Is CVE-2022-31117 in the CISA KEV catalog?

No. CVE-2022-31117 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2022-31117?

CVE-2022-31117 has a CVSS v3 base score of 5.9 (MEDIUM).

What is the EPSS score for CVE-2022-31117?

CVE-2022-31117 has an EPSS score of 1.68% (74th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2022-31117?

Upgrade ujson on debian 12 to 5.4.0-1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2022-31117

MEDIUMEPSS 74th pctl

5.9

CVSS v3

NVD

Description

UltraJSON is a fast JSON encoder and decoder written in pure C with bindings for Python 3.7+. In versions prior to 5.4.0 an error occurring while reallocating a buffer for string decoding can cause the buffer to get freed twice. Due to how UltraJSON uses the internal decoder, this double free is impossible to trigger from Python. This issue has been resolved in version 5.4.0 and all users should upgrade to UltraJSON 5.4.0. There are no known workarounds for this issue.

CWE-415

How to fix

Remediation Available

ujsonDebian

Fixed in:5.4.0-1CVE-2022-31117

python-ujsonUbuntu

Fixed in:1.33-1ubuntu0.1~esm2USN-6629-1

Fixed in:1.35-2ubuntu0.1~esm1USN-6629-1

python3-ujsonUbuntu

Fixed in:1.33-1ubuntu0.1~esm2USN-6629-1

Fixed in:1.35-2ubuntu0.1~esm1USN-6629-1

Fixed in:1.35-4ubuntu0.1+esm1USN-6629-3

Fixed in:5.1.0-1ubuntu0.1~esm1USN-6629-1

ujsonUbuntu

Fixed in:1.33-1ubuntu0.1~esm2USN-6629-1

Fixed in:1.35-2ubuntu0.1~esm1USN-6629-1

Fixed in:1.35-4ubuntu0.1+esm1USN-6629-3

Fixed in:5.1.0-1ubuntu0.1~esm1USN-6629-1

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

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

1.68%probability of exploitation in 30 days

74thpercentile

Elevated risk: more likely to be exploited than 74% of all known CVEs.

References

Patch1

github.com

Third-Party Advisory1

github.com

Other references2

Related Vulnerabilities

Other CWE-415 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-25136	Medium	6.5	90%	-	Fix
CVE-2018-0101	Critical	10.0	87%	-	Fix
CVE-2003-0545	Critical	9.8	85%	-	Fix
CVE-2019-3829	Medium	5.3	59%	-	Fix
CVE-2026-33824	Critical	9.8	56%	-	Fix
CVE-2021-3407	Medium	5.5	50%	-	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.