CVE-2023-24808

Public Exploit
Denial Of Service when opening a corrupt PDF file in pdfio

Description

PDFio is a C library for reading and writing PDF files. In versions prior to 1.1.0 a denial of service (DOS) vulnerability exists in the pdfio parser. Crafted pdf files can cause the program to run at 100% utilization and never terminate. The pdf which causes this crash found in testing is about 28kb in size and was discovered via fuzzing. Anyone who uses this library either as a standalone binary or as a library can be DOSed when attempting to parse this type of file. Web servers or other automated processes which rely on this code to turn pdf submissions into plaintext can be DOSed when an attacker uploads the pdf. Please see the linked GHSA for an example pdf. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Category

5.3
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.12%
Third-Party Advisory github.com Third-Party Advisory github.com
Affected: michaelrsweet pdfio
Published at:
Updated at:

References

Link Tags
https://github.com/michaelrsweet/pdfio/security/advisories/GHSA-cjc4-x96x-fvgf third party advisory exploit
https://github.com/michaelrsweet/pdfio/commit/4f10021e7ee527c1aa24853e2947e38e154d9ccb third party advisory patch

Frequently Asked Questions

What is the severity of CVE-2023-24808?
CVE-2023-24808 has been scored as a medium severity vulnerability.
How to fix CVE-2023-24808?
To fix CVE-2023-24808, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2023-24808 being actively exploited in the wild?
It is possible that CVE-2023-24808 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2023-24808?
CVE-2023-24808 affects michaelrsweet pdfio.
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