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AUSCERT External Security Bulletin Redistribution
ESB-2017.3115
SUSE Security Update: Security update for xen
6 December 2017
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AusCERT Security Bulletin Summary
---------------------------------
Product: xen
Publisher: SUSE
Operating System: SUSE
Impact/Access: Execute Arbitrary Code/Commands -- Existing Account
Increased Privileges -- Existing Account
Denial of Service -- Existing Account
Access Confidential Data -- Existing Account
Resolution: Patch/Upgrade
CVE Names: CVE-2017-15597 CVE-2017-15595 CVE-2017-15592
CVE-2017-15289
Reference: ESB-2017.3088
ESB-2017.3059
ESB.2017.3024
Original Bulletin:
https://www.suse.com/support/update/announcement/2017/suse-su-20173212-1/
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SUSE Security Update: Security update for xen
______________________________________________________________________________
Announcement ID: SUSE-SU-2017:3212-1
Rating: important
References: #1061075 #1061081 #1061086 #1063123 #1068187
#1068191
Cross-References: CVE-2017-15289 CVE-2017-15592 CVE-2017-15595
CVE-2017-15597
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 solves four vulnerabilities and has two
fixes is now available.
Description:
This update for xen fixes several issues.
These security issues were fixed:
- bsc#1068187: Failure to recognize errors in the Populate on Demand (PoD)
code allowed for DoS (XSA-246)
- bsc#1068191: Missing p2m error checking in PoD code allowed unprivileged
guests to retain a writable mapping of freed memory leading to
information leaks, privilege escalation or DoS (XSA-247).
- CVE-2017-15289: The mode4and5 write functions allowed local OS guest
privileged users to cause a denial of service (out-of-bounds write
access and Qemu process crash) via vectors related to dst calculation
(bsc#1063123)
- CVE-2017-15597: A grant copy operation being done on a grant of a dying
domain allowed a malicious guest administrator to corrupt hypervisor
memory, allowing for DoS or potentially privilege escalation and
information leaks (bsc#1061075).
- CVE-2017-15595: x86 PV guest OS users were able to cause a DoS
(unbounded recursion, stack consumption, and hypervisor crash) or
possibly gain privileges via crafted page-table stacking (bsc#1061081).
- CVE-2017-15592: x86 HVM guest OS users were able to cause a DoS
(hypervisor crash) or possibly gain privileges because self-linear
shadow mappings were mishandled for translated guests (bsc#1061086).
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-13366=1
- SUSE Linux Enterprise Point of Sale 11-SP3:
zypper in -t patch sleposp3-xen-13366=1
- SUSE Linux Enterprise Debuginfo 11-SP3:
zypper in -t patch dbgsp3-xen-13366=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_0.47.106.8-45.16.1
xen-libs-4.2.5_21-45.16.1
xen-tools-domU-4.2.5_21-45.16.1
- SUSE Linux Enterprise Server 11-SP3-LTSS (x86_64):
xen-4.2.5_21-45.16.1
xen-doc-html-4.2.5_21-45.16.1
xen-doc-pdf-4.2.5_21-45.16.1
xen-libs-32bit-4.2.5_21-45.16.1
xen-tools-4.2.5_21-45.16.1
- SUSE Linux Enterprise Server 11-SP3-LTSS (i586):
xen-kmp-pae-4.2.5_21_3.0.101_0.47.106.8-45.16.1
- SUSE Linux Enterprise Point of Sale 11-SP3 (i586):
xen-kmp-default-4.2.5_21_3.0.101_0.47.106.8-45.16.1
xen-kmp-pae-4.2.5_21_3.0.101_0.47.106.8-45.16.1
xen-libs-4.2.5_21-45.16.1
xen-tools-domU-4.2.5_21-45.16.1
- SUSE Linux Enterprise Debuginfo 11-SP3 (i586 x86_64):
xen-debuginfo-4.2.5_21-45.16.1
xen-debugsource-4.2.5_21-45.16.1
References:
https://www.suse.com/security/cve/CVE-2017-15289.html
https://www.suse.com/security/cve/CVE-2017-15592.html
https://www.suse.com/security/cve/CVE-2017-15595.html
https://www.suse.com/security/cve/CVE-2017-15597.html
https://bugzilla.suse.com/1061075
https://bugzilla.suse.com/1061081
https://bugzilla.suse.com/1061086
https://bugzilla.suse.com/1063123
https://bugzilla.suse.com/1068187
https://bugzilla.suse.com/1068191
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