CVE-2013-4345

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    CVE-2013-4345

    Published: 10 Oct 2013Last Modified: 10 Apr 2026

    Summary:

    Details: Off-by-one error in the get_prng_bytes function in crypto/ansi_cprng.c in the Linux kernel through 3.11.4 makes it easier for context-dependent attackers to defeat cryptographic protection mechanisms via multiple requests for small amounts of data, leading to improper management of the state of the consumed data.

    References: http://rhn.redhat.com/errata/RHSA-2013-1449.html, http://rhn.redhat.com/errata/RHSA-2013-1490.html, http://rhn.redhat.com/errata/RHSA-2013-1645.html, http://www.ubuntu.com/usn/USN-2064-1, http://www.ubuntu.com/usn/USN-2065-1, http://www.ubuntu.com/usn/USN-2068-1, http://www.ubuntu.com/usn/USN-2070-1, http://www.ubuntu.com/usn/USN-2071-1, http://www.ubuntu.com/usn/USN-2072-1, http://www.ubuntu.com/usn/USN-2074-1, http://www.ubuntu.com/usn/USN-2075-1, http://www.ubuntu.com/usn/USN-2076-1, http://www.ubuntu.com/usn/USN-2109-1, http://www.ubuntu.com/usn/USN-2110-1, http://www.ubuntu.com/usn/USN-2158-1, http://marc.info/?l=linux-crypto-vger&m=137942122902845&w=2, https://bugzilla.redhat.com/show_bug.cgi?id=1007690, http://www.securityfocus.com/bid/62740

    Affected packages

    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
    CVE-2013-4345 | CVE-DB