Heap-based buffer overflow in xen (Alpine package)

Published: 2015-01-29

Risk	Medium
Patch available	YES
Number of vulnerabilities	1
CVE-ID	CVE-2014-8106
CWE-ID	CWE-122
Exploitation vector	Local
Public exploit	N/A
Vulnerable software	xen (Alpine package) Operating systems & Components / Operating system package or component
Vendor	Alpine Linux Development Team

Security Bulletin

This security bulletin contains one medium risk vulnerability.

1) Heap-based buffer overflow

EUVDB-ID: #VU33056

Risk: Medium

CVSSv4.0: 1.2 [CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:U/U:Green]

CVE-ID: CVE-2014-8106

CWE-ID: CWE-122 - Heap-based Buffer Overflow

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 Heap-based buffer overflow in the Cirrus VGA emulator (hw/display/cirrus_vga.c) in QEMU before 2.2.0. A remote attacker can use vectors related to blit regions. NOTE to trigger heap-based buffer overflow and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.

Mitigation

Install update from vendor's website.

Vulnerable software versions

xen (Alpine package): 4.5.5-r2

CPE2.3

cpe:2.3:a:alpine:xen_alpine_package:4.5.5-r2:*:*:*:*:alpine_linux:*:3.2

External links

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.