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[email protected]CVE-2015-8620

HistoryApr 13, 2016 - 2:59 p.m.

CVE-2015-8620

2016-04-1314:59:03

CWE-119

[email protected]

web.nvd.nist.gov

cve-2015-8620

avast

buffer overflow

aswsnx.sys

security vulnerability

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.8 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.0004 Low

EPSS

Percentile

15.6%

JSON

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.

Affected configurations

NVD

Node

avastavast_free_antivirusRange≤11.1.2245

avastavast_internet_securityRange≤11.1.2245

avastavast_premierRange≤11.1.2245

avastavast_pro_antivirusRange≤11.1.2245

CPENameOperatorVersion
avast:avast_free_antivirusavast avast free antivirusle11.1.2245
avast:avast_internet_securityavast avast internet securityle11.1.2245
avast:avast_premieravast avast premierle11.1.2245
avast:avast_pro_antivirusavast avast pro antivirusle11.1.2245

CPE	Name	Operator	Version
avast:avast_free_antivirus	avast avast free antivirus	le	11.1.2245
avast:avast_internet_security	avast avast internet security	le	11.1.2245
avast:avast_premier	avast avast premier	le	11.1.2245
avast:avast_pro_antivirus	avast avast pro antivirus	le	11.1.2245

References

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

seclists.org/fulldisclosure/2016/Feb/94

www.securitytracker.com/id/1035093

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

Social References

7.8 High

CVSS3

Attack Vector

LOCAL

Attack Complexity

LOW

Privileges Required

LOW

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

HIGH

Integrity Impact

HIGH

Availability Impact

HIGH

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

7.8 High

AI Score

Confidence

High

7.2 High

CVSS2

Access Vector

Access Complexity

Authentication

NONE

Confidentiality Impact

COMPLETE

Integrity Impact

COMPLETE

Availability Impact

COMPLETE

AV:L/AC:L/Au:N/C:C/I:C/A:C

0.0004 Low

EPSS

Percentile

15.6%

JSON

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