SuSE: 2017:0571-1: important: xen
Summary
This update for xen fixes several issues. These security issues were fixed: - CVE-2017-2620: In CIRRUS_BLTMODE_MEMSYSSRC mode the bitblit copy routine cirrus_bitblt_cputovideo failed to check the memory region, allowing for an out-of-bounds write that allows for privilege escalation (bsc#1024834). - CVE-2017-2615: An error in the bitblt copy operation could have allowed a malicious guest administrator to cause an out of bounds memory access, possibly leading to information disclosure or privilege escalation (bsc#1023004). - A malicious guest could have, by frequently rebooting over extended periods of time, run the host system out of memory, resulting in a Denial of Service (DoS) (bsc#1022871) - CVE-2016-9921: The Cirrus CLGD 54xx VGA Emulator support was vulnerable to a divide by zero issue while copying VGA data. A privileged user inside guest could have used this flaw to crash the process instance on the host, resulting in DoS (bsc#1015169 These non-security issues were fixed: - bsc#1000195: Prevent panic on CPU0 while booting on SLES 11 SP3 - bsc#1002496: Added support for reloading clvm in block-dmmd block-dmmd - bsc#1005028: Fixed building Xen RPMs from Sources Patch Instructions: To install this SUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product: - SUSE Linux Enterprise Software Development Kit 12-SP2: zypper in -t patch SUSE-SLE-SDK-12-SP2-2017-296=1 - SUSE Linux Enterprise Server 12-SP2: zypper in -t patch SUSE-SLE-SERVER-12-SP2-2017-296=1 - SUSE Linux Enterprise Desktop 12-SP2: zypper in -t patch SUSE-SLE-DESKTOP-12-SP2-2017-296=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Software Development Kit 12-SP2 (aarch64 x86_64): xen-debugsource-4.7.1_06-31.1 xen-devel-4.7.1_06-31.1 - SUSE Linux Enterprise Server 12-SP2 (x86_64): xen-4.7.1_06-31.1 xen-debugsource-4.7.1_06-31.1 xen-doc-html-4.7.1_06-31.1 xen-libs-32bit-4.7.1_06-31.1 xen-libs-4.7.1_06-31.1 xen-libs-debuginfo-32bit-4.7.1_06-31.1 xen-libs-debuginfo-4.7.1_06-31.1 xen-tools-4.7.1_06-31.1 xen-tools-debuginfo-4.7.1_06-31.1 xen-tools-domU-4.7.1_06-31.1 xen-tools-domU-debuginfo-4.7.1_06-31.1 - SUSE Linux Enterprise Desktop 12-SP2 (x86_64): xen-4.7.1_06-31.1 xen-debugsource-4.7.1_06-31.1 xen-libs-32bit-4.7.1_06-31.1 xen-libs-4.7.1_06-31.1 xen-libs-debuginfo-32bit-4.7.1_06-31.1 xen-libs-debuginfo-4.7.1_06-31.1
References
#1000195 #1002496 #1005028 #1012651 #1014298
#1014300 #1015169 #1016340 #1022871 #1023004
#1024834
Cross- CVE-2016-9921 CVE-2016-9922 CVE-2017-2615
CVE-2017-2620
Affected Products:
SUSE Linux Enterprise Software Development Kit 12-SP2
SUSE Linux Enterprise Server 12-SP2
SUSE Linux Enterprise Desktop 12-SP2
https://www.suse.com/security/cve/CVE-2016-9921.html
https://www.suse.com/security/cve/CVE-2016-9922.html
https://www.suse.com/security/cve/CVE-2017-2615.html
https://www.suse.com/security/cve/CVE-2017-2620.html
https://bugzilla.suse.com/1000195
https://bugzilla.suse.com/1002496
https://bugzilla.suse.com/1005028
https://bugzilla.suse.com/1012651
https://bugzilla.suse.com/1014298
https://bugzilla.suse.com/1014300
https://bugzilla.suse.com/1015169
https://bugzilla.suse.com/1016340
https://bugzilla.suse.com/1022871
https://bugzilla.suse.com/1023004
https://bugzilla.suse.com/1024834