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  • [SECURITY] [DSA 4313-1] linux security update

    From Salvatore Bonaccorso@1:229/2 to All on Mon Oct 8 22:50:02 2018
    From: [email protected]

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    - ------------------------------------------------------------------------- Debian Security Advisory DSA-4313-1 [email protected] https://www.debian.org/security/ Salvatore Bonaccorso October 08, 2018 https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package : linux
    CVE ID : CVE-2018-15471 CVE-2018-18021

    Several vulnerabilities have been discovered in the Linux kernel that
    may lead to a privilege escalation, denial of service or information
    leaks.

    CVE-2018-15471 (XSA-270)

    Felix Wilhelm of Google Project Zero discovered a flaw in the hash
    handling of the xen-netback Linux kernel module. A malicious or
    buggy frontend may cause the (usually privileged) backend to make
    out of bounds memory accesses, potentially resulting in privilege
    escalation, denial of service, or information leaks.

    https://xenbits.xen.org/xsa/advisory-270.html

    CVE-2018-18021

    It was discovered that the KVM subsystem on the arm64 platform does
    not properly handle the KVM_SET_ON_REG ioctl. An attacker who can
    create KVM based virtual machines can take advantage of this flaw
    for denial of service (hypervisor panic) or privilege escalation
    (arbitrarily redirect the hypervisor flow of control with full
    register control).

    For the stable distribution (stretch), these problems have been fixed in version 4.9.110-3+deb9u6.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to its security
    tracker page at:
    https://security-tracker.debian.org/tracker/linux

    Further information about Debian Security Advisories, how to apply
    these updates to your system and frequently asked questions can be
    found at: https://www.debian.org/security/

    Mailing list: [email protected]
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    --- SoupGate-Win32 v1.05
    * Origin: you cannot sedate... all the things you hate (1:229/2)