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Security Advisories: GSA_kwCzR0hTQS04cjVjLTh2OTctZzd2aM4AATiw

ChakraCore vulnerable to privilege escalation due to exposure from scriptFunction

ChakraCore and Microsoft Edge in Windows 10 1511, 1607, 1703, 1709, and Windows Server 2016 allows an attacker to gain the same user rights as the current user, due to how the scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability". The JavascriptGeneratorFunction::GetPropertyBuiltIns exposes scriptFunction while trying to get the length property passed the generator function.

This CVE ID is unique from CVE-2017-11886, CVE-2017-11889, CVE-2017-11890, CVE-2017-11893, CVE-2017-11894, CVE-2017-11895, CVE-2017-11901, CVE-2017-11903, CVE-2017-11905, CVE-2017-11905, CVE-2017-11907, CVE-2017-11908, CVE-2017-11909, CVE-2017-11910, CVE-2017-11911, CVE-2017-11912, CVE-2017-11913, CVE-2017-11916, CVE-2017-11918, and CVE-2017-11930.

Permalink: https://github.com/advisories/GHSA-8r5c-8v97-g7vh
JSON: https://advisories.ecosyste.ms/api/v1/advisories/GSA_kwCzR0hTQS04cjVjLTh2OTctZzd2aM4AATiw
Source: GitHub Advisory Database
Origin: Unspecified
Severity: High
Classification: General
Published: over 2 years ago
Updated: about 1 year ago

CVSS Score: 7.5
CVSS vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H

Identifiers: GHSA-8r5c-8v97-g7vh, CVE-2017-11914
References:

• https://nvd.nist.gov/vuln/detail/CVE-2017-11914
• https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2017-11914
• https://www.exploit-db.com/exploits/43713/
• https://github.com/chakra-core/ChakraCore/pull/4411
• https://github.com/chakra-core/ChakraCore/commit/b488088279391deaaacfce4f0756caaefc284109
• https://web.archive.org/web/20210124122728/http://www.securityfocus.com/bid/102088
• https://web.archive.org/web/20210829201729/http://www.securitytracker.com/id/1039990
• https://github.com/advisories/GHSA-8r5c-8v97-g7vh

Repository: https://github.com/chakra-core/ChakraCore
Blast Radius: 1.0

Affected Packages