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    CVE-2017-5462

    A flaw in DRBG number generation within the Network Security Services (NSS) library where the internal state V does not correctly carry bits over. The NSS library has been updated to fix this issue to address this issue and Firefox ESR 52.1 has been updated with NSS version 3.28.4. This vulnerability affects Thunderbird < 52.1, Firefox ESR < 45.9, Firefox ESR < 52.1, and Firefox < 53.

    Published:Apr 19, 2017
    Last Modified:Nov 25, 2025
    EPS:Jun 11, 2018
    EPSS Score:0.01072
    CVSS Score:5.3

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Mozilla
    Product
    Firefox
    Vendor
    Mozilla
    Product
    Network Security Services
    Vendor
    Mozilla
    Product
    Thunderbird

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-682 Incorrect Calculation

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-128 Integer Attacks
    CAPEC-129 Pointer Manipulation

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    References

    http://www.securityfocus.com/bid/97940
    http://www.securitytracker.com/id/1038320
    https://bugzilla.mozilla.org/show_bug.cgi?id=1345089
    https://security.gentoo.org/glsa/201705-04
    https://www.debian.org/security/2017/dsa-3831
    https://www.debian.org/security/2017/dsa-3872
    https://www.mozilla.org/security/advisories/mfsa2017-10/
    https://www.mozilla.org/security/advisories/mfsa2017-11/
    https://www.mozilla.org/security/advisories/mfsa2017-12/
    https://www.mozilla.org/security/advisories/mfsa2017-13/
    http://www.securityfocus.com/bid/97940
    http://www.securitytracker.com/id/1038320
    https://bugzilla.mozilla.org/show_bug.cgi?id=1345089
    https://security.gentoo.org/glsa/201705-04
    https://www.debian.org/security/2017/dsa-3831
    https://www.debian.org/security/2017/dsa-3872
    https://www.mozilla.org/security/advisories/mfsa2017-10/
    https://www.mozilla.org/security/advisories/mfsa2017-11/
    https://www.mozilla.org/security/advisories/mfsa2017-12/
    https://www.mozilla.org/security/advisories/mfsa2017-13/

    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