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Debian Security Advisory DSA-3361-1                   security@debian.org
https://www.debian.org/security/                     Salvatore Bonaccorso
September 18, 2015                    https://www.debian.org/security/faq
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Package        : qemu
CVE ID         : CVE-2015-5278 CVE-2015-5279 CVE-2015-6815 CVE-2015-6855
Debian Bug     : 798101 799073 799074

Several vulnerabilities were discovered in qemu, a fast processor
emulator.

CVE-2015-5278

    Qinghao Tang of QIHU 360 Inc. discovered an infinite loop issue in
    the NE2000 NIC emulation. A privileged guest user could use this
    flaw to mount a denial of service (QEMU process crash).

CVE-2015-5279

    Qinghao Tang of QIHU 360 Inc. discovered a heap buffer overflow flaw
    in the NE2000 NIC emulation. A privileged guest user could use this
    flaw to mount a denial of service (QEMU process crash), or
    potentially to execute arbitrary code on the host with the
    privileges of the hosting QEMU process.

CVE-2015-6815

    Qinghao Tang of QIHU 360 Inc. discovered an infinite loop issue in
    the e1000 NIC emulation. A privileged guest user could use this flaw
    to mount a denial of service (QEMU process crash).

CVE-2015-6855

    Qinghao Tang of QIHU 360 Inc. discovered a flaw in the IDE
    subsystem in QEMU occurring while executing IDE's
    WIN_READ_NATIVE_MAX command to determine the maximum size of a
    drive. A privileged guest user could use this flaw to mount a
    denial of service (QEMU process crash).

For the oldstable distribution (wheezy), these problems have been fixed
in version 1.1.2+dfsg-6a+deb7u11.

For the stable distribution (jessie), these problems have been fixed in
version 1:2.1+dfsg-12+deb8u4.

For the testing distribution (stretch), these problems have been fixed
in version 1:2.4+dfsg-3 or earlier.

For the unstable distribution (sid), these problems have been fixed in
version 1:2.4+dfsg-3 or earlier.

We recommend that you upgrade your qemu 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@lists.debian.org
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