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AUSCERT External Security Bulletin Redistribution
ESB-2017.2213.2
SUSE Security Update: Security update for xen
17 November 2017
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: xen
Publisher: SUSE
Operating System: SUSE
Impact/Access: Increased Privileges -- Existing Account
Denial of Service -- Remote/Unauthenticated
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-12855 CVE-2017-12137 CVE-2017-12135
CVE-2017-11434 CVE-2017-11334 CVE-2017-10664
Reference: ESB-2017.2203
Original Bulletin:
https://www.suse.com/support/update/announcement/2017/suse-su-20172327-2/
https://www.suse.com/support/update/announcement/2017/suse-su-20172339-1/
Comment: This bulletin contains two (2) SUSE security advisories.
Revision History: November 17 2017: Patched on SUSE Linux
Enterprise Server 12-SP3
September 5 2017: Initial Release
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SUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2017:2327-2
Rating: important
References: #1002573 #1026236 #1027519 #1035231 #1046637
#1049578 #1051787 #1051788 #1051789 #1052686
#1055695
Cross-References: 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
______________________________________________________________________________
An update that solves 6 vulnerabilities and has 5 fixes is
now available.
Description:
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:
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
SUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2017:2339-1
Rating: important
References: #1046637 #1048920 #1049578 #1051787 #1051788
#1052686
Cross-References: CVE-2017-10664 CVE-2017-11334 CVE-2017-11434
CVE-2017-12135 CVE-2017-12137 CVE-2017-12855
Affected Products:
SUSE Linux Enterprise Server 11-SP3-LTSS
SUSE Linux Enterprise Point of Sale 11-SP3
SUSE Linux Enterprise Debuginfo 11-SP3
______________________________________________________________________________
An update that fixes 6 vulnerabilities is now available.
Description:
This update for xen fixes the following issues:
- CVE-2017-12855: Premature clearing of GTF_writing / GTF_reading lead to
potentially leaking sensitive information (XSA-230, bsc#1052686).
- 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-2017-11334: The address_space_write_continue function in exec.c
allowed local guest OS privileged users to cause a denial of service
(out-of-bounds access and guest instance crash) by leveraging use of
qemu_map_ram_ptr to access guest ram block area (bsc#1048920).
- 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).
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 11-SP3-LTSS:
zypper in -t patch slessp3-xen-13259=1
- SUSE Linux Enterprise Point of Sale 11-SP3:
zypper in -t patch sleposp3-xen-13259=1
- SUSE Linux Enterprise Debuginfo 11-SP3:
zypper in -t patch dbgsp3-xen-13259=1
To bring your system up-to-date, use "zypper patch".
Package List:
- SUSE Linux Enterprise Server 11-SP3-LTSS (i586 x86_64):
xen-kmp-default-4.2.5_21_3.0.101_0.47.105-45.5.1
xen-libs-4.2.5_21-45.5.1
xen-tools-domU-4.2.5_21-45.5.1
- SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64):
xen-4.2.5_21-45.5.1
xen-doc-html-4.2.5_21-45.5.1
xen-doc-pdf-4.2.5_21-45.5.1
xen-libs-32bit-4.2.5_21-45.5.1
xen-tools-4.2.5_21-45.5.1
- SUSE Linux Enterprise Server 11-SP3-LTSS (i586):
xen-kmp-pae-4.2.5_21_3.0.101_0.47.105-45.5.1
- SUSE Linux Enterprise Point of Sale 11-SP3 (i586):
xen-kmp-default-4.2.5_21_3.0.101_0.47.105-45.5.1
xen-kmp-pae-4.2.5_21_3.0.101_0.47.105-45.5.1
xen-libs-4.2.5_21-45.5.1
xen-tools-domU-4.2.5_21-45.5.1
- SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64):
xen-debuginfo-4.2.5_21-45.5.1
xen-debugsource-4.2.5_21-45.5.1
References:
https://www.suse.com/security/cve/CVE-2017-10664.html
https://www.suse.com/security/cve/CVE-2017-11334.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-2017-12137.html
https://www.suse.com/security/cve/CVE-2017-12855.html
https://bugzilla.suse.com/1046637
https://bugzilla.suse.com/1048920
https://bugzilla.suse.com/1049578
https://bugzilla.suse.com/1051787
https://bugzilla.suse.com/1051788
https://bugzilla.suse.com/1052686
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