CVE-2015-7972

Upstream information

CVE-2015-7972 at MITRE

Description

The (1) libxl_set_memory_target function in tools/libxl/libxl.c and (2) libxl__build_post function in tools/libxl/libxl_dom.c in Xen 3.4.x through 4.6.x do not properly calculate the balloon size when using the populate-on-demand (PoD) system, which allows local HVM guest users to cause a denial of service (guest crash) via unspecified vectors related to "heavy memory pressure."

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having moderate severity.

CVSS v2 Scores
	National Vulnerability Database
Base Score	2.1
Vector	AV:L/AC:L/Au:N/C:N/I:N/A:P
Access Vector	Local
Access Complexity	Low
Authentication	None
Confidentiality Impact	None
Integrity Impact	None
Availability Impact	Partial

Note from the SUSE Security Team

The Xen packages in SUSE Linux Enterprise are affected by XSA-150 and XSA-153 related to a DoS when the populate-on-demand option is used. Confirmed source patches were not available in time for the scheduled update. A further update to Xen will contain these fixes.

SUSE Bugzilla entries: 950704 [RESOLVED / FIXED], 951845 [RESOLVED / FIXED]

SUSE Security Advisories:

SUSE-SU-2015:2306-1, published Fri Dec 18 14:12:56 MST 2015
SUSE-SU-2015:2326-1, published Sat Dec 19 08:13:08 MST 2015
SUSE-SU-2015:2328-1, published Sat Dec 19 08:16:17 MST 2015
SUSE-SU-2015:2338-1, published Tue Dec 22 05:11:28 MST 2015
openSUSE-SU-2015:1964-1, published Thu, 12 Nov 2015 12:10:04 +0100 (CET)
openSUSE-SU-2015:1965-1, published Thu, 12 Nov 2015 12:13:12 +0100 (CET)
openSUSE-SU-2015:2003-1, published Tue, 17 Nov 2015 11:10:33 +0100 (CET)

List of released packages

Product(s)	Fixed package version(s)	References
SUSE Linux Enterprise Desktop 11 SP3	`xen >= 4.2.5_18-21.1` `xen-doc-html >= 4.2.5_18-21.1` `xen-doc-pdf >= 4.2.5_18-21.1` `xen-kmp-default >= 4.2.5_18_3.0.101_0.47.71-21.1` `xen-kmp-pae >= 4.2.5_18_3.0.101_0.47.71-21.1` `xen-libs >= 4.2.5_18-21.1` `xen-libs-32bit >= 4.2.5_18-21.1` `xen-tools >= 4.2.5_18-21.1` `xen-tools-domU >= 4.2.5_18-21.1`	Patchnames: sledsp3-xen-20151203-12274
SUSE Linux Enterprise Desktop 11 SP4	`xen >= 4.4.3_06-29.1` `xen-doc-html >= 4.4.3_06-29.1` `xen-kmp-default >= 4.4.3_06_3.0.101_65-29.1` `xen-kmp-pae >= 4.4.3_06_3.0.101_65-29.1` `xen-libs >= 4.4.3_06-29.1` `xen-libs-32bit >= 4.4.3_06-29.1` `xen-tools >= 4.4.3_06-29.1` `xen-tools-domU >= 4.4.3_06-29.1`	Patchnames: sledsp4-xen-20151203-12277
SUSE Linux Enterprise Desktop 12 SP1	`xen >= 4.5.1_12-2.3` `xen-kmp-default >= 4.5.1_12_k3.12.49_11-2.3` `xen-libs >= 4.5.1_12-2.3` `xen-libs-32bit >= 4.5.1_12-2.3`
SUSE Linux Enterprise Desktop 12 SP2	`xen >= 4.7.0_12-23.4` `xen-libs >= 4.7.0_12-23.4` `xen-libs-32bit >= 4.7.0_12-23.4`
SUSE Linux Enterprise Desktop 12 SP3	`xen >= 4.9.0_08-2.2` `xen-libs >= 4.9.0_08-2.2` `xen-libs-32bit >= 4.9.0_08-2.2`
SUSE Linux Enterprise Desktop 12 SP4	`xen >= 4.11.0_08-1.11` `xen-libs >= 4.11.0_08-1.11` `xen-libs-32bit >= 4.11.0_08-1.11`
SUSE Linux Enterprise Desktop 12	`xen >= 4.4.3_06-22.15.1` `xen-kmp-default >= 4.4.3_06_k3.12.48_52.27-22.15.1` `xen-libs >= 4.4.3_06-22.15.1` `xen-libs-32bit >= 4.4.3_06-22.15.1`	Patchnames: SUSE-SLE-DESKTOP-12-2015-1000
SUSE Linux Enterprise High Performance Computing 12 SP5 SUSE Linux Enterprise Server 12 SP5	`xen >= 4.12.1_06-1.1` `xen-doc-html >= 4.12.1_06-1.1` `xen-libs >= 4.12.1_06-1.1` `xen-libs-32bit >= 4.12.1_06-1.1` `xen-tools >= 4.12.1_06-1.1` `xen-tools-domU >= 4.12.1_06-1.1`
SUSE Linux Enterprise Module for Basesystem 15 SP1	`xen-libs >= 4.12.0_12-1.1` `xen-tools-domU >= 4.12.0_12-1.1`
SUSE Linux Enterprise Module for Basesystem 15 SP2	`xen-libs >= 4.13.1_02-1.2` `xen-tools-domU >= 4.13.1_02-1.2`
SUSE Linux Enterprise Module for Basesystem 15	`xen-libs >= 4.10.1_04-1.4` `xen-tools-domU >= 4.10.1_04-1.4`
SUSE Linux Enterprise Module for Server Applications 15 SP1	`xen >= 4.12.0_12-1.1` `xen-devel >= 4.12.0_12-1.1` `xen-tools >= 4.12.0_12-1.1`
SUSE Linux Enterprise Module for Server Applications 15 SP2	`xen >= 4.13.1_02-1.2` `xen-devel >= 4.13.1_02-1.2` `xen-tools >= 4.13.1_02-1.2` `xen-tools-xendomains-wait-disk >= 4.13.1_02-1.2`
SUSE Linux Enterprise Module for Server Applications 15	`xen >= 4.10.1_04-1.4` `xen-devel >= 4.10.1_04-1.4` `xen-tools >= 4.10.1_04-1.4`
SUSE Linux Enterprise Server 11 SP2-LTSS SUSE Linux Enterprise Server for SAP Applications 11 SP2-LTSS	`xen >= 4.1.6_08-23.1` `xen-devel >= 4.1.6_08-23.1` `xen-doc-html >= 4.1.6_08-23.1` `xen-doc-pdf >= 4.1.6_08-23.1` `xen-kmp-default >= 4.1.6_08_3.0.101_0.7.37-23.1` `xen-kmp-pae >= 4.1.6_08_3.0.101_0.7.37-23.1` `xen-kmp-trace >= 4.1.6_08_3.0.101_0.7.37-23.1` `xen-libs >= 4.1.6_08-23.1` `xen-libs-32bit >= 4.1.6_08-23.1` `xen-tools >= 4.1.6_08-23.1` `xen-tools-domU >= 4.1.6_08-23.1`	Patchnames: slessp2-xen-20151201-12273
SUSE Linux Enterprise Server 11 SP3 SUSE Linux Enterprise Server for SAP Applications 11 SP3	`xen >= 4.2.5_18-21.1` `xen-doc-html >= 4.2.5_18-21.1` `xen-doc-pdf >= 4.2.5_18-21.1` `xen-kmp-default >= 4.2.5_18_3.0.101_0.47.71-21.1` `xen-kmp-pae >= 4.2.5_18_3.0.101_0.47.71-21.1` `xen-libs >= 4.2.5_18-21.1` `xen-libs-32bit >= 4.2.5_18-21.1` `xen-tools >= 4.2.5_18-21.1` `xen-tools-domU >= 4.2.5_18-21.1`	Patchnames: slessp3-xen-20151203-12274
SUSE Linux Enterprise Server 11 SP4 SUSE Linux Enterprise Server for SAP Applications 11 SP4	`xen >= 4.4.3_06-29.1` `xen-doc-html >= 4.4.3_06-29.1` `xen-kmp-default >= 4.4.3_06_3.0.101_65-29.1` `xen-kmp-pae >= 4.4.3_06_3.0.101_65-29.1` `xen-libs >= 4.4.3_06-29.1` `xen-libs-32bit >= 4.4.3_06-29.1` `xen-tools >= 4.4.3_06-29.1` `xen-tools-domU >= 4.4.3_06-29.1`	Patchnames: slessp4-xen-20151203-12277
SUSE Linux Enterprise Server 12 SP1	`xen >= 4.5.1_12-2.3` `xen-doc-html >= 4.5.1_12-2.3` `xen-kmp-default >= 4.5.1_12_k3.12.49_11-2.3` `xen-libs >= 4.5.1_12-2.3` `xen-libs-32bit >= 4.5.1_12-2.3` `xen-tools >= 4.5.1_12-2.3` `xen-tools-domU >= 4.5.1_12-2.3`
SUSE Linux Enterprise Server 12 SP2	`xen >= 4.7.0_12-23.4` `xen-doc-html >= 4.7.0_12-23.4` `xen-libs >= 4.7.0_12-23.4` `xen-libs-32bit >= 4.7.0_12-23.4` `xen-tools >= 4.7.0_12-23.4` `xen-tools-domU >= 4.7.0_12-23.4`
SUSE Linux Enterprise Server 12 SP3	`xen >= 4.9.0_08-2.2` `xen-doc-html >= 4.9.0_08-2.2` `xen-libs >= 4.9.0_08-2.2` `xen-libs-32bit >= 4.9.0_08-2.2` `xen-tools >= 4.9.0_08-2.2` `xen-tools-domU >= 4.9.0_08-2.2`
SUSE Linux Enterprise Server 12 SP4	`xen >= 4.11.0_08-1.11` `xen-doc-html >= 4.11.0_08-1.11` `xen-libs >= 4.11.0_08-1.11` `xen-libs-32bit >= 4.11.0_08-1.11` `xen-tools >= 4.11.0_08-1.11` `xen-tools-domU >= 4.11.0_08-1.11`
SUSE Linux Enterprise Server 12 SUSE Linux Enterprise Server for SAP Applications 12	`xen >= 4.4.3_06-22.15.1` `xen-doc-html >= 4.4.3_06-22.15.1` `xen-kmp-default >= 4.4.3_06_k3.12.48_52.27-22.15.1` `xen-libs >= 4.4.3_06-22.15.1` `xen-libs-32bit >= 4.4.3_06-22.15.1` `xen-tools >= 4.4.3_06-22.15.1` `xen-tools-domU >= 4.4.3_06-22.15.1`	Patchnames: SUSE-SLE-SERVER-12-2015-1000
SUSE Linux Enterprise Software Development Kit 11 SP3	`xen >= 4.2.5_18-21.1` `xen-devel >= 4.2.5_18-21.1`	Patchnames: sdksp3-xen-20151203-12274
SUSE Linux Enterprise Software Development Kit 11 SP4	`xen >= 4.4.3_06-29.1` `xen-devel >= 4.4.3_06-29.1`	Patchnames: sdksp4-xen-20151203-12277
SUSE Linux Enterprise Software Development Kit 12 SP1	`xen-devel >= 4.5.1_12-2.3`
SUSE Linux Enterprise Software Development Kit 12 SP2	`xen-devel >= 4.7.0_12-23.4`
SUSE Linux Enterprise Software Development Kit 12 SP3	`xen-devel >= 4.9.0_08-2.2`
SUSE Linux Enterprise Software Development Kit 12 SP4	`xen-devel >= 4.11.0_08-1.11`
SUSE Linux Enterprise Software Development Kit 12 SP5	`xen-devel >= 4.12.1_06-1.1`
SUSE Linux Enterprise Software Development Kit 12	`xen >= 4.4.3_06-22.15.1` `xen-devel >= 4.4.3_06-22.15.1`	Patchnames: SUSE-SLE-SDK-12-2015-1000
openSUSE 13.1	`xen >= 4.3.4_06-50.1` `xen-debugsource >= 4.3.4_06-50.1` `xen-devel >= 4.3.4_06-50.1` `xen-doc-html >= 4.3.4_06-50.1` `xen-kmp-default >= 4.3.4_06_k3.11.10_29-50.1` `xen-kmp-default-debuginfo >= 4.3.4_06_k3.11.10_29-50.1` `xen-kmp-desktop >= 4.3.4_06_k3.11.10_29-50.1` `xen-kmp-desktop-debuginfo >= 4.3.4_06_k3.11.10_29-50.1` `xen-kmp-pae >= 4.3.4_06_k3.11.10_29-50.1` `xen-kmp-pae-debuginfo >= 4.3.4_06_k3.11.10_29-50.1` `xen-libs >= 4.3.4_06-50.1` `xen-libs-32bit >= 4.3.4_06-50.1` `xen-libs-debuginfo >= 4.3.4_06-50.1` `xen-libs-debuginfo-32bit >= 4.3.4_06-50.1` `xen-tools >= 4.3.4_06-50.1` `xen-tools-debuginfo >= 4.3.4_06-50.1` `xen-tools-domU >= 4.3.4_06-50.1` `xen-tools-domU-debuginfo >= 4.3.4_06-50.1` `xen-xend-tools >= 4.3.4_06-50.1` `xen-xend-tools-debuginfo >= 4.3.4_06-50.1`	Patchnames: openSUSE-2015-729
openSUSE Leap 15.0	`xen-libs >= 4.10.0_20-lp150.1.2`	Patchnames: openSUSE Leap 15.0 GA xen-libs
openSUSE Leap 42.1	`xen >= 4.5.1_12-3.1` `xen-debugsource >= 4.5.1_12-3.1` `xen-devel >= 4.5.1_12-3.1` `xen-doc-html >= 4.5.1_12-3.1` `xen-kmp-default >= 4.5.1_12_k4.1.12_1-3.1` `xen-kmp-default-debuginfo >= 4.5.1_12_k4.1.12_1-3.1` `xen-libs >= 4.5.1_12-3.1` `xen-libs-32bit >= 4.5.1_12-3.1` `xen-libs-debuginfo >= 4.5.1_12-3.1` `xen-libs-debuginfo-32bit >= 4.5.1_12-3.1` `xen-tools >= 4.5.1_12-3.1` `xen-tools-debuginfo >= 4.5.1_12-3.1` `xen-tools-domU >= 4.5.1_12-3.1` `xen-tools-domU-debuginfo >= 4.5.1_12-3.1`	Patchnames: openSUSE-2015-730
openSUSE Leap 42.2	`xen >= 4.7.0_12-1.6` `xen-doc-html >= 4.7.0_12-1.6` `xen-libs >= 4.7.0_12-1.6` `xen-tools >= 4.7.0_12-1.6` `xen-tools-domU >= 4.7.0_12-1.6`	Patchnames: openSUSE Leap 42.2 GA xen
openSUSE Leap 42.3	`xen >= 4.9.0_08-2.1` `xen-doc-html >= 4.9.0_08-2.1` `xen-libs >= 4.9.0_08-2.1` `xen-tools >= 4.9.0_08-2.1` `xen-tools-domU >= 4.9.0_08-2.1`	Patchnames: openSUSE Leap 42.3 GA xen
openSUSE Tumbleweed	`xen >= 4.7.0_12-1.3` `xen-devel >= 4.7.0_12-1.3` `xen-doc-html >= 4.7.0_12-1.3` `xen-libs >= 4.7.0_12-1.3` `xen-libs-32bit >= 4.7.0_12-1.3` `xen-tools >= 4.7.0_12-1.3` `xen-tools-domU >= 4.7.0_12-1.3`	Patchnames: openSUSE Tumbleweed GA xen

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification.

Product(s)	Source package	State
SLES for SAP Applications	xen	Released
SUSE Linux Enterprise Desktop 11 SP2	xen	Released
SUSE Linux Enterprise Desktop 11 SP3	xen	Released
SUSE Linux Enterprise Desktop 11 SP4	xen	Released
SUSE Linux Enterprise Desktop 12	xen	Released
SUSE Linux Enterprise Server 11 SP1 LTSS	xen	Released
SUSE Linux Enterprise Server 11 SP2	xen	Released
SUSE Linux Enterprise Server 11 SP2 LTSS	xen	Released
SUSE Linux Enterprise Server 11 SP2 for VMware	xen	Released
SUSE Linux Enterprise Server 11 SP3	xen	Released
SUSE Linux Enterprise Server 11 SP3 LTSS	xen	Released
SUSE Linux Enterprise Server 11 SP4	xen	Released
SUSE Linux Enterprise Server 12	xen	Released
SUSE Linux Enterprise Software Development Kit 11 SP2	xen	Released
SUSE Linux Enterprise Software Development Kit 11 SP3	xen	Released
SUSE Linux Enterprise Software Development Kit 11 SP4	xen	Released
SUSE Linux Enterprise Software Development Kit 12	xen	Released