CVE-2024-39420: Acrobat Reader | Time-of-check Time-of-use (TOCTOU) Race Condition (CWE-367)
First published: Wed Aug 14 2024(Updated: )
Acrobat Reader versions 20.005.30636, 24.002.21005, 24.001.30159, 20.005.30655, 24.002.20965, 24.002.20964, 24.001.30123, 24.003.20054 and earlier are affected by a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability that could lead to arbitrary code execution. This vulnerability arises when the timing of actions changes the state of a resource between the checking of a condition and the use of the resource, allowing an attacker to manipulate the resource in a harmful way. Exploitation of this issue requires user interaction in that a victim must open a malicious file.
Credit: psirt@adobe.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| All of | ||
| Any of | ||
| Adobe Acrobat Reader | >=20.001.30005<20.005.30655 | |
| Adobe Acrobat Reader | >=24.001.20604<24.001.30159 | |
| Adobe Acrobat | >=15.008.20082<24.002.21005 | |
| Adobe Acrobat Reader | >=20.001.3005<20.005.30655 | |
| Adobe Acrobat Reader | >=15.008.20082<24.002.21005 | |
| Any of | ||
| Apple iOS and macOS | ||
| Microsoft Windows |
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Frequently Asked Questions
What is the severity of CVE-2024-39420?
CVE-2024-39420 is a critical vulnerability due to its potential for arbitrary code execution.
How do I fix CVE-2024-39420?
To mitigate CVE-2024-39420, users should update Adobe Acrobat Reader and Acrobat DC to the latest versions.
Which versions of Adobe Acrobat are affected by CVE-2024-39420?
Adobe Acrobat Reader versions 20.005.30636 and earlier, as well as multiple other specific versions, are affected by CVE-2024-39420.
What type of vulnerability is CVE-2024-39420?
CVE-2024-39420 is classified as a Time-of-check Time-of-use (TOCTOU) Race Condition vulnerability.
Can CVE-2024-39420 lead to data loss?
Yes, CVE-2024-39420 could potentially lead to data loss or system compromise due to arbitrary code execution.
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