This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--===============5960897697383723981==
Content-Type: multipart/signed; micalg=pgp-sha512;
protocol="application/pgp-signature";
boundary="KML1SfrNoLzhPo1fbyaTYdJOWycoseQIn"
This is an OpenPGP/MIME signed message (RFC 4880 and 3156)
--KML1SfrNoLzhPo1fbyaTYdJOWycoseQIn
Content-Type: multipart/mixed;
boundary="BILIwAP27FO8OvCrZvDz3xSZsLoYrqdYV";
protected-headers="v1"
From: Marc Deslauriers <marc.deslauriers@canonical.com>
Reply-To: Ubuntu Security <security@ubuntu.com>
To: ubuntu-security-announce@lists.ubuntu.com
Message-ID: <2da31005-ef3a-d30f-71f9-22335f99a5e9@canonical.com>
Subject: [USN-3575-1] QEMU vulnerabilities
--BILIwAP27FO8OvCrZvDz3xSZsLoYrqdYV
Content-Type: text/plain; charset=utf-8
Content-Language: en-C
Content-Transfer-Encoding: quoted-printable
==========================================================================
Ubuntu Security Notice USN-3575-1
February 20, 2018
qemu vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- Ubuntu 17.10
- Ubuntu 16.04 LTS
- Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in QEMU.
Software Description:
- qemu: Machine emulator and virtualizer
Details:
It was discovered that QEMU incorrectly handled guest ram. A privileged
attacker inside the guest could use this issue to cause QEMU to crash,
resulting in a denial of service. This issue only affected Ubuntu 14.04 LTS
and Ubuntu 16.04 LTS. (CVE-2017-11334)
David Buchanan discovered that QEMU incorrectly handled the VGA device. A
privileged attacker inside the guest could use this issue to cause QEMU to
crash, resulting in a denial of service. This issue was only addressed in
Ubuntu 17.10. (CVE-2017-13672)
Thomas Garnier discovered that QEMU incorrectly handled multiboot. An
attacker could use this issue to cause QEMU to crash, resulting in a denial
of service, or possibly execute arbitrary code on the host. In the default
installation, when QEMU is used with libvirt, attackers would be isolated
by the libvirt AppArmor profile. This issue only affected Ubuntu 14.04 LTS
and Ubuntu 16.04 LTS. (CVE-2017-14167)
Tuomas Tynkkynen discovered that QEMU incorrectly handled VirtFS directory
sharing. An attacker could use this issue to obtain sensitive information
from host memory. (CVE-2017-15038)
Eric Blake discovered that QEMU incorrectly handled memory in the
NBD server. An attacker could use this issue to cause the NBD server to
crash, resulting in a denial of service. This issue only affected Ubuntu
17.10. (CVE-2017-15118)
Eric Blake discovered that QEMU incorrectly handled certain options to the
NBD server. An attacker could use this issue to cause the NBD server to
crash, resulting in a denial of service. This issue only affected Ubuntu
14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-15119)
Daniel Berrange discovered that QEMU incorrectly handled the VNC server. A
remote attacker could possibly use this issue to consume memory, resulting
in a denial of service. This issue was only addressed in Ubuntu 17.10.
(CVE-2017-15124)
Carl Brassey discovered that QEMU incorrectly handled certain websockets. A
remote attacker could possibly use this issue to consume memory, resulting
in a denial of service. This issue only affected Ubuntu 17.10.
(CVE-2017-15268)
Guoxiang Niu discovered that QEMU incorrectly handled the Cirrus VGA
device. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service. (CVE-2017-15289)
Cyrille Chatras discovered that QEMU incorrectly handled certain PS2 values
during migration. An attacker could possibly use this issue to cause QEMU
to crash, resulting in a denial of service, or possibly execute arbitrary
code. This issue only affected Ubuntu 16.04 LTS and Ubuntu 17.10.
(CVE-2017-16845)
It was discovered that QEMU incorrectly handled the Virtio Vring
implementation. An attacker could possibly use this issue to cause QEMU to
crash, resulting in a denial of service. This issue only affected Ubuntu
16.04 LTS and Ubuntu 17.10. (CVE-2017-17381)
Eric Blake discovered that QEMU incorrectly handled certain rounding
operations. An attacker could possibly use this issue to cause QEMU to
crash, resulting in a denial of service. This issue only affected Ubuntu
14.04 LTS and Ubuntu 16.04 LTS. (CVE-2017-18043)
Jiang Xin and Lin ZheCheng discovered that QEMU incorrectly handled the
VGA device. A privileged attacker inside the guest could use this issue to
cause QEMU to crash, resulting in a denial of service. (CVE-2018-5683)
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 17.10:
qemu-system 1:2.10+dfsg-0ubuntu3.5
qemu-system-aarch64 1:2.10+dfsg-0ubuntu3.5
qemu-system-arm 1:2.10+dfsg-0ubuntu3.5
qemu-system-mips 1:2.10+dfsg-0ubuntu3.5
qemu-system-misc 1:2.10+dfsg-0ubuntu3.5
qemu-system-ppc 1:2.10+dfsg-0ubuntu3.5
qemu-system-s390x 1:2.10+dfsg-0ubuntu3.5
qemu-system-sparc 1:2.10+dfsg-0ubuntu3.5
qemu-system-x86 1:2.10+dfsg-0ubuntu3.5
Ubuntu 16.04 LTS:
qemu-system 1:2.5+dfsg-5ubuntu10.22
qemu-system-aarch64 1:2.5+dfsg-5ubuntu10.22
qemu-system-arm 1:2.5+dfsg-5ubuntu10.22
qemu-system-mips 1:2.5+dfsg-5ubuntu10.22
qemu-system-misc 1:2.5+dfsg-5ubuntu10.22
qemu-system-ppc 1:2.5+dfsg-5ubuntu10.22
qemu-system-s390x 1:2.5+dfsg-5ubuntu10.22
qemu-system-sparc 1:2.5+dfsg-5ubuntu10.22
qemu-system-x86 1:2.5+dfsg-5ubuntu10.22
Ubuntu 14.04 LTS:
qemu-system 2.0.0+dfsg-2ubuntu1.39
qemu-system-aarch64 2.0.0+dfsg-2ubuntu1.39
qemu-system-arm 2.0.0+dfsg-2ubuntu1.39
qemu-system-mips 2.0.0+dfsg-2ubuntu1.39
qemu-system-misc 2.0.0+dfsg-2ubuntu1.39
qemu-system-ppc 2.0.0+dfsg-2ubuntu1.39
qemu-system-sparc 2.0.0+dfsg-2ubuntu1.39
qemu-system-x86 2.0.0+dfsg-2ubuntu1.39
After a standard system update you need to restart all QEMU virtual
machines to make all the necessary changes.
References:
https://www.ubuntu.com/usn/usn-3575-1
CVE-2017-11334, CVE-2017-13672, CVE-2017-14167, CVE-2017-15038,
CVE-2017-15118, CVE-2017-15119, CVE-2017-15124, CVE-2017-15268,
CVE-2017-15289, CVE-2017-16845, CVE-2017-17381, CVE-2017-18043,
CVE-2018-5683
Package Information:
https://launchpad.net/ubuntu/+source/qemu/1:2.10+dfsg-0ubuntu3.5
https://launchpad.net/ubuntu/+source/qemu/1:2.5+dfsg-5ubuntu10.22
https://launchpad.net/ubuntu/+source/qemu/2.0.0+dfsg-2ubuntu1.39
--BILIwAP27FO8OvCrZvDz3xSZsLoYrqdYV--
--KML1SfrNoLzhPo1fbyaTYdJOWycoseQIn
Content-Type: application/pgp-signature; name="signature.asc"
Content-Description: OpenPGP digital signature
Content-Disposition: attachment; filename="signature.asc"
-----BEGIN PGP SIGNATURE-----
iQIcBAEBCgAGBQJajJBCAAoJEGVp2FWnRL6TzN0P/2KlnRPMAODzBpOZCJVkuWWy
V54iVayVnU5zSxHQalUu1MZntSrUi12+UniXPIFNzzKLsOq181zHL18CmumLiohQ
rjqfdkvN+vtjHWtrVYdIB5GvGdsSgsslh+1AhyqgHKdsxB+Hjoxh1y3g6mCpAoFS
dSSBnx8v5MR5QiJdTAi27tXNFhP3tb7zIA00Wp7UhoRDVWitRwxnUYwUGWagJ78M
ub1MPLVCsMB1y2ucztBW7sliVIvABsnCsMD2X/yrnvuk1APkazQAPed4DnCzUGhT
9zyBIwcQAogyqfPbAPMc6LBs41QWxKJRYu2ZhcWkpSFjFofywluERxO2Efd5zyzg
MmW9l+1JcC5HDBlXjUxJc2gBObZ150UYmwMOzjp7Uq09xEZDyJeo1+zZS9ATr/Xe
p97a1yRPNuzjeTsX1zY6ioNpLnlhts0OKI0F0vZbq5sW2WCJwvu8+VN8kjyT4Kva
Y1VVbqgTLkJc+4cxdip4vfR/rvp2R+63UdwNOOG6VYKsGaLwqnRTW8nlXrD6YYg5
+c6Z4p0ryZMgHkuyQ+Z/br31OcCguB0evNRsMf49iQBIkNwEj0F2eCSajTrnS6Oq
rho4oGs7gOAYh9fZ9L+GPZaE4T+BVV0Otz1AjX/ki8Yiyp/lPonGCBkMcxhmDeGF
plLZPGORn0iWEIZFz5Di
=0m5y
-----END PGP SIGNATURE-----
--KML1SfrNoLzhPo1fbyaTYdJOWycoseQIn--
--===============5960897697383723981==
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: base64
Content-Disposition: inline
LS0gCnVidW50dS1zZWN1cml0eS1hbm5vdW5jZSBtYWlsaW5nIGxpc3QKdWJ1bnR1LXNlY3VyaXR5
LWFubm91bmNlQGxpc3RzLnVidW50dS5jb20KTW9kaWZ5IHNldHRpbmdzIG9yIHVuc3Vic2NyaWJl
IGF0OiBodHRwczovL2xpc3RzLnVidW50dS5jb20vbWFpbG1hbi9saXN0aW5mby91YnVudHUtc2Vj
dXJpdHktYW5ub3VuY2UK
--===============5960897697383723981==--
|
