CVE-2023-36807 — Infinite Loop in Project Pypdf2

CWE-835 — Infinite Loop5 documents4 sources
Severity
6.5MEDIUMNVD
EPSS
0.1%
top 74.55%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
4
Pypdf2 Project Pypdf2Debian Pypdf2Py-pdf Pypdf+1 more
Timeline
PublishedJun 30

Description

pypdf is a pure-python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In version 2.10.5 an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop. This infinite loop blocks the current process and can utilize a single core of the CPU by 100%. It does not affect memory usage. That is, for example, the case if the user extracted metadata from such a malformed PDF. Versions prior to 2.10.5 throw an error, but do not hang f…

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

▶debiandebian/pypdf2< pypdf2 2.10.7-1 (bookworm)
▶PyPIpypdf2_project/pypdf22.10.5 — 2.10.6
▶Debianpypdf2_project/pypdf2< 2.10.7-1
▶CVEListV5py-pdf/pypdf2.10.5

Patches

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

🔴Vulnerability Details

3
GHSA
PyPDF2 vulnerable to possible Infinite Loop when reading malformed objects↗2023-06-30
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OSV
CVE-2023-36807: 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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OSV
PyPDF2 vulnerable to possible Infinite Loop when reading malformed objects↗2023-06-30
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📋Vendor Advisories

1
Debian
CVE-2023-36807: pypdf2 - pypdf is a pure-python PDF library capable of splitting, merging, cropping, and ...↗2023
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