CVE-2023-38242: ZDI-CAN-21387: Adobe Acrobat Reader DC Font Parsing Out-Of-Bounds Read Information Disclosure Vulnerability

Published Aug 10, 2023
·
Updated

Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) are affected by an out-of-bounds read vulnerability that could lead to disclosure of sensitive memory. An attacker could leverage this vulnerability to bypass mitigations such as ASLR. Exploitation of this issue requires user interaction in that a victim must open a malicious file.

Affected Software

8 affected components
Adobe Acrobat DC>=15.008.20082<23.003.20269
Adobe Acrobat Reader DC>=15.008.20082<23.003.20269
Apple macOS
Microsoft Windows
Adobe Acrobat>=20.001.30005<=20.005.30516.10516
Adobe Acrobat Reader>=20.001.30005<20.005.30516.10516
Adobe Acrobat>=20.001.30005<20.005.30514.10514
Adobe Acrobat Reader>=20.001.30005<20.005.30514.10514

Event History

Aug 10, 2023
CVE Published
via MITRE·01:17 PM
Data Sourced
via MITRE·01:17 PM
DescriptionSeverityWeakness

Frequently Asked Questions

1

What is CVE-2023-38242?

CVE-2023-38242 is an out-of-bounds read vulnerability in Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) that could lead to the disclosure of sensitive memory.

2

How does CVE-2023-38242 affect Adobe Acrobat Reader?

CVE-2023-38242 affects Adobe Acrobat Reader versions 23.003.20244 (and earlier) and 20.005.30467 (and earlier) by allowing an attacker to bypass mitigations such as ASLR and potentially disclose sensitive memory.

3

What is the severity of CVE-2023-38242?

The severity of CVE-2023-38242 is medium with a CVSS score of 5.5.

4

How can I mitigate the vulnerability in Adobe Acrobat Reader?

To mitigate the vulnerability in Adobe Acrobat Reader, it is recommended to update to version 23.003.20269 or later.

5

Where can I find more information about CVE-2023-38242?

You can find more information about CVE-2023-38242 on the Adobe website at https://helpx.adobe.com/security/products/acrobat/apsb23-30.html.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203