SB2023092851 - Remote code execution in libvpx

Description

This security bulletin contains information about 2 secuirty vulnerabilities.

1) Heap-based buffer overflow (CVE-ID: CVE-2023-5217)

The vulnerability allows a remote attacker to compromise vulnerable system.

The vulnerability exists due to a boundary error when processing untrusted HTML content in vp8 encoding in libvpx. A remote attacker can create a specially crafted web page, trick the victim into opening it, trigger a heap-based buffer overflow and execute arbitrary code on the target system.

Note, the vulnerability is being actively exploited in the wild.

2) Heap-based buffer overflow (CVE-ID: CVE-2023-6349)

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

The vulnerability exists due to a boundary error. A remote attacker can pass specially crafted data to the application, 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.

Remediation

Install update from vendor's website.

References

• https://github.com/webmproject/libvpx/commit/3fbd1dca6a4d2dad332a2110d646e4ffef36d590
• https://github.com/webmproject/libvpx/commit/af6dedd715f4307669366944cca6e0417b290282
• https://github.com/webmproject/libvpx/releases/tag/v1.13.1
• https://github.com/webmproject/libvpx/commit/263682c9a29395055f3b3afe2d97be1828a6223f
• https://crbug.com/webm/1642