Buffer overflow in ffmpeg (Alpine package)

1) Buffer overflow

EUVDB-ID: #VU19232

Risk: Low

CVSSv4.0: 5.5 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:P/U:Clear]

CVE-ID: CVE-2019-12730

CWE-ID: CWE-119 - Memory corruption

Exploit availability: No

Description

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

The vulnerability exists due to a boundary error in aa_read_header() function in libavformat/aadec.c. A remote attacker can create a specially crafted media file, trick the victim into opening it, trigger memory corruption and crash the affected application.

Mitigation

Install update from vendor's website.

Vulnerable software versions

ffmpeg (Alpine package): 0.5-r0 - 4.0.4-r0

CPE2.3

• cpe:2.3:a:alpine:ffmpeg_alpine_package:0.5-r0:*:*:*:*:alpine_linux:*:1.9
• cpe:2.3:a:alpine:ffmpeg_alpine_package:3.3.2-r0:*:*:*:*:alpine_linux:*:3.6
• cpe:2.3:a:alpine:ffmpeg_alpine_package:3.3.3-r0:*:*:*:*:alpine_linux:*:3.6

External links

https://git.alpinelinux.org/aports/commit/?id=f3d13d27653687516adefe66adbfd239dee57f2e
https://git.alpinelinux.org/aports/commit/?id=228dc16f637162cbf1a241b4f1d71606ba5e8888
https://git.alpinelinux.org/aports/commit/?id=c0e9c2726f23f0410b383f030c4e2c8ab6b5090f
https://git.alpinelinux.org/aports/commit/?id=cf78a820406ae4481e937bc2fba252ff79c89a09
https://git.alpinelinux.org/aports/commit/?id=859fd99d06049c009c8b745626511cd681061a99

Q & A

Can this vulnerability be exploited remotely?

Yes. This vulnerability can be exploited by a remote non-authenticated attacker via the Internet.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability. However, proof of concept for this vulnerability is available.