SUSE-SU-2017:2327-1

Vulnerability from csaf_suse - Published: 2017-11-16 10:21 - Updated: 2017-11-16 10:21
Summary
Security update for xen
Severity
Important
Notes
Title of the patch: Security update for xen
Description of the patch: This update for xen fixes several issues. These security issues were fixed: - CVE-2017-12135: Unbounded recursion in grant table code allowed a malicious guest to crash the host or potentially escalate privileges/leak information (XSA-226, bsc#1051787). - CVE-2017-12137: Incorrectly-aligned updates to pagetables allowed for privilege escalation (XSA-227, bsc#1051788). - CVE-2017-12136: Race conditions with maptrack free list handling allows a malicious guest administrator to crash the host or escalate their privilege to that of the host (XSA-228, bsc#1051789). - CVE-2017-11434: The dhcp_decode function in slirp/bootp.c allowed local guest OS users to cause a denial of service (out-of-bounds read) via a crafted DHCP options string (bsc#1049578). - CVE-2017-10664: qemu-nbd did not ignore SIGPIPE, which allowed remote attackers to cause a denial of service (daemon crash) by disconnecting during a server-to-client reply attempt (bsc#1046637). - CVE-2017-12855: Premature clearing of GTF_writing / GTF_reading lead to potentially leaking sensitive information (XSA-230 bsc#1052686. These non-security issues were fixed: - bsc#1055695: XEN: 11SP4 and 12SP3 HVM guests can not be restored after the save using xl stack - bsc#1035231: Migration of HVM domU did not use superpages on destination dom0 - bsc#1002573: Optimized LVM functions in block-dmmd block-dmmd
Patchnames: SUSE-SLE-DESKTOP-12-SP3-2017-1437,SUSE-SLE-SDK-12-SP3-2017-1437
Terms of use: CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
Vendor Fix To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
References
https://www.suse.com/support/security/rating/ external
https://ftp.suse.com/pub/projects/security/csaf/s… self
https://www.suse.com/support/update/announcement/… self
https://lists.suse.com/pipermail/sle-security-upd… self
https://bugzilla.suse.com/1002573 self
https://bugzilla.suse.com/1026236 self
https://bugzilla.suse.com/1027519 self
https://bugzilla.suse.com/1035231 self
https://bugzilla.suse.com/1046637 self
https://bugzilla.suse.com/1049578 self
https://bugzilla.suse.com/1051787 self
https://bugzilla.suse.com/1051788 self
https://bugzilla.suse.com/1051789 self
https://bugzilla.suse.com/1052686 self
https://bugzilla.suse.com/1055695 self
https://www.suse.com/security/cve/CVE-2017-10664/ self
https://www.suse.com/security/cve/CVE-2017-11434/ self
https://www.suse.com/security/cve/CVE-2017-12135/ self
https://www.suse.com/security/cve/CVE-2017-12136/ self
https://www.suse.com/security/cve/CVE-2017-12137/ self
https://www.suse.com/security/cve/CVE-2017-12855/ self
https://www.suse.com/security/cve/CVE-2017-10664 external
https://bugzilla.suse.com/1046636 external
https://bugzilla.suse.com/1046637 external
https://bugzilla.suse.com/1178658 external
https://www.suse.com/security/cve/CVE-2017-11434 external
https://bugzilla.suse.com/1049381 external
https://bugzilla.suse.com/1049578 external
https://bugzilla.suse.com/1178658 external
https://www.suse.com/security/cve/CVE-2017-12135 external
https://bugzilla.suse.com/1051787 external
https://bugzilla.suse.com/1169392 external
https://bugzilla.suse.com/1178658 external
https://www.suse.com/security/cve/CVE-2017-12136 external
https://bugzilla.suse.com/1051789 external
https://www.suse.com/security/cve/CVE-2017-12137 external
https://bugzilla.suse.com/1051788 external
https://bugzilla.suse.com/1178658 external
https://www.suse.com/security/cve/CVE-2017-12855 external
https://bugzilla.suse.com/1052686 external
https://bugzilla.suse.com/1178658 external

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        {
          "cvss_v3": {
            "baseScore": 8.6,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2017-11-16T10:21:09Z",
          "details": "important"
        }
      ],
      "title": "CVE-2017-11434"
    },
    {
      "cve": "CVE-2017-12135",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2017-12135"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Xen allows local OS guest users to cause a denial of service (crash) or possibly obtain sensitive information or gain privileges via vectors involving transitive grants.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
          "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2017-12135",
          "url": "https://www.suse.com/security/cve/CVE-2017-12135"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1051787 for CVE-2017-12135",
          "url": "https://bugzilla.suse.com/1051787"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1169392 for CVE-2017-12135",
          "url": "https://bugzilla.suse.com/1169392"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1178658 for CVE-2017-12135",
          "url": "https://bugzilla.suse.com/1178658"
        }
      ],
      "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 Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.3,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:H",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2017-11-16T10:21:09Z",
          "details": "important"
        }
      ],
      "title": "CVE-2017-12135"
    },
    {
      "cve": "CVE-2017-12136",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2017-12136"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Race condition in the grant table code in Xen 4.6.x through 4.9.x allows local guest OS administrators to cause a denial of service (free list corruption and host crash) or gain privileges on the host via vectors involving maptrack free list handling.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
          "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2017-12136",
          "url": "https://www.suse.com/security/cve/CVE-2017-12136"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1051789 for CVE-2017-12136",
          "url": "https://bugzilla.suse.com/1051789"
        }
      ],
      "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 Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2017-11-16T10:21:09Z",
          "details": "important"
        }
      ],
      "title": "CVE-2017-12136"
    },
    {
      "cve": "CVE-2017-12137",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2017-12137"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "arch/x86/mm.c in Xen allows local PV guest OS users to gain host OS privileges via vectors related to map_grant_ref.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
          "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2017-12137",
          "url": "https://www.suse.com/security/cve/CVE-2017-12137"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1051788 for CVE-2017-12137",
          "url": "https://bugzilla.suse.com/1051788"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1178658 for CVE-2017-12137",
          "url": "https://bugzilla.suse.com/1178658"
        }
      ],
      "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 Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.1,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2017-11-16T10:21:09Z",
          "details": "important"
        }
      ],
      "title": "CVE-2017-12137"
    },
    {
      "cve": "CVE-2017-12855",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2017-12855"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "Xen maintains the _GTF_{read,writ}ing bits as appropriate, to inform the guest that a grant is in use. A guest is expected not to modify the grant details while it is in use, whereas the guest is free to modify/reuse the grant entry when it is not in use. Under some circumstances, Xen will clear the status bits too early, incorrectly informing the guest that the grant is no longer in use. A guest may prematurely believe that a granted frame is safely private again, and reuse it in a way which contains sensitive information, while the domain on the far end of the grant is still using the grant. Xen 4.9, 4.8, 4.7, 4.6, and 4.5 are affected.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
          "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
          "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2017-12855",
          "url": "https://www.suse.com/security/cve/CVE-2017-12855"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1052686 for CVE-2017-12855",
          "url": "https://bugzilla.suse.com/1052686"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1178658 for CVE-2017-12855",
          "url": "https://bugzilla.suse.com/1178658"
        }
      ],
      "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 Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 6.5,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Desktop 12 SP3:xen-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-32bit-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Desktop 12 SP3:xen-libs-4.9.0_11-3.9.1.x86_64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.aarch64",
            "SUSE Linux Enterprise Software Development Kit 12 SP3:xen-devel-4.9.0_11-3.9.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2017-11-16T10:21:09Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2017-12855"
    }
  ]
}


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Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


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Detection rules are retrieved from Rulezet.

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