suse-su-2018:2364-1
Vulnerability from csaf_suse
Published
2018-08-16 06:06
Modified
2018-08-16 06:06
Summary
Security update for the Linux Kernel (Live Patch 28 for SLE 12 SP1)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 28 for SLE 12 SP1)
Description of the patch
This update for the Linux Kernel 3.12.74-60_64_93 fixes several issues. The following security issues were fixed: - CVE-2018-3646: Local attackers in virtualized guest systems could use speculative code patterns on hyperthreaded processors to read data present in the L1 Datacache used by other hyperthreads on the same CPU core, potentially leaking sensitive data, even from other virtual machines or the host system (bsc#1099306). - CVE-2018-10853: A flaw was found in kvm. In which certain instructions such as sgdt/sidt call segmented_write_std didn't propagate access correctly. As such, during userspace induced exception, the guest can incorrectly assume that the exception happened in the kernel and panic. (bsc#1097108).
Patchnames
SUSE-SLE-SAP-12-SP1-2018-1593,SUSE-SLE-SERVER-12-SP1-2018-1593
Terms of use
CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).


To clipboard 

{
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    "distribution": {
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        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
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  "vulnerabilities": [
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      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-10853"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A flaw was found in the way Linux kernel KVM hypervisor before 4.18 emulated instructions such as sgdt/sidt/fxsave/fxrstor. It did not check current privilege(CPL) level while emulating unprivileged instructions. An unprivileged guest user/process could use this flaw to potentially escalate privileges inside guest.",
          "title": "CVE description"
        }
      ],
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          "SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_93-xen-3-2.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-default-3-2.1.x86_64",
          "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-xen-3-2.1.x86_64"
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          "url": "https://bugzilla.suse.com/1097108"
        }
      ],
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        {
          "category": "vendor_fix",
          "details": "To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or \"zypper patch\".\n",
          "product_ids": [
            "SUSE Linux Enterprise Server 12 SP1-LTSS:kgraft-patch-3_12_74-60_64_93-default-3-2.1.x86_64",
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            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-default-3-2.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-xen-3-2.1.x86_64"
          ]
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      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.4,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
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            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-default-3-2.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-xen-3-2.1.x86_64"
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        {
          "category": "general",
          "text": "Systems with microprocessors utilizing speculative execution and address translations may allow unauthorized disclosure of information residing in the L1 data cache to an attacker with local user access with guest OS privilege via a terminal page fault and a side-channel analysis.",
          "title": "CVE description"
        }
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        {
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          "url": "https://bugzilla.suse.com/1087081"
        },
        {
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          "summary": "SUSE Bug 1089343 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1089343"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1091107 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1091107"
        },
        {
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          "summary": "SUSE Bug 1099306 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1099306"
        },
        {
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          "summary": "SUSE Bug 1104365 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1104365"
        },
        {
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          "summary": "SUSE Bug 1104894 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1104894"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1106548 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1106548"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1113534 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1113534"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1136865 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1136865"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1178658 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1178658"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1201877 for CVE-2018-3646",
          "url": "https://bugzilla.suse.com/1201877"
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      ],
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          "product_ids": [
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            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-default-3-2.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-xen-3-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
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            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N",
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            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-default-3-2.1.x86_64",
            "SUSE Linux Enterprise Server for SAP Applications 12 SP1:kgraft-patch-3_12_74-60_64_93-xen-3-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-08-16T06:06:23Z",
          "details": "important"
        }
      ],
      "title": "CVE-2018-3646"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
  • Confirmed: The vulnerability is confirmed from an analyst perspective.
  • Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
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