phpseclib a large prime can cause a denial of service
High severity
GitHub Reviewed
Published
Mar 2, 2024
to the GitHub Advisory Database
•
Updated May 10, 2024
Package
Affected versions
>= 1.0.0, < 1.0.23
>= 2.0.0, < 2.0.47
>= 3.0.0, < 3.0.36
Patched versions
1.0.23
2.0.47
3.0.36
Description
Published by the National Vulnerability Database
Mar 1, 2024
Published to the GitHub Advisory Database
Mar 2, 2024
Reviewed
Mar 4, 2024
Last updated
May 10, 2024
An issue was discovered in phpseclib 1.x before 1.0.23, 2.x before 2.0.47, and 3.x before 3.0.36. An attacker can construct a malformed certificate containing an extremely large prime to cause a denial of service (CPU consumption for an isPrime primality check). NOTE: this issue was introduced when attempting to fix CVE-2023-27560.
References