suse-su-2020:3051-1
Vulnerability from csaf_suse
Published
2020-10-27 15:08
Modified
2020-10-27 15:08
Summary
Security update for xen

Notes

Title of the patch
Security update for xen
Description of the patch
This update for xen fixes the following issues: - bsc#1177409 - VUL-0: CVE-2020-27673: xen: x86 PV guest INVLPG-like flushes may leave stale TLB entries (XSA-286) - bsc#1177412 - VUL-0: CVE-2020-27672: xen: Race condition in Xen mapping code (XSA-345) - bsc#1177413 - VUL-0: CVE-2020-27671: xen: undue deferral of IOMMU TLB flushes (XSA-346) - bsc#1177414 - VUL-0: CVE-2020-27670: xen: unsafe AMD IOMMU page table updates (XSA-347)
Patchnames
SUSE-2020-3051,SUSE-SLE-Module-Basesystem-15-SP1-2020-3051,SUSE-SLE-Module-Server-Applications-15-SP1-2020-3051
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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        "title": "Description of the patch"
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            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-devel-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-tools-4.12.3_10-3.31.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2020-10-27T15:08:58Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-27671"
    },
    {
      "cve": "CVE-2020-27672",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-27672"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in Xen through 4.14.x allowing x86 guest OS users to cause a host OS denial of service, achieve data corruption, or possibly gain privileges by exploiting a race condition that leads to a use-after-free involving 2MiB and 1GiB superpages.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-libs-4.12.3_10-3.31.1.x86_64",
          "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-tools-domU-4.12.3_10-3.31.1.x86_64",
          "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-4.12.3_10-3.31.1.x86_64",
          "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-devel-4.12.3_10-3.31.1.x86_64",
          "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-tools-4.12.3_10-3.31.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-27672",
          "url": "https://www.suse.com/security/cve/CVE-2020-27672"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1177412 for CVE-2020-27672",
          "url": "https://bugzilla.suse.com/1177412"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1178658 for CVE-2020-27672",
          "url": "https://bugzilla.suse.com/1178658"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1183925 for CVE-2020-27672",
          "url": "https://bugzilla.suse.com/1183925"
        }
      ],
      "remediations": [
        {
          "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 Module for Basesystem 15 SP1:xen-libs-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-tools-domU-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-devel-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-tools-4.12.3_10-3.31.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-libs-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-tools-domU-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-devel-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-tools-4.12.3_10-3.31.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2020-10-27T15:08:58Z",
          "details": "important"
        }
      ],
      "title": "CVE-2020-27672"
    },
    {
      "cve": "CVE-2020-27673",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2020-27673"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in the Linux kernel through 5.9.1, as used with Xen through 4.14.x. Guest OS users can cause a denial of service (host OS hang) via a high rate of events to dom0, aka CID-e99502f76271.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-libs-4.12.3_10-3.31.1.x86_64",
          "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-tools-domU-4.12.3_10-3.31.1.x86_64",
          "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-4.12.3_10-3.31.1.x86_64",
          "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-devel-4.12.3_10-3.31.1.x86_64",
          "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-tools-4.12.3_10-3.31.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2020-27673",
          "url": "https://www.suse.com/security/cve/CVE-2020-27673"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1177411 for CVE-2020-27673",
          "url": "https://bugzilla.suse.com/1177411"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1184583 for CVE-2020-27673",
          "url": "https://bugzilla.suse.com/1184583"
        }
      ],
      "remediations": [
        {
          "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 Module for Basesystem 15 SP1:xen-libs-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-tools-domU-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-devel-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-tools-4.12.3_10-3.31.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.2,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
          },
          "products": [
            "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-libs-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Basesystem 15 SP1:xen-tools-domU-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-devel-4.12.3_10-3.31.1.x86_64",
            "SUSE Linux Enterprise Module for Server Applications 15 SP1:xen-tools-4.12.3_10-3.31.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2020-10-27T15:08:58Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2020-27673"
    }
  ]
}


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  • Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
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