Is CVE-2023-36810 in the CISA KEV catalog?

No. CVE-2023-36810 is not currently on the CISA Known Exploited Vulnerabilities list.

What is the CVSS severity of CVE-2023-36810?

CVE-2023-36810 has a CVSS v3 base score of 6.2 (MEDIUM).

What is the EPSS score for CVE-2023-36810?

CVE-2023-36810 has an EPSS score of 0.57% (43th percentile), estimating the probability of exploitation in the next 30 days.

How do I fix CVE-2023-36810?

Upgrade pypdf2 on debian 11 to 1.26.0-4+deb11u1 or later. Fixes are available for 4 affected products.

CVE & CISA-KEV Catalog

CVE-2023-36810

MEDIUM

6.2

CVSS v3

NVD

Description

pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. An attacker who uses this vulnerability can craft a PDF which leads to unexpected long runtime. This quadratic runtime blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. This issue has been addressed in PR 808 and versions from 1.27.9 include this fix. Users are advised to upgrade. There are no known workarounds for this vulnerability.

CWE-407

How to fix

Remediation Available

pypdf2Debian

Fixed in:1.26.0-4+deb11u1CVE-2023-36810

Fixed in:1.27.9-1CVE-2023-36810

pypdf2Ubuntu

Fixed in:1.25.1-1ubuntu0.1~esm2USN-6280-1

Fixed in:1.26.0-2ubuntu0.1~esm2USN-6280-1

Fixed in:1.26.0-3ubuntu1.20.04.2USN-6280-1

Fixed in:1.26.0-4ubuntu0.22.04.2USN-6280-1

python-pypdf2Ubuntu

Fixed in:1.25.1-1ubuntu0.1~esm2USN-6280-1

Fixed in:1.26.0-2ubuntu0.1~esm2USN-6280-1

Fixed in:1.26.0-3ubuntu1.20.04.2USN-6280-1

python3-pypdf2Ubuntu

Fixed in:1.25.1-1ubuntu0.1~esm2USN-6280-1

Fixed in:1.26.0-2ubuntu0.1~esm2USN-6280-1

Fixed in:1.26.0-3ubuntu1.20.04.2USN-6280-1

Fixed in:1.26.0-4ubuntu0.22.04.2USN-6280-1

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 InteractionNone

ScopeUnchanged

Impact

ConfidentialityNone

IntegrityNone

AvailabilityHigh

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

Exploit Intelligence

0.57%probability of exploitation in 30 days

43rdpercentile

Moderate risk: more likely to be exploited than 43% of all known CVEs.

References

Patch2

Exploit1

github.com

Other references1

lists.debian.org

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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.