Known exploited vulnerability
CVE-2018-8298
The short answer
CVE-2018-8298 affects Microsoft ChakraCore and is rated high (CVSS 7.5). CISA added it to the Known Exploited Vulnerabilities catalog on 2022-03-03: attackers are using it, so patch it first. Fixed versions are published for Microsoft.ChakraCore (1.10.1).
What it is
A remote code execution vulnerability exists in the way that the ChakraCore scripting engine handles objects in memory, aka "Scripting Engine Memory Corruption Vulnerability." This affects ChakraCore. This CVE ID is unique from CVE-2018-8242, CVE-2018-8283, CVE-2018-8287, CVE-2018-8288, CVE-2018-8291, CVE-2018-8296.
Weakness: CWE-843.
Severity
7.5 high
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Exploited (CISA KEV)
Yes, since Mar 3, 2022
Federal due date Mar 17, 2022
EPSS, next 30 days
75%
Higher than 100% of scored CVEs
How it can be exploited
- Attack vector
- Network
- Attack complexity
- High
- Privileges required
- None
- User interaction
- Required
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
What CISA says to do
Apply updates per vendor instructions.
Affected packages and fixed versions
| Package | Ecosystem | Fixed in | Advisory |
|---|---|---|---|
| Microsoft.ChakraCore | NuGet | 1.10.1 | GHSA-wgw2-wwq8-c7wf |
Is it in your code? Drop your lockfile into the free vulnerability check, or let vulnerability watch check your repository every day and open the upgrade as a pull request.
Affected products
ChakraCore. NVD's record lists the exact affected versions.
References
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298 PatchVendor Advisory
- www.exploit-db.com/exploits/45217/ ExploitThird Party AdvisoryVDB Entry
- portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2018-8298 PatchVendor Advisory
- www.exploit-db.com/exploits/45217/ ExploitThird Party AdvisoryVDB Entry
- www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2018-8298 US Government Resource
Questions
Is CVE-2018-8298 being exploited?
Yes. CISA added CVE-2018-8298 to its Known Exploited Vulnerabilities catalog on 2022-03-03, with a federal remediation due date of 2022-03-17.
How do I fix CVE-2018-8298?
Upgrade to a fixed version: Microsoft.ChakraCore (NuGet) 1.10.1. CISA's required action: Apply updates per vendor instructions.
From NVD, CISA KEV, FIRST EPSS and OSV.dev, checked . Status on NVD: Analyzed. The description is NVD's text, quoted as published.
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ChakraCore exploited vulnerabilities
Everything CISA lists as exploited for ChakraCore.
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