CVE-2023-36810 — Inefficient Algorithmic Complexity in Pypdf

CWE-407 — Inefficient Algorithmic Complexity6 documents5 sources
Severity
6.5MEDIUMNVD
EPSS
0.2%
top 64.08%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Py-pdf PypdfPypdf2 Project Pypdf2Debian Pypdf2+1 more
Timeline
PublishedJun 30
Latest updateAug 10

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 v…

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HExploitability: 2.8 | Impact: 3.6

Affected Packages5 packages

▶CVEListV5py-pdf/pypdf< 1.27.9
▶debiandebian/pypdf2< pypdf2 1.27.9-1 (bookworm)
▶PyPIpypdf2_project/pypdf2< 1.27.9
▶Debianpypdf2_project/pypdf2< 1.26.0-4+deb11u1+1

Patches

Patch: github.com ↗Patch: github.com ↗Patch: github.com ↗

🔴Vulnerability Details

3
OSV
CVE-2023-36810: pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files↗2023-06-30
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GHSA
PyPDF2 quadratic runtime with malformed PDF missing xref marker↗2023-06-30
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OSV
PyPDF2 quadratic runtime with malformed PDF missing xref marker↗2023-06-30
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📋Vendor Advisories

2
Ubuntu
PyPDF2 vulnerability↗2023-08-10
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Debian
CVE-2023-36810: pypdf2 - pypdf is a pure-python PDF library capable of splitting, merging, cropping, and ...↗2023
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