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    CVE-2015-8803

    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.

    Published:Feb 2, 2016
    Last Modified:Apr 12, 2025
    EPS:Feb 23, 2016
    EPSS Score:0.12343
    CVSS Score:9.8

    Affected Products

    Vendor
    Canonical
    Product
    Ubuntu Linux
    Vendor
    Nettle Project
    Product
    Nettle
    Vendor
    Opensuse
    Product
    Leap
    Vendor
    Opensuse
    Product
    Opensuse
    Vendor
    Redhat
    Product
    Enterprise Linux

    Exploits

    No exploit reference

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176807.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177229.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177473.html
    http://lists.opensuse.org/opensuse-updates/2016-02/msg00091.html
    http://lists.opensuse.org/opensuse-updates/2016-02/msg00093.html
    http://lists.opensuse.org/opensuse-updates/2016-02/msg00100.html
    http://rhn.redhat.com/errata/RHSA-2016-2582.html
    http://www.openwall.com/lists/oss-security/2016/02/02/2
    http://www.openwall.com/lists/oss-security/2016/02/03/1
    http://www.ubuntu.com/usn/USN-2897-1
    https://blog.fuzzing-project.org/38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html
    https://git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d
    https://lists.gnu.org/archive/html/info-gnu/2016-01/msg00006.html
    https://lists.lysator.liu.se/pipermail/nettle-bugs/2015/003028.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/176807.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177229.html
    http://lists.fedoraproject.org/pipermail/package-announce/2016-February/177473.html
    http://lists.opensuse.org/opensuse-updates/2016-02/msg00091.html
    http://lists.opensuse.org/opensuse-updates/2016-02/msg00093.html
    http://lists.opensuse.org/opensuse-updates/2016-02/msg00100.html
    http://rhn.redhat.com/errata/RHSA-2016-2582.html
    http://www.openwall.com/lists/oss-security/2016/02/02/2
    http://www.openwall.com/lists/oss-security/2016/02/03/1
    http://www.ubuntu.com/usn/USN-2897-1
    https://blog.fuzzing-project.org/38-Miscomputations-of-elliptic-curve-scalar-multiplications-in-Nettle.html
    https://git.lysator.liu.se/nettle/nettle/commit/c71d2c9d20eeebb985e3872e4550137209e3ce4d
    https://lists.gnu.org/archive/html/info-gnu/2016-01/msg00006.html
    https://lists.lysator.liu.se/pipermail/nettle-bugs/2015/003028.html

    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