High severity · published Apr 29, 2024
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
7.5
CVSS
1.9%
EPSS
No
On KEV
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 vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.9% · higher than 80% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PH
PHP · PHP
8.3.0 before 8.3.5 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-2757
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-2757
Mailing List
http://www.openwall.com/lists/oss-security/2024/04/12/11
Exploit
https://github.com/php/php-src/security/advisories/GHSA-fjp9-9hwx-59fq
Third Party Advisory
https://security.netapp.com/advisory/ntap-20240510-0011/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/KJZK3X6B7FBE32FETDSMRLJXTFTHKWSY/
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