CVE & CISA-KEV Catalog

CVE-2023-29539

HIGH
8.8
CVSS v3
NVD

Description

When handling the filename directive in the Content-Disposition header, the filename would be truncated if the filename contained a NULL character. This could have led to reflected file download attacks potentially tricking users to install malware. This vulnerability affects Firefox < 112, Focus for Android < 112, Firefox ESR < 102.10, Firefox for Android < 112, and Thunderbird < 102.10.

How to fix

Remediation Available
firefoxDebian
Fixed in:112.0-1CVE-2023-29539
firefoxUbuntu
Fixed in:112.0+build2-0ubuntu0.18.04.1USN-6010-1
Fixed in:112.0+build2-0ubuntu0.20.04.1USN-6010-1
thunderbirdUbuntu
Fixed in:1:102.10.0+build2-0ubuntu0.18.04.1USN-6015-1
Fixed in:1:102.10.0+build2-0ubuntu0.20.04.1USN-6015-1
Fixed in:1:102.10.0+build2-0ubuntu0.22.04.1USN-6015-1
Fixed in:1:102.10.0+build2-0ubuntu0.22.10.1USN-6015-1
DeveloperEditionWindows application
Affected:112.0Fixed in:112.0Mozilla
Mozilla Firefox (en-US)Windows application
Affected:112.0Fixed in:112.0Mozilla
Mozilla Firefox ESR (en-US)Windows application
Affected:102.10Fixed in:102.10Mozilla
Mozilla Thunderbird (en-US)Windows application
Affected:102.10Fixed in:102.10Mozilla

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

0.74%probability of exploitation in 30 days
50thpercentile

Moderate risk: more likely to be exploited than 50% of all known CVEs.

References

Related Vulnerabilities

Other CWE-476 (NULL Pointer Dereference) vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2023-21758High7.592%-Fix
CVE-2023-21547High7.588%-Fix
CVE-2014-3470Medium4.386%-Fix
CVE-2021-44224High8.282%-Fix
CVE-2016-0742High7.582%-Fix
CVE-2009-1386Medium5.080%-Fix
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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.