PT-2018-1728 · Microsoft · Chakracore+1

Published 2018-10-09 · Updated 2020-08-24 · CVE-2018-8473

Positive Technologies (AI Summary)

CVSS v2.0

7.6

High

Base vector

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

Name of the Vulnerable Software and Affected Versions: Microsoft Edge (affected versions not specified) ChakraCore (affected versions not specified)

Description: The issue is caused by a buffer overflow in memory due to improper handling of JavaScript scripts by the ChakraCore engine in Microsoft Edge. This could allow a remote attacker to execute arbitrary code using a specially crafted web page. The vulnerability can corrupt memory, enabling an attacker to gain the same user rights as the current user. If the current user has administrative rights, an attacker could take control of the affected system, install programs, view, change, or delete data, or create new accounts with full user rights.

Recommendations: For Microsoft Edge, update to a version that properly accesses objects in memory to prevent the vulnerability. For ChakraCore, ensure that the JavaScript engine is updated to handle scripts without causing a buffer overflow in memory. At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Memory Corruption

Buffer Overflow

Weakness Enumeration

CWE-787

CWE-119

Related Identifiers

BDU:2018-01327

CVE-2018-8473

Affected Products

Chakracore

Edge

References · 7

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8473 · Vendor Advisory
• https://bdu.fstec.ru/vul/2018-01327 · Security Note
• https://osv.dev/vulnerability/CVE-2018-8473 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2018-8473 · Security Note
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-8473 · Security Note
• http://securityfocus.com/bid/105459 · Note
• http://securitytracker.com/id/1041825 · Note