[IT-SecNots] [SECURITY] [DSA 3329-1] linux security update

[Salvatore Bonaccorso <carnil AT debian.org>]

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Debian Security Advisory DSA-3329-1                   security AT debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
August 07, 2015                       https://www.debian.org/security/faq
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Package        : linux
CVE ID         : CVE-2015-1333 CVE-2015-3212 CVE-2015-4692 CVE-2015-4700
                 CVE-2015-5364 CVE-2015-5366 CVE-2015-5697 CVE-2015-5706
                 CVE-2015-5707

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

CVE-2015-1333

    Colin Ian King discovered a flaw in the add_key function of the
    Linux kernel's keyring subsystem. A local user can exploit this flaw
    to cause a denial of service due to memory exhaustion.

CVE-2015-3212

    Ji Jianwen of Red Hat Engineering discovered a flaw in the handling
    of the SCTPs automatic handling of dynamic multi-homed connections.
    A local attacker could use this flaw to cause a crash or potentially
    for privilege escalation.

CVE-2015-4692

    A NULL pointer dereference flaw was found in the
    kvm_apic_has_events function in the KVM subsystem. A unprivileged
    local user could exploit this flaw to crash the system kernel
    resulting in denial of service.

CVE-2015-4700

    Daniel Borkmann discovered a flaw in the Linux kernel implementation
    of the Berkeley Packet Filter which can be used by a local user to
    crash the system.

CVE-2015-5364

    It was discovered that the Linux kernel does not properly handle
    invalid UDP checksums. A remote attacker could exploit this flaw to
    cause a denial of service using a flood of UDP packets with invalid
    checksums.

CVE-2015-5366

    It was discovered that the Linux kernel does not properly handle
    invalid UDP checksums. A remote attacker can cause a denial of
    service against applications that use epoll by injecting a single
    packet with an invalid checksum.

CVE-2015-5697

    A flaw was discovered in the md driver in the Linux kernel leading
    to an information leak.

CVE-2015-5706

    An user triggerable use-after-free vulnerability in path lookup in
    the Linux kernel could potentially lead to privilege escalation.

CVE-2015-5707

    An integer overflow in the SCSI generic driver in the Linux kernel
    was discovered. A local user with write permission on a SCSI generic
    device could potentially exploit this flaw for privilege escalation.

For the oldstable distribution (wheezy), these problems have been fixed
in version 3.2.68-1+deb7u3. CVE-2015-1333, CVE-2015-4692 and
CVE-2015-5706 do not affect the wheezy distribution.

For the stable distribution (jessie), these problems have been fixed in
version 3.16.7-ckt11-1+deb8u3, except CVE-2015-5364 and CVE-2015-5366
which were fixed already in DSA-3313-1.

For the unstable distribution (sid), these problems have been fixed in
version 4.1.3-1 or earlier versions.

We recommend that you upgrade your linux packages.

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: debian-security-announce AT lists.debian.org
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