Security update for xen

SUSE Security Update: Security update for xen
Announcement ID: SUSE-SU-2021:1023-1
Rating: important
References: #1027519 #1177112 #1177204 #1178591 #1178736 #1179148 #1181254 #1181989 #1182846 #1183072
Cross-References:CVE-2020-28368 CVE-2021-20257 CVE-2021-28687 CVE-2021-3308
Affected Products:
  • SUSE Linux Enterprise Software Development Kit 12-SP5
  • SUSE Linux Enterprise Server 12-SP5

An update that solves four vulnerabilities and has 6 fixes is now available.


This update for xen fixes the following issues:

  • CVE-2021-3308: VUL-0: xen: IRQ vector leak on x86 (bsc#1181254, XSA-360)
  • CVE-2021-28687: VUL-0: xen: HVM soft-reset crashes toolstack (bsc#1183072, XSA-368)
  • CVE-2021-20257: VUL-0: xen: infinite loop issue in the e1000 NIC emulator (bsc#1182846)
  • CVE-2020-28368: VUL-0: xen: Intel RAPL sidechannel attack aka PLATYPUS attack aka (bsc#1178591, XSA-351)
  • L3: conring size for XEN HV's with huge memory to small. Inital Xen logs cut (bsc#1177204)
  • Kdump of HVM fails, soft-reset not handled by libxl (bsc#1179148)
  • OpenQA job causes libvirtd to dump core when running kdump inside domain (bsc#1181989)
  • Allow restart of xenwatchdogd, enable tuning of keep-alive interval and timeout options via XENWATCHDOGD_ARGS= (bsc#1178736)
  • The receiving side did detect holes in a to-be-allocated superpage, but allocated a superpage anyway. This resulted to over-allocation (bsc#1177112)
  • The receiving side may punch holes incorrectly into optimistically allocated superpages. Also reduce overhead in bitmap handling (bsc#1177112)
  • Upstream bug fixes (bsc#1027519)

Patch Instructions:

To install this SUSE Security 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 Software Development Kit 12-SP5:
    zypper in -t patch SUSE-SLE-SDK-12-SP5-2021-1023=1
  • SUSE Linux Enterprise Server 12-SP5:
    zypper in -t patch SUSE-SLE-SERVER-12-SP5-2021-1023=1

Package List:

  • SUSE Linux Enterprise Software Development Kit 12-SP5 (aarch64 x86_64):
    • xen-debugsource-4.12.4_09-3.39.3
    • xen-devel-4.12.4_09-3.39.3
  • SUSE Linux Enterprise Server 12-SP5 (x86_64):
    • xen-4.12.4_09-3.39.3
    • xen-debugsource-4.12.4_09-3.39.3
    • xen-doc-html-4.12.4_09-3.39.3
    • xen-libs-32bit-4.12.4_09-3.39.3
    • xen-libs-4.12.4_09-3.39.3
    • xen-libs-debuginfo-32bit-4.12.4_09-3.39.3
    • xen-libs-debuginfo-4.12.4_09-3.39.3
    • xen-tools-4.12.4_09-3.39.3
    • xen-tools-debuginfo-4.12.4_09-3.39.3
    • xen-tools-domU-4.12.4_09-3.39.3
    • xen-tools-domU-debuginfo-4.12.4_09-3.39.3