Vulnerability Details : CVE-2022-24859
PyPDF2 is an open source python PDF library capable of splitting, merging, cropping, and transforming the pages of PDF files. In versions prior to 1.27.5 an attacker who uses this vulnerability can craft a PDF which leads to an infinite loop if the PyPDF2 if the code attempts to get the content stream. The reason is that the last while-loop in `ContentStream._readInlineImage` only terminates when it finds the `EI` token, but never actually checks if the stream has already ended. This issue has been resolved in version `1.27.5`. Users unable to upgrade should validate and PDFs prior to iterating over their content stream.
Products affected by CVE-2022-24859
- cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
- cpe:2.3:a:pypdf2_project:pypdf2:*:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2022-24859
0.08%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 36 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2022-24859
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.3
|
MEDIUM | AV:N/AC:M/Au:N/C:N/I:N/A:P |
8.6
|
2.9
|
NIST | |
|
5.5
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
1.8
|
3.6
|
NIST | |
|
6.2
|
MEDIUM | CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
2.5
|
3.6
|
GitHub, Inc. |
CWE ids for CVE-2022-24859
-
The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop.Assigned by:
- nvd@nist.gov (Secondary)
- security-advisories@github.com (Primary)
References for CVE-2022-24859
-
https://github.com/py-pdf/PyPDF2/security/advisories/GHSA-xcjx-m2pj-8g79
Manipulated inline images can cause Infinite Loop · Advisory · py-pdf/PyPDF2 · GitHubExploit;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2023/06/msg00013.html
[SECURITY] [DLA 3451-1] pypdf2 security update
-
https://github.com/py-pdf/PyPDF2/issues/329
Manipulated inline images can force PyPDF2 into an infinite loop · Issue #329 · py-pdf/PyPDF2 · GitHubExploit;Third Party Advisory
-
https://github.com/py-pdf/PyPDF2/releases/tag/1.27.5
Release Version 1.27.5, 2022-04-15 · py-pdf/PyPDF2 · GitHubRelease Notes;Third Party Advisory
-
https://github.com/py-pdf/PyPDF2/pull/740
Improved performance and security for ContentStream_readInlineImage. by sekrause · Pull Request #740 · py-pdf/PyPDF2 · GitHubPatch;Third Party Advisory
-
https://lists.debian.org/debian-lts-announce/2022/06/msg00001.html
[SECURITY] [DLA 3039-1] pypdf2 security updateMailing List;Third Party Advisory
Jump to