CVE-2024-2757: PHP mb_encode_mimeheader runs endlessly for some inputs
First published: Thu Apr 11 2024(Updated: )
Fixed bug GHSA-fjp9-9hwx-59fq (mb_encode_mimeheader runs endlessly for some inputs). (CVE-2024-2757)
Credit: security@php.net
| Affected Software | Affected Version | How to fix |
|---|---|---|
| PHP | <8.3.6 | 8.3.6 |
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Reference Links
Frequently Asked Questions
What is the severity of CVE-2024-2757?
CVE-2024-2757 has been classified as a moderate severity vulnerability due to its potential to cause an infinite loop in the mb_encode_mimeheader function.
How do I fix CVE-2024-2757?
To fix CVE-2024-2757, upgrade PHP to version 8.3.6 or later.
What versions of PHP are affected by CVE-2024-2757?
CVE-2024-2757 affects PHP versions prior to 8.3.5.
What is the bug in CVE-2024-2757 about?
The bug in CVE-2024-2757 causes the mb_encode_mimeheader function to run endlessly when it encounters certain long strings.
Is there a workaround for CVE-2024-2757 before upgrading?
Currently, it is recommended to avoid using inputs that have long strings of non-space characters followed by a space as a temporary workaround for CVE-2024-2757.
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