Security update for xen

Announcement ID:	SUSE-SU-2020:14521-1
Rating:	important
References:	bsc#1172205 bsc#1173378 bsc#1173380 bsc#1175534 bsc#1176343 bsc#1176344 bsc#1176345 bsc#1176346 bsc#1176347 bsc#1176348 bsc#1176350
Cross-References:	CVE-2020-0543 CVE-2020-14364 CVE-2020-15565 CVE-2020-15567 CVE-2020-25595 CVE-2020-25596 CVE-2020-25597 CVE-2020-25600 CVE-2020-25601 CVE-2020-25603 CVE-2020-25604
CVSS scores:	CVE-2020-0543 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N CVE-2020-0543 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N CVE-2020-14364 ( SUSE ): 5.0 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L CVE-2020-14364 ( NVD ): 5.0 CVSS:3.1/AV:L/AC:H/PR:H/UI:N/S:C/C:L/I:L/A:L CVE-2020-15565 ( SUSE ): 7.9 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:H CVE-2020-15565 ( NVD ): 8.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-15567 ( SUSE ): 6.4 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:N/I:L/A:H CVE-2020-15567 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-25595 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-25595 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-25596 ( SUSE ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-25596 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-25597 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-25597 ( NVD ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-25600 ( SUSE ): 7.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CVE-2020-25600 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-25601 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-25601 ( NVD ): 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CVE-2020-25603 ( SUSE ): 7.8 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H CVE-2020-25603 ( NVD ): 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVE-2020-25604 ( SUSE ): 6.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H CVE-2020-25604 ( NVD ): 4.7 CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected Products:	SUSE Linux Enterprise Server 11 SP4 SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4

An update that solves 11 vulnerabilities can now be installed.

Description:

This update for xen fixes the following issues:

• CVE-2020-0543: Fixed a leak of Special Register Buffer Data Sampling (SRBDS) aka "CrossTalk" (bsc#1172205,XSA-320)
• CVE-2020-14364: Fixed an out-of-bounds read/write access while processing usb packets (bsc#1175534).
• CVE-2020-15565: Fixed an issue cache write (bsc#1173378,XSA-321).
• CVE-2020-15567: Fixed an issue with non-atomic modification of live EPT PTE (bsc#1173380,XSA-328)
• CVE-2020-25595: Fixed an issue where PCI passthrough code was reading back hardware registers (bsc#1176344,XSA-337)
• CVE-2020-25596: Fixed a potential denial of service in x86 pv guest kernel via SYSENTER (bsc#1176345,XSA-339)
• CVE-2020-25597: Fixed an issue where a valid event channels may not turn invalid (bsc#1176346,XSA-338)
• CVE-2020-25600: Fixed out of bounds event channels available to 32-bit x86 domains (bsc#1176348,XSA-342)
• CVE-2020-25601: Fixed an issue due to lack of preemption in evtchn_reset() / evtchn_destroy() (bsc#1176350,XSA-344)
• CVE-2020-25603: Fixed an issue due to missing barriers when accessing/allocating an event channel (bsc#1176347,XSA-340)
• CVE-2020-25604: Fixed a race condition when migrating timers between x86 HVM vCPU-s (bsc#1176343,XSA-336)

Patch Instructions:

To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Alternatively you can run the command listed for your product:

• SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4
  zypper in -t patch slessp4-xen-14521=1
• SUSE Linux Enterprise Server 11 SP4
  zypper in -t patch slessp4-xen-14521=1

Package List:

• SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (x86_64 i586)
  • xen-tools-domU-4.4.4_44-61.55.1
  • xen-libs-4.4.4_44-61.55.1
  • xen-kmp-default-4.4.4_44_3.0.101_108.117-61.55.1
• SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (i586)
  • xen-kmp-pae-4.4.4_44_3.0.101_108.117-61.55.1
• SUSE Linux Enterprise Server 11 SP4 LTSS 11-SP4 (x86_64)
  • xen-doc-html-4.4.4_44-61.55.1
  • xen-libs-32bit-4.4.4_44-61.55.1
  • xen-tools-4.4.4_44-61.55.1
  • xen-4.4.4_44-61.55.1
• SUSE Linux Enterprise Server 11 SP4 (x86_64 i586)
  • xen-tools-domU-4.4.4_44-61.55.1
  • xen-libs-4.4.4_44-61.55.1
  • xen-kmp-default-4.4.4_44_3.0.101_108.117-61.55.1
• SUSE Linux Enterprise Server 11 SP4 (i586)
  • xen-kmp-pae-4.4.4_44_3.0.101_108.117-61.55.1
• SUSE Linux Enterprise Server 11 SP4 (x86_64)
  • xen-doc-html-4.4.4_44-61.55.1
  • xen-libs-32bit-4.4.4_44-61.55.1
  • xen-tools-4.4.4_44-61.55.1
  • xen-4.4.4_44-61.55.1

References:

• https://www.suse.com/security/cve/CVE-2020-0543.html
• https://www.suse.com/security/cve/CVE-2020-14364.html
• https://www.suse.com/security/cve/CVE-2020-15565.html
• https://www.suse.com/security/cve/CVE-2020-15567.html
• https://www.suse.com/security/cve/CVE-2020-25595.html
• https://www.suse.com/security/cve/CVE-2020-25596.html
• https://www.suse.com/security/cve/CVE-2020-25597.html
• https://www.suse.com/security/cve/CVE-2020-25600.html
• https://www.suse.com/security/cve/CVE-2020-25601.html
• https://www.suse.com/security/cve/CVE-2020-25603.html
• https://www.suse.com/security/cve/CVE-2020-25604.html
• https://bugzilla.suse.com/show_bug.cgi?id=1172205
• https://bugzilla.suse.com/show_bug.cgi?id=1173378
• https://bugzilla.suse.com/show_bug.cgi?id=1173380
• https://bugzilla.suse.com/show_bug.cgi?id=1175534
• https://bugzilla.suse.com/show_bug.cgi?id=1176343
• https://bugzilla.suse.com/show_bug.cgi?id=1176344
• https://bugzilla.suse.com/show_bug.cgi?id=1176345
• https://bugzilla.suse.com/show_bug.cgi?id=1176346
• https://bugzilla.suse.com/show_bug.cgi?id=1176347
• https://bugzilla.suse.com/show_bug.cgi?id=1176348
• https://bugzilla.suse.com/show_bug.cgi?id=1176350