suse-su-2018:2935-1
Vulnerability from csaf_suse
Published
2018-09-28 12:49
Modified
2018-09-28 12:49
Summary
Security update for the Linux Kernel (Live Patch 3 for SLE 15)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 3 for SLE 15)
Description of the patch
This update for the Linux Kernel 4.12.14-25_13 fixes several issues. The following security issues were fixed: - CVE-2018-10938: It was found that a crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system an attacker could leverage this flaw (bsc#1106191). - CVE-2018-15471: It was found that the netback driver allowed frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may caused the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks (bsc#1105026). - CVE-2018-10853: It was found that the KVM hypervisor emulated instructions 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 (bsc#1097108).
Patchnames
SUSE-SLE-Module-Live-Patching-15-2018-2076
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 

{
  "document": {
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      "text": "important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
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    "lang": "en",
    "notes": [
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        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for the Linux Kernel 4.12.14-25_13 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2018-10938: It was found that a crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system an attacker could leverage this flaw (bsc#1106191).\n- CVE-2018-15471: It was found that the netback driver allowed frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may caused the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks (bsc#1105026).\n- CVE-2018-10853: It was found that the KVM hypervisor emulated instructions 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 (bsc#1097108).\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-SLE-Module-Live-Patching-15-2018-2076",
        "title": "Patchnames"
      },
      {
        "category": "legal_disclaimer",
        "text": "CSAF 2.0 data is provided by SUSE under the Creative Commons License 4.0 with Attribution (CC-BY-4.0).",
        "title": "Terms of use"
      }
    ],
    "publisher": {
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        "summary": "SUSE ratings",
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        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2018_2935-1.json"
      },
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        "category": "self",
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      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2018:2935-1",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2018-September/004623.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1097108",
        "url": "https://bugzilla.suse.com/1097108"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1103203",
        "url": "https://bugzilla.suse.com/1103203"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1105026",
        "url": "https://bugzilla.suse.com/1105026"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1106191",
        "url": "https://bugzilla.suse.com/1106191"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2018-10853 page",
        "url": "https://www.suse.com/security/cve/CVE-2018-10853/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2018-10938 page",
        "url": "https://www.suse.com/security/cve/CVE-2018-10938/"
      },
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        "category": "self",
        "summary": "SUSE CVE CVE-2018-15471 page",
        "url": "https://www.suse.com/security/cve/CVE-2018-15471/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 3 for SLE 15)",
    "tracking": {
      "current_release_date": "2018-09-28T12:49:41Z",
      "generator": {
        "date": "2018-09-28T12:49:41Z",
        "engine": {
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          "version": "1"
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      },
      "id": "SUSE-SU-2018:2935-1",
      "initial_release_date": "2018-09-28T12:49:41Z",
      "revision_history": [
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          "date": "2018-09-28T12:49:41Z",
          "number": "1",
          "summary": "Current version"
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      ],
      "status": "final",
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  },
  "product_tree": {
    "branches": [
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                "name": "kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le",
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                    "cpe": "cpe:/o:suse:sle-module-live-patching:15"
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    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le as component of SUSE Linux Enterprise Live Patching 15",
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        },
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        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 15"
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  },
  "vulnerabilities": [
    {
      "cve": "CVE-2018-10853",
      "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"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-10853",
          "url": "https://www.suse.com/security/cve/CVE-2018-10853"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1097104 for CVE-2018-10853",
          "url": "https://bugzilla.suse.com/1097104"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1097108 for CVE-2018-10853",
          "url": "https://bugzilla.suse.com/1097108"
        }
      ],
      "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 Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.x86_64"
          ]
        }
      ],
      "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": [
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-09-28T12:49:41Z",
          "details": "important"
        }
      ],
      "title": "CVE-2018-10853"
    },
    {
      "cve": "CVE-2018-10938",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-10938"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A flaw was found in the Linux kernel present since v4.0-rc1 and through v4.13-rc4. A crafted network packet sent remotely by an attacker may force the kernel to enter an infinite loop in the cipso_v4_optptr() function in net/ipv4/cipso_ipv4.c leading to a denial-of-service. A certain non-default configuration of LSM (Linux Security Module) and NetLabel should be set up on a system before an attacker could leverage this flaw.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-10938",
          "url": "https://www.suse.com/security/cve/CVE-2018-10938"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1106016 for CVE-2018-10938",
          "url": "https://bugzilla.suse.com/1106016"
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        {
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          "summary": "SUSE Bug 1106191 for CVE-2018-10938",
          "url": "https://bugzilla.suse.com/1106191"
        }
      ],
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        {
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          "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 Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.x86_64"
          ]
        }
      ],
      "scores": [
        {
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            "version": "3.0"
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            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.x86_64"
          ]
        }
      ],
      "threats": [
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          "date": "2018-09-28T12:49:41Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2018-10938"
    },
    {
      "cve": "CVE-2018-15471",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2018-15471"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "An issue was discovered in xenvif_set_hash_mapping in drivers/net/xen-netback/hash.c in the Linux kernel through 4.18.1, as used in Xen through 4.11.x and other products. The Linux netback driver allows frontends to control mapping of requests to request queues. When processing a request to set or change this mapping, some input validation (e.g., for an integer overflow) was missing or flawed, leading to OOB access in hash handling. A malicious or buggy frontend may cause the (usually privileged) backend to make out of bounds memory accesses, potentially resulting in one or more of privilege escalation, Denial of Service (DoS), or information leaks.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2018-15471",
          "url": "https://www.suse.com/security/cve/CVE-2018-15471"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1103277 for CVE-2018-15471",
          "url": "https://bugzilla.suse.com/1103277"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1104641 for CVE-2018-15471",
          "url": "https://bugzilla.suse.com/1104641"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1105026 for CVE-2018-15471",
          "url": "https://bugzilla.suse.com/1105026"
        }
      ],
      "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 Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-25_13-default-3-2.3.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-09-28T12:49:41Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2018-15471"
    }
  ]
}


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