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

1) Out-of-bounds read

EUVDB-ID: #VU33039

Risk: Medium

CVSSv4.0: 6.6 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2017-5847

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 gst_asf_demux_process_ext_content_desc function in gst/asfdemux/gstasfdemux.c in gst-plugins-ugly. A remote attacker can create vectors involving extended content descriptors, 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

drupal7 (Alpine package): 7.37-r0 - 7.69-r0

gst-plugins-ugly (Alpine package): 1.14.4-r1

gst-plugins-ugly (Alpine package):

CPE2.3

• cpe:2.3:o:alpine:drupal7_alpine_package:7.37-r0:*:*:*:*:alpine_linux:*:3.2
• cpe:2.3:o:alpine:drupal7_alpine_package:7.43-r0:*:*:*:*:alpine_linux:*:3.3
• cpe:2.3:o:alpine:drupal7_alpine_package:7.52-r0:*:*:*:*:alpine_linux:*:3.4
• cpe:2.3:o:alpine:gst-plugins-ugly_alpine_package:1.14.4-r1:*:*:*:*:alpine_linux:*:3.9
• cpe:2.3:o:alpine:gst-plugins-ugly_alpine_package::*:*:*:*:alpine_linux:*:*

External links

https://git.alpinelinux.org/aports/commit/?id=497a285ee1242b9bb7295c4bd420d2e482ef3f62
https://git.alpinelinux.org/aports/commit/?id=01c266e211afee4f4248e5ebb976b1be1e8d332b
https://git.alpinelinux.org/aports/commit/?id=73e74714f6cc4d04a6eba237aa0e5658c15c705a
https://git.alpinelinux.org/aports/commit/?id=b8a7d654872e2cbbcd72060ff253170be3c8f1ba

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.