Is CVE-2021-3508 in the CISA KEV catalog?

No. CVE-2021-3508 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2021-3508?

CVE-2021-3508 has a CVSS v3 base score of 5.5 (MEDIUM).

What is the EPSS score for CVE-2021-3508?

CVE-2021-3508 has an EPSS score of 0.76% (51th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2021-3508?

Upgrade pdfresurrect on debian 12 to 0.22-3 or later. Fixes are available for 2 affected products.

CVE & CISA-KEV Catalog

CVE-2021-3508

MEDIUM

5.5

CVSS v3

NVD

Description

A flaw was found in PDFResurrect in version 0.22b. There is an infinite loop in get_xref_linear_skipped() in pdf.c via a crafted PDF file.

CWE-835

How to fix

Remediation Available

pdfresurrectDebian

Fixed in:0.22-3CVE-2021-3508

pdfresurrectUbuntu

Fixed in:0.12-6ubuntu0.2+esm1USN-5282-1

Fixed in:0.14-1ubuntu0.1~esm1USN-5282-1

Fixed in:0.19-1ubuntu0.1~esm1USN-5282-1

Fixed in:0.22-2ubuntu0.1~esm1USN-5282-1

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

0.76%probability of exploitation in 30 days

51stpercentile

Moderate risk: more likely to be exploited than 51% of all known CVEs.

References

Patch2

Related Vulnerabilities

Other CWE-835 vulnerabilities, ordered by exploit likelihood. View all

CVE	Severity	CVSS	EPSS	Exploited	Fix
CVE-2020-13935	High	7.5	88%	-	Fix
CVE-2020-36227	High	7.5	78%	-	Fix
CVE-2022-0778	High	7.5	71%	-	Fix
CVE-2019-14241	High	7.5	70%	-	-
CVE-2017-16944	High	7.5	63%	-	Fix
CVE-2024-20353	High	8.6	63%	KEV	-

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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.