CVE-2024-27354

Publication date 1 March 2024

Last updated 2 April 2025


Ubuntu priority

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.

Status

Package Ubuntu Release Status
php-phpseclib 24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic Ignored end of life, was needs-triage
22.04 LTS jammy
20.04 LTS focal
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty Not in release
php-phpseclib3 24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic Ignored end of life, was needs-triage
22.04 LTS jammy
20.04 LTS focal Not in release
18.04 LTS bionic Not in release
16.04 LTS xenial Not in release
14.04 LTS trusty Not in release
phpseclib 24.10 oracular
Not affected
24.04 LTS noble
Not affected
23.10 mantic Ignored end of life, was needs-triage
22.04 LTS jammy
20.04 LTS focal
18.04 LTS bionic
16.04 LTS xenial
14.04 LTS trusty Ignored end of standard support

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References

Related Ubuntu Security Notices (USN)

    • USN-7404-1
    • phpseclib vulnerabilities
    • 2 April 2025

Other references