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Test ID:
Category:SuSE Local Security Checks
Title:SUSE: Security Advisory (SUSE-SU-2019:14001-1)
Summary:The remote host is missing an update for the 'xen' package(s) announced via the SUSE-SU-2019:14001-1 advisory.
The remote host is missing an update for the 'xen' package(s) announced via the SUSE-SU-2019:14001-1 advisory.

Vulnerability Insight:
This update for xen fixes the following issues:

Security issues fixed:
Fixed multiple access violations introduced by XENMEM_exchange hypercall
which could allow a single PV guest to leak arbitrary amounts of memory,
leading to a denial of service (bsc#1126192).

Fixed an issue which could allow a malicious unprivileged guest
userspace process to escalate its privilege to that of other userspace
processes in the same guest and potentially thereby to that
of the guest operating system (bsc#1126201).

Fixed an issue which could allow an untrusted PV domain with access to a
physical device to DMA into its own pagetables leading to privilege
escalation (bsc#1126195).

Fixed an issue which could allow a malicious or buggy x86 PV guest
kernels can mount a Denial of Service attack affecting the whole system

CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() found in slirp

Fixed an issue which could allow malicious PV guests may cause a host
crash or gain access to data pertaining to other guests.Additionally,
vulnerable configurations are likely to be unstable even in the absence
of an attack (bsc#1126198).

Fixed an issue which could allow malicious 64bit PV guests to cause a
host crash (bsc#1127400).

Fixed an issue which could allow malicious or buggy guests with passed
through PCI devices to be able to escalate their privileges, crash the
host, or access data belonging to other guests. Additionally memory
leaks were also possible (bsc#1126140).

Fixed a race condition issue which could allow malicious PV guests to
escalate their privilege to that
of the hypervisor (bsc#1126141).

CVE-2019-9824: Fixed an information leak in SLiRP networking
implementation which could allow a user/process to read uninitialised
stack memory contents (bsc#1129623).

Other issues fixed:
Fixed an issue where VMs crashing when migrating between dom0 hosts

Upstream bug fixes (bsc#1027519)

Affected Software/OS:
'xen' package(s) on SUSE Linux Enterprise Software Development Kit 11-SP4, SUSE Linux Enterprise Server 11-SP4, SUSE Linux Enterprise Debuginfo 11-SP4

Please install the updated package(s).

CVSS Score:

CVSS Vector:

Cross-Ref: Common Vulnerability Exposure (CVE) ID: CVE-2019-6778
BugTraq ID: 106758
Bugtraq: 20190531 [SECURITY] [DSA 4454-1] qemu security update (Google Search)
Debian Security Information: DSA-4454 (Google Search)
[Qemu-devel][PULL 65/65] 20190114 slirp: check data length while emulating ident
[oss-security] 20190124 CVE-2019-6778 QEMU: slirp: heap buffer overflow in tcp_emu()
RedHat Security Advisories: RHSA-2019:1883
RedHat Security Advisories: RHSA-2019:1968
RedHat Security Advisories: RHSA-2019:2425
RedHat Security Advisories: RHSA-2019:2892
SuSE Security Announcement: SUSE-SA-2019:0254-1 (Google Search)
SuSE Security Announcement: openSUSE-SU-2019:1074 (Google Search)
SuSE Security Announcement: openSUSE-SU-2019:1226 (Google Search)
SuSE Security Announcement: openSUSE-SU-2019:2044 (Google Search)
SuSE Security Announcement: openSUSE-SU-2020:0468 (Google Search)
Common Vulnerability Exposure (CVE) ID: CVE-2019-9824
RedHat Security Advisories: RHSA-2019:1650
RedHat Security Advisories: RHSA-2019:2078
RedHat Security Advisories: RHSA-2019:2553
RedHat Security Advisories: RHSA-2019:3345
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