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    CVE-2017-7482

    In the Linux kernel before version 4.12, Kerberos 5 tickets decoded when using the RXRPC keys incorrectly assumes the size of a field. This could lead to the size-remaining variable wrapping and the data pointer going over the end of the buffer. This could possibly lead to memory corruption and possible privilege escalation.

    Published:Jun 26, 2017
    Last Modified:Nov 21, 2024
    EPS:Jul 30, 2018
    EPSS Score:0.00161
    CVSS Score:7.8

    Affected Products

    Vendor
    Debian
    Product
    Debian Linux
    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Mrg

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-190 Integer Overflow or Wraparound

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-92 Forced Integer Overflow

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    References

    http://seclists.org/oss-sec/2017/q2/602
    http://www.securityfocus.com/bid/99299
    http://www.securitytracker.com/id/1038787
    https://access.redhat.com/errata/RHSA-2019:0641
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0
    https://www.debian.org/security/2017/dsa-3927
    https://www.debian.org/security/2017/dsa-3945
    http://seclists.org/oss-sec/2017/q2/602
    http://www.securityfocus.com/bid/99299
    http://www.securitytracker.com/id/1038787
    https://access.redhat.com/errata/RHSA-2019:0641
    https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2017-7482
    https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=5f2f97656ada8d811d3c1bef503ced266fcd53a0
    https://www.debian.org/security/2017/dsa-3927
    https://www.debian.org/security/2017/dsa-3945

    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