Permissions, Privileges, and Access Controls in libvdpau (Alpine package)

1) Permissions, Privileges, and Access Controls

EUVDB-ID: #VU33079

Risk: Low

CVSSv4.0: 6.1 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear]

CVE-ID: CVE-2015-5198

CWE-ID: CWE-264 - Permissions, Privileges, and Access Controls

Exploit availability: No

Description

The vulnerability allows a local non-authenticated attacker to execute arbitrary code.

libvdpau before 1.1.1, when used in a setuid or setgid application, allows local users to gain privileges via unspecified vectors, related to the VDPAU_DRIVER_PATH environment variable.

Mitigation

Install update from vendor's website.

Vulnerable software versions

libvdpau (Alpine package): 0.7-r1 - 1.1-r1

ruby (Alpine package): 2.0.0-r0 - 2.2.2-r0

CPE2.3

• cpe:2.3:o:alpine:libvdpau_alpine_package:0.7-r1:*:*:*:*:alpine_linux:*:2.7
• cpe:2.3:o:alpine:libvdpau_alpine_package:0.8-r0:*:*:*:*:alpine_linux:*:3.1
• cpe:2.3:o:alpine:libvdpau_alpine_package:1.1-r1:*:*:*:*:alpine_linux:*:3.2
• cpe:2.3:o:alpine:ruby_alpine_package:2.0.0-r0:*:*:*:*:alpine_linux:*:2.6
• cpe:2.3:o:alpine:ruby_alpine_package:2.0.0_p247-r1:*:*:*:*:alpine_linux:*:2.6
• cpe:2.3:o:alpine:ruby_alpine_package:2.0.0_p247-r3:*:*:*:*:alpine_linux:*:2.6

External links

https://git.alpinelinux.org/aports/commit/?id=58c926355306673e726679d93b0e0c5b5a3df3c2
https://git.alpinelinux.org/aports/commit/?id=7b46352576c9f78aff928e671a222f2f7fe4da1d
https://git.alpinelinux.org/aports/commit/?id=f910f5627d6d0cef2b970fee2424e5f010cc9629

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.