Is CVE-2021-34552 in the CISA KEV catalog?

No. CVE-2021-34552 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-34552?

CVE-2021-34552 has a CVSS v3 base score of 9.8 (CRITICAL).

What is the EPSS score for CVE-2021-34552?

CVE-2021-34552 has an EPSS score of 3.16% (86th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-34552?

Upgrade pillow on debian 11 to 8.1.2+dfsg-0.3 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2021-34552

CRITICALEPSS 86th pctl

9.8

CVSS v3

NVD

Description

Pillow through 8.2.0 and PIL (aka Python Imaging Library) through 1.1.7 allow an attacker to pass controlled parameters directly into a convert function to trigger a buffer overflow in Convert.c.

CWE-120Classic Buffer Overflow

How to fix

Remediation Available

pillowDebian

Fixed in:8.1.2+dfsg-0.3CVE-2021-34552

pillowUbuntu

Fixed in:2.3.0-1ubuntu3.4+esm3USN-5227-2

Fixed in:3.1.2-0ubuntu1.6+esm1USN-5227-2

Fixed in:5.1.0-1ubuntu0.7USN-5227-1

Fixed in:7.0.0-4ubuntu0.5USN-5227-1

python-pilUbuntu

Fixed in:2.3.0-1ubuntu3.4+esm3USN-5227-2

Fixed in:3.1.2-0ubuntu1.6+esm1USN-5227-2

Fixed in:5.1.0-1ubuntu0.7USN-5227-1

python3-pilUbuntu

Fixed in:2.3.0-1ubuntu3.4+esm3USN-5227-2

Fixed in:3.1.2-0ubuntu1.6+esm1USN-5227-2

Fixed in:5.1.0-1ubuntu0.7USN-5227-1

Fixed in:7.0.0-4ubuntu0.5USN-5227-1

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 ComplexityLow

Privileges RequiredNone

User InteractionNone

ScopeUnchanged

Impact

ConfidentialityHigh

IntegrityHigh

AvailabilityHigh

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

Exploit Intelligence

3.16%probability of exploitation in 30 days

86thpercentile

Elevated risk: more likely to be exploited than 86% of all known CVEs.

References

Vendor Advisory2

Third-Party Advisory2

Other references2

Related Vulnerabilities

Other CWE-120 (Classic Buffer Overflow) vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2014-0195	Medium	6.8	100%	-	Fix
CVE-2017-7269	Critical	9.8	100%	KEV	-
CVE-2019-11043	High	8.7	99%	KEV + Ransom	Fix
CVE-2011-4862	High	10.0	95%	-	Fix
CVE-2007-5659	High	7.8	94%	KEV	Fix
CVE-2022-3786	High	7.5	91%	-	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.