UBUNTU-CVE-2015-8803

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    UBUNTU-CVE-2015-8803

    Published: 31 Dec 2015Last Modified: 22 Apr 2026
    Upstream:
    CVE-2015-8803
    Aliases:
    USN-2897-1

    Summary:

    Details: The ecc_256_modp function in ecc-256.c in Nettle before 3.2 does not properly handle carry propagation and produces incorrect output in its implementation of the P-256 NIST elliptic curve, which allows attackers to have unspecified impact via unknown vectors, a different vulnerability than CVE-2015-8805.

    References: https://ubuntu.com/security/CVE-2015-8803, https://lists.lysator.liu.se/pipermail/nettle-bugs/2015/003028.html, http://seclists.org/oss-sec/2016/q1/273, https://blog.fuzzing-project.org/38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html, https://lists.gnu.org/archive/html/info-gnu/2016-01/msg00006.html, https://ubuntu.com/security/notices/USN-2897-1, https://www.cve.org/CVERecord?id=CVE-2015-8803

    Affected packages

    Package

    Name: nettle

    Purl: pkg:deb/ubuntu/[email protected]?arch=source&distro=trusty

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -2.7.1-1ubuntu0.1

    Affected versions

    2.7.1-1

    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