SuSE: 2017:2327-2: important: xen
Summary
This update for xen fixes several issues. These security issues were fixed: - CVE-2017-12135: Unbounded recursion in grant table code allowed a malicious guest to crash the host or potentially escalate privileges/leak information (XSA-226, bsc#1051787). - CVE-2017-12137: Incorrectly-aligned updates to pagetables allowed for privilege escalation (XSA-227, bsc#1051788). - CVE-2017-12136: Race conditions with maptrack free list handling allows a malicious guest administrator to crash the host or escalate their privilege to that of the host (XSA-228, bsc#1051789). - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local guest OS users to cause a denial of service (out-of-bounds read) via a crafted DHCP options string (bsc#1049578). - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt (bsc#1046637). - CVE-2017-12855: Premature clearing of GTF_writing / GTF_reading lead to potentially leaking sensitive information (XSA-230 bsc#1052686. These non-security issues were fixed: - bsc#1055695: XEN: 11SP4 and 12SP3 HVM guests can not be restored after the save using xl stack - bsc#1035231: Migration of HVM domU did not use superpages on destination dom0 - bsc#1002573: Optimized LVM functions in block-dmmd block-dmmd 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 Server 12-SP3: zypper in -t patch SUSE-SLE-SERVER-12-SP3-2017-1437=1 To bring your system up-to-date, use "zypper patch". Package List: - SUSE Linux Enterprise Server 12-SP3 (x86_64): xen-4.9.0_11-3.9.1 xen-debugsource-4.9.0_11-3.9.1 xen-doc-html-4.9.0_11-3.9.1 xen-libs-32bit-4.9.0_11-3.9.1 xen-libs-4.9.0_11-3.9.1 xen-libs-debuginfo-32bit-4.9.0_11-3.9.1 xen-libs-debuginfo-4.9.0_11-3.9.1 xen-tools-4.9.0_11-3.9.1 xen-tools-debuginfo-4.9.0_11-3.9.1 xen-tools-domU-4.9.0_11-3.9.1 xen-tools-domU-debuginfo-4.9.0_11-3.9.1
References
#1002573 #1026236 #1027519 #1035231 #1046637
#1049578 #1051787 #1051788 #1051789 #1052686
#1055695
Cross- CVE-2017-10664 CVE-2017-11434 CVE-2017-12135
CVE-2017-12136 CVE-2017-12137 CVE-2017-12855
Affected Products:
SUSE Linux Enterprise Server 12-SP3
https://www.suse.com/security/cve/CVE-2017-10664.html
https://www.suse.com/security/cve/CVE-2017-11434.html
https://www.suse.com/security/cve/CVE-2017-12135.html
https://www.suse.com/security/cve/CVE-2017-12136.html
https://www.suse.com/security/cve/CVE-2017-12137.html
https://www.suse.com/security/cve/CVE-2017-12855.html
https://bugzilla.suse.com/1002573
https://bugzilla.suse.com/1026236
https://bugzilla.suse.com/1027519
https://bugzilla.suse.com/1035231
https://bugzilla.suse.com/1046637
https://bugzilla.suse.com/1049578
https://bugzilla.suse.com/1051787
https://bugzilla.suse.com/1051788
https://bugzilla.suse.com/1051789
https://bugzilla.suse.com/1052686
https://bugzilla.suse.com/1055695
![Dist Suse](/images/distros/dist-suse.gif)