Out-of-bounds write in gst-plugins-base1 (Alpine package)

1) Out-of-bounds write

EUVDB-ID: #VU32106

Risk: Low

CVSSv3.1: 4.8 [CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C]

CVE-ID: CVE-2017-5842

CWE-ID: CWE-787 - Out-of-bounds write

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to perform a denial of service (DoS) attack.

The html_context_handle_element function in gst/subparse/samiparse.c in gst-plugins-base in GStreamer before 1.10.3 allows remote attackers to cause a denial of service (out-of-bounds write) via a crafted SMI file, as demonstrated by OneNote_Manager.smi.

Mitigation

Install update from vendor's website.

Vulnerable software versions

gst-plugins-base1 (Alpine package): 1.8.1-r0

External links

http://git.alpinelinux.org/aports/commit/?id=6ab23d65ce6f9c882e4efe3db6202a2b3ec58343
http://git.alpinelinux.org/aports/commit/?id=8901f4a1a9cb2e4c61387c538b5ceb2be48cebf1

Q & A

Can this vulnerability be exploited remotely?

No. This vulnerability can be exploited locally. The attacker should have authentication credentials and successfully authenticate on the system.

Is there known malware, which exploits this vulnerability?

No. We are not aware of malware exploiting this vulnerability.