PT-2020-4692 · Microsoft · Chakra Scripting Engine+1

Published 2020-11-10 · Updated 2023-12-31 · CVE-2020-17048

Positive Technologies (AI Summary)

CVSS v3.1

8.1

High

Base vector

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

Name of the Vulnerable Software and Affected Versions Chakra Scripting Engine (affected versions not specified)

Description The issue is related to a memory corruption vulnerability in the Chakra scripting engine, which can be caused by a buffer overflow. This can allow a remote attacker to disclose protected information. The vulnerability may also lead to remote code execution due to type confusion in the Chakra array iterator.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

RCE

Out of bounds Read

Memory Corruption

Weakness Enumeration

CWE-125

CWE-787

Related Identifiers

BDU:2020-05244

CVE-2020-17048

GHSA-VPC2-7XMF-PPMF

ZDI-20-1370

Affected Products

Chakra Scripting Engine

Edge

References · 13

• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2020-17048 · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2020-17048 · Security Note
• https://bdu.fstec.ru/vul/2020-05244 · Security Note
• https://msrc.microsoft.com/update-guide/vulnerability/CVE-2020-17048 · Vendor Advisory
• https://osv.dev/vulnerability/CVE-2020-17048 · Vendor Advisory
• https://osv.dev/vulnerability/GHSA-vpc2-7xmf-ppmf · Vendor Advisory
• http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2020-17048 · Security Note
• https://zerodayinitiative.com/advisories/ZDI-20-1370 · Security Note
• https://github.com/chakra-core/ChakraCore/pull/6528 · Note
• https://github.com/chakra-core/ChakraCore/pull/6528/commits/90e222e9a9ba64bd808666f44e6a0913d6318f78 · Note
• https://t.me/cvenotify/6054 · Telegram Post
• https://cybersecurity-help.cz/vdb/SB2020111030 · Note
• https://t.me/cvenotify/5546 · Telegram Post