CVE & CISA-KEV Catalog

CVE-2020-12417

HIGHEPSS 84th pctl
8.8
CVSS v3
NVD

Description

Due to confusion about ValueTags on JavaScript Objects, an object may pass through the type barrier, resulting in memory corruption and a potentially exploitable crash. *Note: this issue only affects Firefox on ARM64 platforms.* This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

CWE-617CWE-681CWE-787Out-of-bounds Write

How to fix

Remediation Available
firefoxDebian
Fixed in:78.0-1CVE-2020-12417
firefoxUbuntu
Fixed in:78.0.1+build1-0ubuntu0.16.04.1USN-4408-1
Fixed in:78.0.1+build1-0ubuntu0.18.04.1USN-4408-1
Fixed in:78.0.1+build1-0ubuntu0.20.04.1USN-4408-1
thunderbirdUbuntu
Fixed in:1:68.10.0+build1-0ubuntu0.16.04.1USN-4421-1
Fixed in:1:68.10.0+build1-0ubuntu0.18.04.1USN-4421-1
Fixed in:1:68.10.0+build1-0ubuntu0.20.04.1USN-4421-1
DeveloperEditionWindows application
Affected:78.0Fixed in:78.0Mozilla
Mozilla Firefox (en-US)Windows application
Affected:78.0Fixed in:78.0Mozilla
Mozilla Firefox ESR (en-US)Windows application
Affected:68.10.0Fixed in:68.10.0Mozilla
Mozilla Thunderbird (en-US)Windows application
Affected:68.10.0Fixed in:68.10.0Mozilla

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 ComplexityLow
Privileges RequiredNone
User InteractionRequired
ScopeUnchanged

Impact

ConfidentialityHigh
IntegrityHigh
AvailabilityHigh

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Exploit Intelligence

2.69%probability of exploitation in 30 days
84thpercentile

Elevated risk: more likely to be exploited than 84% of all known CVEs.

References

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Markdown

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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.