6.2
MEDIUM
CVE-2024-42358
PDFio TTF Parser Denial of Service (DoS) Vulnerability
Description

PDFio is a simple C library for reading and writing PDF files. There is a denial of service (DOS) vulnerability in the TTF parser. Maliciously crafted TTF files can cause the program to utilize 100% of the Memory and enter an infinite loop. This can also lead to a heap-buffer-overflow vulnerability. An infinite loop occurs in the read_camp function by nGroups value. The ttf.h library is vulnerable. A value called nGroups is extracted from the file, and by changing that value, you can cause the program to utilize 100% of the Memory and enter an infinite loop. If the value of nGroups in the file is small, an infinite loop will not occur. This library, whether used as a standalone binary or as part of another application, is vulnerable to DOS attacks when parsing certain types of files. Automated systems, including web servers that use this code to convert PDF submissions into plaintext, can be DOSed if an attacker uploads a malicious TTF file. This issue has been addressed in release version 1.3.1. All users are advised to upgrade. There are no known workarounds for this vulnerability.

INFO

Published Date :

Aug. 6, 2024, 5:15 p.m.

Last Modified :

Aug. 12, 2024, 6:50 p.m.

Remotely Exploitable :

No

Impact Score :

3.6

Exploitability Score :

2.5
Affected Products

The following products are affected by CVE-2024-42358 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Pdfio_project pdfio
1 Msweet pdfio
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2024-42358.

URL Resource
https://github.com/michaelrsweet/pdfio/commit/e4e1c39578279386b0ab9f9ac14b20a8bad4f935 Patch
https://github.com/michaelrsweet/pdfio/security/advisories/GHSA-4hh9-j68x-8353 Exploit Vendor Advisory

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2024-42358 vulnerability anywhere in the article.

The following table lists the changes that have been made to the CVE-2024-42358 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • Initial Analysis by [email protected]

    Aug. 12, 2024

    Action Type Old Value New Value
    Added CVSS V3.1 NIST AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
    Changed Reference Type https://github.com/michaelrsweet/pdfio/commit/e4e1c39578279386b0ab9f9ac14b20a8bad4f935 No Types Assigned https://github.com/michaelrsweet/pdfio/commit/e4e1c39578279386b0ab9f9ac14b20a8bad4f935 Patch
    Changed Reference Type https://github.com/michaelrsweet/pdfio/security/advisories/GHSA-4hh9-j68x-8353 No Types Assigned https://github.com/michaelrsweet/pdfio/security/advisories/GHSA-4hh9-j68x-8353 Exploit, Vendor Advisory
    Added CWE NIST CWE-835
    Added CPE Configuration OR *cpe:2.3:a:msweet:pdfio:*:*:*:*:*:*:*:* versions up to (excluding) 1.3.1
  • CVE Received by [email protected]

    Aug. 06, 2024

    Action Type Old Value New Value
    Added Description PDFio is a simple C library for reading and writing PDF files. There is a denial of service (DOS) vulnerability in the TTF parser. Maliciously crafted TTF files can cause the program to utilize 100% of the Memory and enter an infinite loop. This can also lead to a heap-buffer-overflow vulnerability. An infinite loop occurs in the read_camp function by nGroups value. The ttf.h library is vulnerable. A value called nGroups is extracted from the file, and by changing that value, you can cause the program to utilize 100% of the Memory and enter an infinite loop. If the value of nGroups in the file is small, an infinite loop will not occur. This library, whether used as a standalone binary or as part of another application, is vulnerable to DOS attacks when parsing certain types of files. Automated systems, including web servers that use this code to convert PDF submissions into plaintext, can be DOSed if an attacker uploads a malicious TTF file. This issue has been addressed in release version 1.3.1. All users are advised to upgrade. There are no known workarounds for this vulnerability.
    Added Reference GitHub, Inc. https://github.com/michaelrsweet/pdfio/security/advisories/GHSA-4hh9-j68x-8353 [No types assigned]
    Added Reference GitHub, Inc. https://github.com/michaelrsweet/pdfio/commit/e4e1c39578279386b0ab9f9ac14b20a8bad4f935 [No types assigned]
    Added CWE GitHub, Inc. CWE-835
    Added CVSS V3.1 GitHub, Inc. AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2024-42358 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2024-42358 weaknesses.

CVSS31 - Vulnerability Scoring System
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