PT-2016-2497 · Microsoft · Jscript 9+5

Published 2016-07-12 · Updated 2022-05-14 · CVE-2016-3260

Positive Technologies (AI Summary)

CVSS v2.0

9.3

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Microsoft Internet Explorer 11 (affected versions not specified) Microsoft Edge (affected versions not specified) JScript 9 (affected versions not specified) VBScript (affected versions not specified) Chakra JavaScript engine (affected versions not specified)

Description The issue allows remote attackers to execute arbitrary code or cause a denial of service via a crafted web site. This is due to memory corruption in the scripting engines. The vulnerabilities could corrupt memory, enabling an attacker to execute arbitrary code in the context of the current user. If the current user has administrative rights, an attacker could take control of the affected system, install programs, view or modify data, or create new accounts.

Recommendations For Microsoft Internet Explorer 11, update to a version that includes the fix for the scripting engine memory corruption issue. For Microsoft Edge, update to a version that includes the fix for the scripting engine memory corruption issue. As a temporary workaround, consider restricting access to potentially vulnerable web sites to minimize the risk of exploitation. Avoid using the affected scripting engines until the issue is resolved.

Fix

RCE

DoS

Buffer Overflow

Weakness Enumeration

CWE-119

Related Identifiers

BDU:2016-01888

CVE-2016-3260

GHSA-H6G3-73H7-CHXP

Affected Products

Chakra Javascript Engine

Edge

Internet Explorer

Jscript 9

Internet Explorer 11

Vbscript

References · 18

• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-085 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-h6g3-73h7-chxp · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2016-3260 · Security Note
• https://bdu.fstec.ru/vul/2016-01888 · Security Note
• https://docs.microsoft.com/en-us/security-updates/securitybulletins/2016/ms16-084 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2016-3260 · Security Note
• https://osv.dev/vulnerability/CVE-2016-3260 · Vendor Advisory
• https://github.com/chakra-core/ChakraCore · Note
• https://github.com/chakra-core/ChakraCore/pull/1291 · Note
• https://github.com/chakra-core/ChakraCore/commit/17f3d4a4852dcc9e48de7091685b1862afb9f307 · Note
• http://technet.microsoft.com/security/bulletin/MS16-084 · Note
• http://securitytracker.com/id/1036283 · Note
• http://technet.microsoft.com/security/bulletin/MS16-085 · Note
• http://technet.microsoft.com/library/security/ms16-085 · Note
• http://securityfocus.com/bid/91580 · Note