VulnerabilityModified
CVE-2024-2757
In PHP 8.3.* before 8.3.5, function mb_encode_mimeheader() runs endlessly for some inputs that contain long strings of non-space characters followed by a space.
HIGH 7.5EPSS 1.92%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.92%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
In PHP 8.3.* before 8.3.5, function mb_encode_mimeheader() runs endlessly for some inputs that contain long strings of non-space characters followed by a space. This could lead to a potential DoS attack if a hostile user sends data to an application that uses this function.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 1.92% probability · 79th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-400
- Affected
- php/php
- Source
- security@php.net
References
- http://www.openwall.com/lists/oss-security/2024/04/12/11Mailing List
- https://github.com/php/php-src/security/advisories/GHSA-fjp9-9hwx-59fqExploit, Vendor Advisory
- https://security.netapp.com/advisory/ntap-20240510-0011/Third Party Advisory
- http://www.openwall.com/lists/oss-security/2024/04/12/11Mailing List
- https://github.com/php/php-src/security/advisories/GHSA-fjp9-9hwx-59fqExploit, Vendor Advisory
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJZK3X6B7FBE32FETDSMRLJXTFTHKWSY/
- https://security.netapp.com/advisory/ntap-20240510-0011/Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.