Out-of-bounds read in gst-plugins-good (Alpine package)

1) Out-of-bounds read

EUVDB-ID: #VU31991

Risk: Medium

CVSSv3.1: 6.5 [AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5840

CWE-ID: CWE-125 - Out-of-bounds read

Exploit availability: No

Description

The vulnerability allows a remote attacker to gain access to potentially sensitive information.

The vulnerability exists due to a boundary error in the qtdemux_parse_samples function in gst/isomp4/qtdemux.c in gst-plugins-good. A remote attacker can create vectors involving the current stts index, trick the victim into opening it, trigger out-of-bounds read error and read contents of memory on the system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

gst-plugins-good (Alpine package): 1.16.2-r2

External links

http://git.alpinelinux.org/aports/commit/?id=3571afbf18131cb6b65d4853100186bd34843820
http://git.alpinelinux.org/aports/commit/?id=6b8af9784ef78bd59bb8bdec40d2231ee0439815
http://git.alpinelinux.org/aports/commit/?id=126b7fb34316979070ba2441c8ea4cb401bf3621
http://git.alpinelinux.org/aports/commit/?id=65a9c6cbf0d7b61eb2ac4941fc9e20ed1316638e
http://git.alpinelinux.org/aports/commit/?id=05b1347bb9070f0dbeb6d7625a91d2b22ac35eaf

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.