CVE-2023-24808

Denial Of Service when opening a corrupt PDF file in pdfio

Severity Score

6.5

*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

*Multiple Sources

Exploited in Wild

*KEV

Decision

*SSVC

Descriptions

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.

*Credits: N/A

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

Required

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

Low

* Common Vulnerability Scoring System

SSVC

Decision:-

Exploitation

Automatable

Tech. Impact

* Organization's Worst-case Scenario

Timeline

2023-01-30 CVE Reserved
2023-02-07 CVE Published
2024-08-02 CVE Updated
2024-08-02 First Exploit
2024-08-30 EPSS Updated
---------- Exploited in Wild
---------- KEV Due Date

CWE

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

CAPEC

References (2)

URL	Tag	Source

URL	Date	SRC
https://github.com/michaelrsweet/pdfio/security/advisories/GHSA-cjc4-x96x-fvgf	2024-08-02

URL	Date	SRC
https://github.com/michaelrsweet/pdfio/commit/4f10021e7ee527c1aa24853e2947e38e154d9ccb	2023-11-07

URL	Date	SRC

Affected Vendors, Products, and Versions

Vendor		Product				Version		Other		Status
Vendor	Product	Version	Other	Status	<-- -->	Vendor	Product	Version	Other	Status
Pdfio Project Search vendor "Pdfio Project"		Pdfio Search vendor "Pdfio Project" for product "Pdfio"				< 1.1.0 Search vendor "Pdfio Project" for product "Pdfio" and version " < 1.1.0"		-		Affected