CVE-2015-8620

high

Description

Heap-based buffer overflow in the Avast virtualization driver (aswSnx.sys) in Avast Internet Security, Pro Antivirus, Premier, and Free Antivirus before 11.1.2253 allows local users to gain privileges via a Unicode file path in an IOCTL request.

References

https://www.nettitude.co.uk/exploiting-a-kernel-paged-pool-buffer-overflow-in-avast-virtualization-driver/

https://euvd.enisa.europa.eu/vulnerability/EUVD-2015-8497

http://www.securitytracker.com/id/1035093

http://seclists.org/fulldisclosure/2016/Feb/94

http://packetstormsecurity.com/files/135859/Avast-11.1.2245-Heap-Overflow.html

Details

Source: Mitre, NVD

Published: 2016-04-13

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 7.2

Vector: CVSS2#AV:L/AC:L/Au:N/C:C/I:C/A:C

Severity: High

CVSS v3

Base Score: 7.8

Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H