CVE & CISA-KEV Catalog

CVE-2018-5163

HIGHEPSS 80th pctl
8.1
CVSS v3
NVD

Description

If a malicious attacker has used another vulnerability to gain full control over a content process, they may be able to replace the alternate data resources stored in the JavaScript Start-up Bytecode Cache (JSBC) for other JavaScript code. If the parent process then runs this replaced code, the executed script would be run with the parent process' privileges, escaping the sandbox on content processes. This vulnerability affects Firefox < 60.

CWE-281

How to fix

Remediation Available
firefoxDebian
Fixed in:60.0-1CVE-2018-5163
firefoxUbuntu
Fixed in:60.0+build2-0ubuntu0.14.04.1USN-3645-1
Fixed in:60.0+build2-0ubuntu0.16.04.1USN-3645-1
Fixed in:60.0+build2-0ubuntu1USN-3645-1
DeveloperEditionWindows application
Affected:60.0Fixed in:60.0Mozilla
Mozilla Firefox (en-US)Windows application
Affected:60.0Fixed in:60.0Mozilla

Remediation is compiled from vendor and distribution security advisories. Always confirm against the linked source for your exact version and platform.

CVSS v3 Vector

Exploitability

Attack VectorNetwork
Attack ComplexityHigh
Privileges RequiredNone
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploit Intelligence

2.11%probability of exploitation in 30 days
80thpercentile

Elevated risk: more likely to be exploited than 80% of all known CVEs.

References

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HTML

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This product uses NVD data but is not endorsed or certified by the NVD. EPSS scores courtesy of FIRST.org (https://www.first.org/epss). Source: CISA KEV Catalog. Data as of 2024-11-21.