This update for xen to version 4.12.3 fixes the following issues :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1172205).

Added support for new 64bit libxl memory API (bsc#1167007 and bsc#1157490).

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Oracle Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the ELSA-2020-2432 advisory.

    - Update Intel CPU microcode to microcode-20200602 release, addresses       CVE-2020-0543, CVE-2020-0548, CVE-2020-0549 (#1827189):
      - Update of 06-2d-06/0x6d (SNB-E/EN/EP C1/M0) microcode from revision 0x61f         up to 0x621;
      - Update of 06-2d-07/0x6d (SNB-E/EN/EP C2/M1) microcode from revision 0x718         up to 0x71a;
      - Update of 06-3c-03/0x32 (HSW C0) microcode from revision 0x27 up to 0x28;
      - Update of 06-3d-04/0xc0 (BDW-U/Y E0/F0) microcode from revision 0x2e         up to 0x2f;
      - Update of 06-45-01/0x72 (HSW-U C0/D0) microcode from revision 0x25         up to 0x26;
      - Update of 06-46-01/0x32 (HSW-H C0) microcode from revision 0x1b up to 0x1c;
      - Update of 06-47-01/0x22 (BDW-H/Xeon E3 E0/G0) microcode from revision 0x21         up to 0x22;
      - Update of 06-4e-03/0xc0 (SKL-U/Y D0) microcode from revision 0xd6         up to 0xdc;
      - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000151         up to 0x1000157;
      - Update of 06-55-04/0xb7 (SKX-SP H0/M0/U0, SKX-D M1) microcode         (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2000065         up to 0x2006906;
      - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x400002c         up to 0x4002f01;
      - Update of 06-55-07/0xbf (CLX-SP B1) microcode from revision 0x500002c         up to 0x5002f01;
      - Update of 06-5e-03/0x36 (SKL-H/S R0/N0) microcode from revision 0xd6         up to 0xdc;
      - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46         up to 0x78;
      - Update of 06-8e-09/0x10 (AML-Y22 H0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-09/0xc0 (KBL-U/Y H0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-0a/0xc0 (CFL-U43e D0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-0c/0x94 (AML-Y42 V0, CML-Y42 V0, WHL-U V0) microcode         from revision 0xca up to 0xd6;
      - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode from revision         0xca up to 0xd6;
      - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E3 U0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-9e-0b/0x02 (CFL-S B0) microcode from revision 0xca up to 0xd6;
      - Update of 06-9e-0c/0x22 (CFL-H/S P0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-9e-0d/0x22 (CFL-H R0) microcode from revision 0xca up to 0xd6.

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:2757 advisory.

    Security Fix(es):

    * hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)

    * hw: L1D Cache Eviction Sampling (CVE-2020-0549)

    * hw: Vector Register Data Sampling (CVE-2020-0548)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE page(s)     listed in the References section.

    Bug Fixes:

    * Update Intel CPU microcode to microcode-20200609 release:
      - Addition of 06-4d-08/0x01 (AVN B0/C0) microcode at revision 0x12d;
      - Addition of 06-55-06/0xbf (CLX-SP B0) microcode at revision 0x4002f01;
      - Addition of 06-7a-08/0x01 (GLK R0) microcode at revision 0x16;
      - Update of 06-2d-06/0x6d (SNB-E/EN/EP C1/M0) microcode from revision 0x61f         up to 0x621;
      - Update of 06-2d-07/0x6d (SNB-E/EN/EP C2/M1) microcode         (in intel-06-2d-07/intel-ucode/06-2d-07) from revision 0x718 up to 0x71a;
      - Update of 06-3c-03/0x32 (HSW C0) microcode from revision 0x27 up to 0x28;
      - Update of 06-3d-04/0xc0 (BDW-U/Y E0/F0) microcode from revision 0x2e         up to 0x2f;
      - Update of 06-45-01/0x72 (HSW-U C0/D0) microcode from revision 0x25         up to 0x26;
      - Update of 06-46-01/0x32 (HSW-H C0) microcode from revision 0x1b up to 0x1c;
      - Update of 06-47-01/0x22 (BDW-H/Xeon E3 E0/G0) microcode from revision 0x21         up to 0x22;
      - Update of 06-4e-03/0xc0 (SKL-U/Y D0) microcode from revision 0xd4         up to 0xdc;
      - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000150         up to 0x1000157;
      - Update of 06-55-04/0xb7 (SKX-SP H0/M0/U0, SKX-D M1) microcode         (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2000064         up to 0x2006906;
      - Update of 06-55-07/0xbf (CLX-SP B1) microcode from revision 0x500002b         up to 0x5002f01;
      - Update of 06-5e-03/0x36 (SKL-H/S R0/N0) microcode from revision 0xd4         up to 0xdc;
      - Update of 06-7a-01/0x01 (GLK B0) microcode from revision 0x2e up to 0x32;
      - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46         up to 0x78;
      - Update of 06-8e-09/0x10 (AML-Y22 H0) microcode from revision 0xc6         up to 0xd6;
      - Update of 06-8e-09/0xc0 (KBL-U/Y H0) microcode from revision 0xc6         up to 0xd6;
      - Update of 06-8e-0a/0xc0 (CFL-U43e D0) microcode from revision 0xc6         up to 0xd6;
      - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode from revision 0xc6         up to 0xd6;
      - Update of 06-8e-0c/0x94 (AML-Y42 V0, CML-Y42 V0, WHL-U V0) microcode         from revision 0xc6 up to 0xd6;
      - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode from revision         0xc6 up to 0xd6;
      - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E3 U0) microcode from revision 0xc6         up to 0xd6;
      - Update of 06-9e-0b/0x02 (CFL-S B0) microcode from revision 0xc6 up to 0xd6;
      - Update of 06-9e-0c/0x22 (CFL-H/S P0) microcode from revision 0xae         up to 0xd6;
      - Update of 06-9e-0d/0x22 (CFL-H R0) microcode from revision 0xc6 up to 0xd6.
      - Update of 06-a6-00/0x80 (CML-U 6+2 A0) from revision 0xc6 up to 0xca.
    * Do not update 06-4e-03 (SKL-U/Y) and 06-5e-03 (SKL-H/S/Xeon E3 v5) to revision       0xdc, use 0xd6 by default.
    * Enable 06-2d-07 (SNB-E/EN/EP) caveat by default.
    * Add 06-55-04 (SKL-X/W) caveat, enable it by default.
    * Update stale posttrans dependency, add triggers for proper handling       of the debug kernel flavour along with kernel-rt.
    * Avoid find being SIGPIPE'd on early grep -q exit in the dracut script.
    * Re-generate initramfs not only for the currently running kernel,       but for several recently installed kernels as well.
    * Change the URL to point to the GitHub repository since the microcode download       section at Intel Download Center does not exist anymore.
    * Avoid temporary file creation, used for here-documents in check_caveats.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:2758 advisory.

    Security Fix(es):

    * hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)

    * hw: L1D Cache Eviction Sampling (CVE-2020-0549)

    * hw: Vector Register Data Sampling (CVE-2020-0548)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE page(s)     listed in the References section.

    Bug Fix(es):

    * Update Intel CPU microcode to microcode-20200609 release:
      - Update of 06-2d-06/0x6d (SNB-E/EN/EP C1/M0) microcode from revision 0x61f         up to 0x621;
      - Update of 06-2d-07/0x6d (SNB-E/EN/EP C2/M1) microcode from revision 0x718         up to 0x71a;
      - Update of 06-3c-03/0x32 (HSW C0) microcode from revision 0x27 up to 0x28;
      - Update of 06-3d-04/0xc0 (BDW-U/Y E0/F0) microcode from revision 0x2e         up to 0x2f;
      - Update of 06-45-01/0x72 (HSW-U C0/D0) microcode from revision 0x25         up to 0x26;
      - Update of 06-46-01/0x32 (HSW-H C0) microcode from revision 0x1b up to 0x1c;
      - Update of 06-47-01/0x22 (BDW-H/Xeon E3 E0/G0) microcode from revision 0x21         up to 0x22;
      - Update of 06-4e-03/0xc0 (SKL-U/Y D0) microcode from revision 0xd6         up to 0xdc;
      - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000151         up to 0x1000157;
      - Update of 06-55-04/0xb7 (SKX-SP H0/M0/U0, SKX-D M1) microcode         (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2000065         up to 0x2006906;
      - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x400002c         up to 0x4002f01;
      - Update of 06-55-07/0xbf (CLX-SP B1) microcode from revision 0x500002c         up to 0x5002f01;
      - Update of 06-5e-03/0x36 (SKL-H/S R0/N0) microcode from revision 0xd6         up to 0xdc;
      - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46         up to 0x78;
      - Update of 06-8e-09/0x10 (AML-Y22 H0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-09/0xc0 (KBL-U/Y H0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-0a/0xc0 (CFL-U43e D0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-0c/0x94 (AML-Y42 V0, CML-Y42 V0, WHL-U V0) microcode         from revision 0xca up to 0xd6;
      - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode from revision         0xca up to 0xd6;
      - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E3 U0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-9e-0b/0x02 (CFL-S B0) microcode from revision 0xca up to 0xd6;
      - Update of 06-9e-0c/0x22 (CFL-H/S P0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-9e-0d/0x22 (CFL-H R0) microcode from revision 0xca up to 0xd6.
    * Do not update 06-4e-03 (SKL-U/Y) and 06-5e-03 (SKL-H/S/Xeon E3 v5) to revision       0xdc, use 0xd6 by default.
    * Enable 06-2d-07 (SNB-E/EN/EP) caveat by default.
    * Enable 06-55-04 (SKL-SP/X/W) caveat by default.
    * Avoid find being SIGPIPE'd on early grep -q exit in the dracut script.
    * Re-generate initramfs not only for the currently running kernel,       but for several recently installed kernels as well.
    * Change the URL in the intel-microcode2ucode.8 to point to the GitHub       repository since the microcode download section at Intel Download Center       does not exist anymore.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Redhat Enterprise Linux 7 host has a package installed that is affected by multiple vulnerabilities as referenced in the RHSA-2020:2771 advisory.

    Security Fix(es):

    * hw: Special Register Buffer Data Sampling (SRBDS) (CVE-2020-0543)

    * hw: L1D Cache Eviction Sampling (CVE-2020-0549)

    * hw: Vector Register Data Sampling (CVE-2020-0548)

    For more details about the security issue(s), including the impact, a CVSS     score, acknowledgments, and other related information, refer to the CVE page(s)     listed in the References section.

    Bug Fix(es):

    * Update Intel CPU microcode to microcode-20200609 release:
      - Update of 06-2d-06/0x6d (SNB-E/EN/EP C1/M0) microcode from revision 0x61f         up to 0x621;
      - Update of 06-2d-07/0x6d (SNB-E/EN/EP C2/M1) microcode from revision 0x718         up to 0x71a;
      - Update of 06-3c-03/0x32 (HSW C0) microcode from revision 0x27 up to 0x28;
      - Update of 06-3d-04/0xc0 (BDW-U/Y E0/F0) microcode from revision 0x2e         up to 0x2f;
      - Update of 06-45-01/0x72 (HSW-U C0/D0) microcode from revision 0x25         up to 0x26;
      - Update of 06-46-01/0x32 (HSW-H C0) microcode from revision 0x1b up to 0x1c;
      - Update of 06-47-01/0x22 (BDW-H/Xeon E3 E0/G0) microcode from revision 0x21         up to 0x22;
      - Update of 06-4e-03/0xc0 (SKL-U/Y D0) microcode from revision 0xd6         up to 0xdc;
      - Update of 06-55-03/0x97 (SKX-SP B1) microcode from revision 0x1000151         up to 0x1000157;
      - Update of 06-55-04/0xb7 (SKX-SP H0/M0/U0, SKX-D M1) microcode         (in intel-06-55-04/intel-ucode/06-55-04) from revision 0x2000065         up to 0x2006906;
      - Update of 06-55-06/0xbf (CLX-SP B0) microcode from revision 0x400002c         up to 0x4002f01;
      - Update of 06-55-07/0xbf (CLX-SP B1) microcode from revision 0x500002c         up to 0x5002f01;
      - Update of 06-5e-03/0x36 (SKL-H/S R0/N0) microcode from revision 0xd6         up to 0xdc;
      - Update of 06-7e-05/0x80 (ICL-U/Y D1) microcode from revision 0x46         up to 0x78;
      - Update of 06-8e-09/0x10 (AML-Y22 H0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-09/0xc0 (KBL-U/Y H0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-0a/0xc0 (CFL-U43e D0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-0b/0xd0 (WHL-U W0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-8e-0c/0x94 (AML-Y42 V0, CML-Y42 V0, WHL-U V0) microcode         from revision 0xca up to 0xd6;
      - Update of 06-9e-09/0x2a (KBL-G/H/S/X/Xeon E3 B0) microcode from revision         0xca up to 0xd6;
      - Update of 06-9e-0a/0x22 (CFL-H/S/Xeon E3 U0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-9e-0b/0x02 (CFL-S B0) microcode from revision 0xca up to 0xd6;
      - Update of 06-9e-0c/0x22 (CFL-H/S P0) microcode from revision 0xca         up to 0xd6;
      - Update of 06-9e-0d/0x22 (CFL-H R0) microcode from revision 0xca up to 0xd6.
    * Do not update 06-4e-03 (SKL-U/Y) and 06-5e-03 (SKL-H/S/Xeon E3 v5) to revision       0xdc, use 0xd6 by default.
    * Enable 06-2d-07 (SNB-E/EN/EP) caveat by default.
    * Enable 06-55-04 (SKL-SP/X/W) caveat by default.
    * Avoid find being SIGPIPE'd on early grep -q exit in the dracut script.
    * Re-generate initramfs not only for the currently running kernel,       but for several recently installed kernels as well.
    * Change the URL in the intel-microcode2ucode.8 to point to the GitHub       repository since the microcode download section at Intel Download Center       does not exist anymore.

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The version of microcode_ctl installed on the remote host is prior to 2.1-47.39. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS-2020-1396 advisory.

    A new domain bypass transient execution attack known as Special Register Buffer Data Sampling (SRBDS) has     been found. This flaw allows data values from special internal registers to be leaked by an attacker able     to execute code on any core of the CPU. An unprivileged, local attacker can use this flaw to infer values     returned by affected instructions known to be commonly used during cryptographic operations that rely on     uniqueness, secrecy, or both. Incomplete cleanup from specific special register read operations in some     Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local     access. (CVE-2020-0543)

    Cleanup errors in some Intel(R) Processors may allow an authenticated user to potentially enable     information disclosure via local access. (CVE-2020-0548)

    Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user     to potentially enable information disclosure via local access. (CVE-2020-0549)

Tenable has extracted the preceding description block directly from the tested product security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES11 host has a package installed that is affected by multiple vulnerabilities as referenced in the SUSE-SU-2020:14394-1 advisory.

  - Incomplete cleanup from specific special register read operations in some Intel(R) Processors may allow an     authenticated user to potentially enable information disclosure via local access. (CVE-2020-0543)

  - Cleanup errors in some Intel(R) Processors may allow an authenticated user to potentially enable     information disclosure via local access. (CVE-2020-0548)

  - Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user     to potentially enable information disclosure via local access. (CVE-2020-0549)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

According to its self-reported version number, the Xen hypervisor installed on the remote host is affected by an issue.
Incomplete cleanup from specific special register read operations in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access. An attacker, which could include a malicious untrusted user process on a trusted guest, or an untrusted guest, can sample the contents of certain off-core accesses by other cores in the system. Only x86 processors are vulnerable. ARM processors are not believed to be vulnerable.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version   number.

The SUSE Linux Enterprise 15 SP1 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12768: Fixed a memory leak in svm_cpu_uninit in arch/x86/kvm/svm.c (bsc#1171736).

CVE-2020-12659: Fixed an out-of-bounds write (by a user with the CAP_NET_ADMIN capability) due to improper headroom validation (bsc#1171214).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895)

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The SUSE Linux Enterprise 12 SP4 kernel was updated to receive various security and bugfixes.

The following security bugs were fixed :

CVE-2020-0543: Fixed a side channel attack against special registers which could have resulted in leaking of read values to cores other than the one which called it. This attack is known as Special Register Buffer Data Sampling (SRBDS) or 'CrossTalk' (bsc#1154824).

CVE-2020-13143: Fixed an out-of-bounds read in gadget_dev_desc_UDC_store in drivers/usb/gadget/configfs.c (bsc#1171982).

CVE-2020-12769: Fixed an issue which could have allowed attackers to cause a panic via concurrent calls to dw_spi_irq and dw_spi_transfer_one (bsc#1171983).

CVE-2020-12768: Fixed a memory leak in svm_cpu_uninit in arch/x86/kvm/svm.c (bsc#1171736).

CVE-2020-12657: An a use-after-free in block/bfq-iosched.c (bsc#1171205).

CVE-2020-12656: Fixed an improper handling of certain domain_release calls leadingch could have led to a memory leak (bsc#1171219).

CVE-2020-12655: Fixed an issue which could have allowed attackers to trigger a sync of excessive duration via an XFS v5 image with crafted metadata (bsc#1171217).

CVE-2020-12654: Fixed an issue in he wifi driver which could have allowed a remote AP to trigger a heap-based buffer overflow (bsc#1171202).

CVE-2020-12653: Fixed an issue in the wifi driver which could have allowed local users to gain privileges or cause a denial of service (bsc#1171195).

CVE-2020-12652: Fixed an issue which could have allowed local users to hold an incorrect lock during the ioctl operation and trigger a race condition (bsc#1171218).

CVE-2020-12464: Fixed a use-after-free due to a transfer without a reference (bsc#1170901).

CVE-2020-12114: Fixed a pivot_root race condition which could have allowed local users to cause a denial of service (panic) by corrupting a mountpoint reference counter (bsc#1171098).

CVE-2020-10757: Fixed an issue where remaping hugepage DAX to anon mmap could have caused user PTE access (bsc#1172317).

CVE-2020-10751: Fixed an improper implementation in SELinux LSM hook where it was assumed that an skb would only contain a single netlink message (bsc#1171189).

CVE-2020-10732: Fixed kernel data leak in userspace coredumps due to uninitialized data (bsc#1171220).

CVE-2020-10720: Fixed a use-after-free read in napi_gro_frags() (bsc#1170778).

CVE-2020-10711: Fixed a NULL pointer dereference in SELinux subsystem which could have allowed a remote network user to crash the kernel resulting in a denial of service (bsc#1171191).

CVE-2020-10690: Fixed the race between the release of ptp_clock and cdev (bsc#1170056).

CVE-2019-9455: Fixed a pointer leak due to a WARN_ON statement in a video driver. This could lead to local information disclosure with System execution privileges needed (bsc#1170345).

CVE-2019-20812: Fixed an issue in prb_calc_retire_blk_tmo() which could have resulted in a denial of service (bsc#1172453).

CVE-2019-20806: Fixed a NULL pointer dereference which may had lead to denial of service (bsc#1172199).

CVE-2019-19462: Fixed an issue which could have allowed local user to cause denial of service (bsc#1158265).

CVE-2018-1000199: Fixed a potential local code execution via ptrace (bsc#1089895).

The update package also includes non-security fixes. See advisory for details.

Note that Tenable Network Security has extracted the preceding description block directly from the SUSE security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

According to the versions of the kernel packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities :

  - mwifiex_cmd_802_11_ad_hoc_start in     drivers/net/wireless/marvell/mwifiex/join.c in the     Linux kernel through 5.10.4 might allow remote     attackers to execute arbitrary code via a long SSID     value, aka CID-5c455c5ab332.(CVE-2020-36158)

  - Incomplete cleanup from specific special register read     operations in some Intel(R) Processors may allow an     authenticated user to potentially enable information     disclosure via local access.(CVE-2020-0543)

  - An infinite loop issue was found in the vhost_net     kernel module in Linux Kernel up to and including     v5.1-rc6, while handling incoming packets in     handle_rx(). It could occur if one end sends packets     faster than the other end can process them. A guest     user, maybe remote one, could use this flaw to stall     the vhost_net kernel thread, resulting in a DoS     scenario.(CVE-2019-3900)

  - In pppol2tp_connect, there is possible memory     corruption due to a use after free. This could lead to     local escalation of privilege with System execution     privileges needed. User interaction is not needed for     exploitation. Product: Android. Versions: Android     kernel. Android ID: A-38159931.(CVE-2018-9517)

  - A flaw was found in the fix for CVE-2019-11135, in the     Linux upstream kernel versions before 5.5 where, the     way Intel CPUs handle speculative execution of     instructions when a TSX Asynchronous Abort (TAA) error     occurs. When a guest is running on a host CPU affected     by the TAA flaw (TAA_NO=0), but is not affected by the     MDS issue (MDS_NO=1), the guest was to clear the     affected buffers by using a VERW instruction mechanism.
    But when the MDS_NO=1 bit was exported to the guests,     the guests did not use the VERW mechanism to clear the     affected buffers. This issue affects guests running on     Cascade Lake CPUs and requires that host has 'TSX'     enabled. Confidentiality of data is the highest threat     associated with this vulnerability.(CVE-2019-19338)

  - There is a use-after-free in kernel versions before 5.5     due to a race condition between the release of     ptp_clock and cdev while resource deallocation. When a     (high privileged) process allocates a ptp device file     (like /dev/ptpX) and voluntarily goes to sleep. During     this time if the underlying device is removed, it can     cause an exploitable condition as the process wakes up     to terminate and clean all attached files. The system     crashes due to the cdev structure being invalid (as     already freed) which is pointed to by the     inode.(CVE-2020-10690)

  - Improper input validation in BlueZ may allow an     unauthenticated user to potentially enable escalation     of privilege via adjacent access.(CVE-2020-12351)

  - A flaw was found in the Linux kernels implementation of     MIDI, where an attacker with a local account and the     permissions to issue an ioctl commands to midi devices,     could trigger a use-after-free. A write to this     specific memory while freed and before use could cause     the flow of execution to change and possibly allow for     memory corruption or privilege     escalation.(CVE-2020-27786)

  - use-after-free read in sunkbd_reinit in     drivers/input/keyboard/sunkbd.c(CVE-2020-25669)

  - A flaw was found in the way RTAS handled memory     accesses in userspace to kernel communication. On a     locked down (usually due to Secure Boot) guest system     running on top of PowerVM or KVM hypervisors (pseries     platform) a root like local user could use this flaw to     further increase their privileges to that of a running     kernel.(CVE-2020-27777)

  - A locking inconsistency issue was discovered in the tty     subsystem of the Linux kernel through 5.9.13.
    drivers/tty/tty_io.c and drivers/tty/tty_jobctrl.c may     allow a read-after-free attack against TIOCGSID, aka     CID-c8bcd9c5be24.(CVE-2020-29660)

  - A locking issue was discovered in the tty subsystem of     the Linux kernel through 5.9.13.
    drivers/tty/tty_jobctrl.c allows a use-after-free     attack against TIOCSPGRP, aka     CID-54ffccbf053b.(CVE-2020-29661)

  - An out-of-bounds memory write flaw was found in how the     Linux kernel's Voice Over IP H.323 connection tracking     functionality handled connections on ipv6 port 1720.
    This flaw allows an unauthenticated remote user to     crash the system, causing a denial of service. The     highest threat from this vulnerability is to     confidentiality, integrity, as well as system     availability.(CVE-2020-14305)

  - An issue was discovered in the Linux kernel before     5.2.6. On NUMA systems, the Linux fair scheduler has a     use-after-free in show_numa_stats() because NUMA fault     statistics are inappropriately freed, aka     CID-16d51a590a8c.(CVE-2019-20934)

  - IBM Power9 (AIX 7.1, 7.2, and VIOS 3.1) processors     could allow a local user to obtain sensitive     information from the data in the L1 cache under     extenuating circumstances. IBM X-Force ID:
    189296.(CVE-2020-4788)

  - A flaw memory leak in the Linux kernel performance     monitoring subsystem was found in the way if using     PERF_EVENT_IOC_SET_FILTER. A local user could use this     flaw to starve the resources causing denial of     service.(CVE-2020-25704)

  - An issue was discovered in kmem_cache_alloc_bulk in     mm/slub.c in the Linux kernel before 5.5.11. The     slowpath lacks the required TID increment, aka     CID-fd4d9c7d0c71.(CVE-2020-29370)

  - A slab-out-of-bounds read in fbcon in the Linux kernel     before 5.9.7 could be used by local attackers to read     privileged information or potentially crash the kernel,     aka CID-3c4e0dff2095. This occurs because     KD_FONT_OP_COPY in drivers/tty/vt/vt.c can be used for     manipulations such as font height.(CVE-2020-28974)

  - A buffer over-read (at the framebuffer layer) in the     fbcon code in the Linux kernel before 5.8.15 could be     used by local attackers to read kernel memory, aka     CID-6735b4632def.(CVE-2020-28915)

  - An issue was discovered in romfs_dev_read in     fs/romfs/storage.c in the Linux kernel before 5.8.4.
    Uninitialized memory leaks to userspace, aka     CID-bcf85fcedfdd.(CVE-2020-29371)

  - Use-after-free vulnerability in fs/block_dev.c in the     Linux kernel before 5.8 allows local users to gain     privileges or cause a denial of service by leveraging     improper access to a certain error     field.(CVE-2020-15436)

  - The Linux kernel before version 5.8 is vulnerable to a     NULL pointer dereference in     drivers/tty/serial/8250/8250_core.c:serial8250_isa_init
    _ports() that allows local users to cause a denial of     service by using the p->serial_in pointer which     uninitialized.(CVE-2020-15437)

Note that Tenable Network Security has extracted the preceding description block directly from the EulerOS security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.

The remote Rocky Linux 8 host has a package installed that is affected by multiple vulnerabilities as referenced in the RLSA-2021:3027 advisory.

  - Incomplete cleanup from specific special register read operations in some Intel(R) Processors may allow an     authenticated user to potentially enable information disclosure via local access. (CVE-2020-0543)

  - Cleanup errors in some Intel(R) Processors may allow an authenticated user to potentially enable     information disclosure via local access. (CVE-2020-0548)

  - Cleanup errors in some data cache evictions for some Intel(R) Processors may allow an authenticated user     to potentially enable information disclosure via local access. (CVE-2020-0549)

  - Incomplete cleanup in some Intel(R) VT-d products may allow an authenticated user to potentially enable     escalation of privilege via local access. (CVE-2020-24489)

  - Improper isolation of shared resources in some Intel(R) Processors may allow an authenticated user to     potentially enable information disclosure via local access. (CVE-2020-24511, CVE-2020-8698)

  - Observable timing discrepancy in some Intel(R) Processors may allow an authenticated user to potentially     enable information disclosure via local access. (CVE-2020-24512)

  - Observable discrepancy in the RAPL interface for some Intel(R) Processors may allow a privileged user to     potentially enable information disclosure via local access. (CVE-2020-8695)

  - Improper removal of sensitive information before storage or transfer in some Intel(R) Processors may allow     an authenticated user to potentially enable information disclosure via local access. (CVE-2020-8696)

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

ID	Name	Product	Family	Published	Updated	Severity
137620	SUSE SLED15 / SLES15 Security Update : xen (SUSE-SU-2020:1609-1)	Nessus	SuSE Local Security Checks	6/18/2020	1/13/2021	medium
137694	Oracle Linux 7 : microcode_ctl (ELSA-2020-2432)	Nessus	Oracle Linux Local Security Checks	6/22/2020	10/23/2024	medium
137882	RHEL 8 : microcode_ctl (RHSA-2020:2757)	Nessus	Red Hat Local Security Checks	6/29/2020	11/7/2024	medium
137883	RHEL 7 : microcode_ctl (RHSA-2020:2758)	Nessus	Red Hat Local Security Checks	6/29/2020	11/7/2024	medium
138217	RHEL 7 : microcode_ctl (RHSA-2020:2771)	Nessus	Red Hat Local Security Checks	7/8/2020	11/7/2024	medium
138638	Amazon Linux AMI : microcode_ctl (ALAS-2020-1396)	Nessus	Amazon Linux Local Security Checks	7/20/2020	12/11/2024	medium
150544	SUSE SLES11 Security Update : microcode_ctl (SUSE-SU-2020:14394-1)	Nessus	SuSE Local Security Checks	6/10/2021	6/10/2021	medium
149085	Xen Speculative Side Channel Information Disclosure (XSA-320)	Nessus	Misc.	4/29/2021	4/30/2021	medium
137613	SUSE SLED15 / SLES15 Security Update : kernel (SUSE-SU-2020:1599-1)	Nessus	SuSE Local Security Checks	6/18/2020	3/6/2024	high
137617	SUSE SLES12 Security Update : kernel (SUSE-SU-2020:1605-1)	Nessus	SuSE Local Security Checks	6/18/2020	3/6/2024	high
148041	EulerOS 2.0 SP5 : kernel (EulerOS-SA-2021-1684)	Nessus	Huawei Local Security Checks	3/24/2021	12/5/2022	high
184626	Rocky Linux 8 : microcode_ctl (RLSA-2021:3027)	Nessus	Rocky Linux Local Security Checks	11/6/2023	11/6/2023	high

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