UBUNTU-CVE-2019-14318

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    UBUNTU-CVE-2019-14318

    Published: 30 Jul 2019Last Modified: 22 Apr 2026
    Upstream:
    CVE-2019-14318

    Summary:

    Details: Crypto++ 8.3.0 and earlier contains a timing side channel in ECDSA signature generation. This allows a local or remote attacker, able to measure the duration of hundreds to thousands of signing operations, to compute the private key used. The issue occurs because scalar multiplication in ecp.cpp (prime field curves, small leakage) and algebra.cpp (binary field curves, large leakage) is not constant time and leaks the bit length of the scalar among other information.

    References: https://ubuntu.com/security/CVE-2019-14318, https://github.com/weidai11/cryptopp/issues/869, https://eprint.iacr.org/2011/232.pdf, https://tches.iacr.org/index.php/TCHES/article/view/7337, https://www.cve.org/CVERecord?id=CVE-2019-14318

    Affected packages

    Package

    Name: libcrypto++

    Purl: pkg:deb/ubuntu/[email protected]+deb8u3ubuntu0.1~esm1?arch=source&distro=esm-infra-legacy/trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -None

    Affected versions

    5.6.1-6
    5.6.1-6+deb8u1build0.14.04.1
    5.6.1-6+deb8u3build0.14.04.1
    5.6.1-6+deb8u3ubuntu0.1~esm1

    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