read (CVE-ID: CVE-2021-25803)

The vulnerability allows a remote attacker to perform a denial of service (DoS) attack.

The vulnerability exists due to a boundary condition within the vlc_input_attachment_New component. A remote authenticated attacker can create a specially crafted .avi file, trick the victim into opening it, trigger out-of-bounds read error and cause a denial of service condition on the system.

Remediation

Install update from vendor's website.

References

• https://www.debian.org/security/2021/dsa-4834