CVE & CISA-KEV Catalog

CVE-2022-25327

MEDIUM
5.5
CVSS v3
NVD

Description

The PAM module for fscrypt doesn't adequately validate fscrypt metadata files, allowing users to create malicious metadata files that prevent other users from logging in. A local user can cause a denial of service by creating a fscrypt metadata file that prevents other users from logging into the system. We recommend upgrading to version 0.3.3 or above

How to fix

Remediation Available
fscryptDebian
Fixed in:0.3.3-1CVE-2022-25327
Fixed in:0.3.3-1CVE-2022-25327
Fixed in:0.3.3-1CVE-2022-25327

TridentStack Control can deploy fixes like this automatically across your Windows, macOS, and Linux fleet. See how it works

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 VectorLocal
Attack ComplexityLow
Privileges RequiredLow
User InteractionNone
ScopeUnchanged

Impact

ConfidentialityNone
IntegrityNone
AvailabilityHigh

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

Exploit Intelligence

0.11%probability of exploitation in 30 days
1stpercentile

Low risk: more likely to be exploited than 1% of all known CVEs.

References

Related Vulnerabilities

Other CWE-255 vulnerabilities, ordered by exploit likelihood. View all

CVESeverityCVSSEPSSExploitedFix
CVE-2010-0219High10.090%--
CVE-2014-9195High10.081%--
CVE-2009-3548High7.579%--
CVE-2013-4786High7.579%--
CVE-2009-4189High10.079%--
CVE-2017-8229Critical9.874%--

Common questions

How do I fix CVE-2022-25327?

Upgrade fscrypt on debian 12 to 0.3.3-1 or later.

Is CVE-2022-25327 being actively exploited?

Not that we know of. CVE-2022-25327 is not in the CISA Known Exploited Vulnerabilities catalog. Its EPSS score of 0.11% is the estimated probability that it will be exploited in the next 30 days. That is higher than 1% of all scored CVEs.

How severe is CVE-2022-25327?

CVE-2022-25327 has a CVSS v3 base score of 5.5, rated medium. CVSS rates the technical impact if the vulnerability is exploited, not how likely that is, so weigh it alongside the exploit-prediction score when you decide what to patch first.

What does CVE-2022-25327 affect?

Published advisories record a fix for fscrypt (Debian). Only products with a sourced advisory are listed, so treat this as what we can cite rather than a complete inventory.

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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.