Is CVE-2021-32276 in the CISA KEV catalog?

No. CVE-2021-32276 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-32276?

CVE-2021-32276 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-32276?

CVE-2021-32276 has an EPSS score of 0.89% (55th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-32276?

Upgrade faad2 on debian 11 to 2.10.0-1 or later. Fixes are available for 5 affected products.

CVE & CISA-KEV Catalog

CVE-2021-32276

MEDIUM

5.5

CVSS v3

NVD

Description

An issue was discovered in faad2 through 2.10.0. A NULL pointer dereference exists in the function get_sample() located in output.c. It allows an attacker to cause Denial of Service.

CWE-476NULL Pointer Dereference

How to fix

Remediation Available

faad2Debian

Fixed in:2.10.0-1CVE-2021-32276

faadUbuntu

Fixed in:2.7-8+deb8u3ubuntu0.1~esm1USN-6313-1

Fixed in:2.8.0~cvs20150510-1ubuntu0.1+esm1USN-6313-1

Fixed in:2.8.8-1ubuntu0.1~esm1USN-6313-1

Fixed in:2.9.1-1ubuntu0.1USN-6313-1

faad2Ubuntu

Fixed in:2.7-8+deb8u3ubuntu0.1~esm1USN-6313-1

Fixed in:2.8.0~cvs20150510-1ubuntu0.1+esm1USN-6313-1

Fixed in:2.8.8-1ubuntu0.1~esm1USN-6313-1

Fixed in:2.9.1-1ubuntu0.1USN-6313-1

libfaad-devUbuntu

Fixed in:2.7-8+deb8u3ubuntu0.1~esm1USN-6313-1

Fixed in:2.8.0~cvs20150510-1ubuntu0.1+esm1USN-6313-1

Fixed in:2.8.8-1ubuntu0.1~esm1USN-6313-1

Fixed in:2.9.1-1ubuntu0.1USN-6313-1

libfaad2Ubuntu

Fixed in:2.7-8+deb8u3ubuntu0.1~esm1USN-6313-1

Fixed in:2.8.0~cvs20150510-1ubuntu0.1+esm1USN-6313-1

Fixed in:2.8.8-1ubuntu0.1~esm1USN-6313-1

Fixed in:2.9.1-1ubuntu0.1USN-6313-1

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 VectorLocal

Attack ComplexityLow

Privileges RequiredNone

User InteractionRequired

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.89%probability of exploitation in 30 days

55thpercentile

Moderate risk: more likely to be exploited than 55% of all known CVEs.

References

Exploit1

github.com

Third-Party Advisory2

Related Vulnerabilities

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

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2023-21758	High	7.5	92%	-	Fix
CVE-2023-21547	High	7.5	88%	-	Fix
CVE-2014-3470	Medium	4.3	86%	-	Fix
CVE-2021-44224	High	8.2	82%	-	Fix
CVE-2016-0742	High	7.5	82%	-	Fix
CVE-2009-1386	Medium	5.0	80%	-	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.