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openSUSE Security Update : xen (openSUSE-2017-1022)
critical Nessus Plugin ID 103158
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Synopsis
The remote openSUSE host is missing a security update.Description
This update for xen to version 4.7.3 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 CVE-2017-12855).
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
- bsc#1037840: Xen-detect always showed HVM for PV guests
This update was imported from the SUSE:SLE-12-SP2:Update update project.
Solution
Update the affected xen packages.See Also
https://bugzilla.opensuse.org/show_bug.cgi?id=1002573
https://bugzilla.opensuse.org/show_bug.cgi?id=1026236
https://bugzilla.opensuse.org/show_bug.cgi?id=1035231
https://bugzilla.opensuse.org/show_bug.cgi?id=1037840
https://bugzilla.opensuse.org/show_bug.cgi?id=1046637
https://bugzilla.opensuse.org/show_bug.cgi?id=1049578
https://bugzilla.opensuse.org/show_bug.cgi?id=1051787
https://bugzilla.opensuse.org/show_bug.cgi?id=1051788
https://bugzilla.opensuse.org/show_bug.cgi?id=1051789
Plugin Details
Severity: Critical
ID: 103158
File Name: openSUSE-2017-1022.nasl
Version: 3.5
Type: local
Agent: unix
Family: SuSE Local Security Checks
Published: 9/13/2017
Updated: 1/19/2021
Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Frictionless Assessment AWS, Frictionless Assessment Azure, Nessus Agent, Nessus
Risk Information
VPR
Risk Factor: Medium
Score: 6.5
CVSS v2
Risk Factor: High
Base Score: 9
Vector: CVSS2#AV:N/AC:L/Au:S/C:C/I:C/A:C
CVSS v3
Risk Factor: Critical
Base Score: 9.9
Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Vulnerability Information
CPE: p-cpe:/a:novell:opensuse:xen-libs-debuginfo-32bit, p-cpe:/a:novell:opensuse:xen-debugsource, p-cpe:/a:novell:opensuse:xen-libs-32bit, p-cpe:/a:novell:opensuse:xen-devel, p-cpe:/a:novell:opensuse:xen-doc-html, cpe:/o:novell:opensuse:42.2, p-cpe:/a:novell:opensuse:xen-libs-debuginfo, p-cpe:/a:novell:opensuse:xen-tools-domu-debuginfo, p-cpe:/a:novell:opensuse:xen, p-cpe:/a:novell:opensuse:xen-libs, p-cpe:/a:novell:opensuse:xen-tools, p-cpe:/a:novell:opensuse:xen-tools-debuginfo, p-cpe:/a:novell:opensuse:xen-tools-domu
Required KB Items: Host/local_checks_enabled, Host/SuSE/release, Host/SuSE/rpm-list, Host/cpu
Patch Publication Date: 9/8/2017
Reference Information
CVE: CVE-2016-9603, CVE-2017-10664, CVE-2017-11434, CVE-2017-12135, CVE-2017-12136, CVE-2017-12137, CVE-2017-12855