SB2020071101 - Heap-based buffer overflow in ffmpeg (Alpine package)

Description

This security bulletin contains information about 1 security vulnerability.

1) Heap-based buffer overflow (CVE-ID: CVE-2020-14212)

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

The vulnerability exists due to a boundary error within the avio_get_str in libavformat/aviobuf.c because dnn_backend_native.c calls ff_dnn_load_model_native and a certain index check is omitted. A remote attacker can create a specially crafted file, trick the victim into opening it, trigger 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://git.alpinelinux.org/aports/commit/?id=7a5e481ae27a0e4dc839f7f494d3306259bc3e7c
• https://git.alpinelinux.org/aports/commit/?id=c1ca90f3b7643eebc12d2c6604408afbe6056e2f