phpseclib vulnerable to denial of service · CVE-2023-49316 · GitHub Advisory Database · GitHub

phpseclib vulnerable to denial of service

High severity GitHub Reviewed Published Nov 27, 2023 to the GitHub Advisory Database • Updated Jan 3, 2024

Package

phpseclib/phpseclib (Composer)

Affected versions

>= 3.0.0, < 3.0.34

Patched versions

3.0.34

Description

In Math/BinaryField.php in phpseclib 3 before 3.0.34, excessively large degrees in binary fields can lead to a denial of service.

References

Published by the National Vulnerability Database

Nov 27, 2023

Published to the GitHub Advisory Database Nov 27, 2023

Reviewed Nov 28, 2023

Last updated Jan 3, 2024

Severity

High

7.5

/ 10

CVSS base metrics

Attack vector

Network

Attack complexity

Low

Privileges required

None

User interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

None

Availability

High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H