UBUNTU-CVE-2024-27354

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    UBUNTU-CVE-2024-27354

    Published: 1 Mar 2024Last Modified: 15 Sept 2026
    Upstream:
    CVE-2024-27354

    Summary:

    Details: 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: https://ubuntu.com/security/CVE-2024-27354, https://github.com/phpseclib/phpseclib/commit/ad5dbdf2129f5e0fb644637770b7f33de8ca8575, https://www.cve.org/CVERecord?id=CVE-2024-27354, https://ubuntu.com/security/notices/USN-7404-1, https://ubuntu.com/security/notices/USN-8769-1

    Affected packages

    Package

    Name: php-phpseclib

    Purl: pkg:deb/ubuntu/php-phpseclib?arch=source&distro=esm-apps%2Fxenial

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.0.1-1ubuntu0.1~esm2

    Affected versions

    2.0.1-1
    2.0.1-1build1

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    UBUNTU-CVE-2024-27354 | CVE-DB