SUSE-SU-2019:0891-1

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Source
https://www.suse.com/support/update/announcement/2019/suse-su-20190891-1/
Import Source
https://ftp.suse.com/pub/projects/security/osv/SUSE-SU-2019:0891-1.json
JSON Data
https://api.osv.dev/v1/vulns/SUSE-SU-2019:0891-1
Related
Published
2019-04-05T11:32:00Z
Modified
2019-04-05T11:32:00Z
Summary
Security update for xen
Details

This update for xen fixes the following issues:

Security issues fixed:

  • 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 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 malicious or buggy x86 PV guest kernels to mount a Denial of Service attack affecting the whole system (bsc#1126197).
  • 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 (bsc#1126196).
  • CVE-2019-6778: Fixed a heap buffer overflow in tcp_emu() found in slirp (bsc#1123157).
  • 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 addressed:

  • Upstream bug fixes (bsc#1027519)
  • Packages should no longer use /var/adm/fillup-templates (bsc#1069468).
  • Added Xen cmdline option 'susevtsctolerance' to avoid TSC emulation for HVM domUs (bsc#1026236).
  • Fixed an issue where setup of grant_tables and other variables may fail (bsc#1126325).
  • Fixed a building issue (bsc#1119161).
  • Added a requirement for xen, xl.cfg firmware='pvgrub32|pvgrub64 (bsc#1127620).
  • Fixed a segmetation fault in Libvirt when crash triggered on top of HVM guest (bsc#1120067).
References

Affected packages

SUSE:Linux Enterprise Desktop 12 SP4 / xen

Package

Name
xen
Purl
purl:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Desktop%2012%20SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.11.1_04-2.6.1

Ecosystem specific 

{
    "binaries": [
        {
            "xen-libs": "4.11.1_04-2.6.1",
            "xen-libs-32bit": "4.11.1_04-2.6.1",
            "xen": "4.11.1_04-2.6.1"
        }
    ]
}

SUSE:Linux Enterprise Software Development Kit 12 SP4 / xen

Package

Name
xen
Purl
purl:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Software%20Development%20Kit%2012%20SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.11.1_04-2.6.1

Ecosystem specific 

{
    "binaries": [
        {
            "xen-devel": "4.11.1_04-2.6.1"
        }
    ]
}

SUSE:Linux Enterprise Server 12 SP4 / xen

Package

Name
xen
Purl
purl:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%2012%20SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.11.1_04-2.6.1

Ecosystem specific 

{
    "binaries": [
        {
            "xen-libs": "4.11.1_04-2.6.1",
            "xen-doc-html": "4.11.1_04-2.6.1",
            "xen-libs-32bit": "4.11.1_04-2.6.1",
            "xen-tools": "4.11.1_04-2.6.1",
            "xen-tools-domU": "4.11.1_04-2.6.1",
            "xen": "4.11.1_04-2.6.1"
        }
    ]
}

SUSE:Linux Enterprise Server for SAP Applications 12 SP4 / xen

Package

Name
xen
Purl
purl:rpm/suse/xen&distro=SUSE%20Linux%20Enterprise%20Server%20for%20SAP%20Applications%2012%20SP4

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected
Fixed
4.11.1_04-2.6.1

Ecosystem specific 

{
    "binaries": [
        {
            "xen-libs": "4.11.1_04-2.6.1",
            "xen-doc-html": "4.11.1_04-2.6.1",
            "xen-libs-32bit": "4.11.1_04-2.6.1",
            "xen-tools": "4.11.1_04-2.6.1",
            "xen-tools-domU": "4.11.1_04-2.6.1",
            "xen": "4.11.1_04-2.6.1"
        }
    ]
}