Vulnerability from csaf_suse
Published
2017-12-14 14:51
Modified
2017-12-14 14:51
Summary
Security update for the Linux Kernel (Live Patch 3 for SLE 12 SP3)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 3 for SLE 12 SP3)
Description of the patch
This update for the Linux Kernel 4.4.82-6_9 fixes several issues. The following security issues were fixed: - CVE-2017-1000405: Problematic use of pmd_mkdirty() in the touch_pmd() function allowed users to overwrite read-only huge pages (e.g. the zero huge page and sealed shmem files) (bsc#1070307). - CVE-2017-16939: The XFRM dump policy implementation in net/xfrm/xfrm_user.c kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages (bsc#1069708). This non-security issue was fixed: - bsc#1062847: Enable proper shut down if NIC teaming is enabled
Patchnames
SUSE-SLE-Live-Patching-12-SP3-2017-2075
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": {
    "aggregate_severity": {
      "namespace": "https://www.suse.com/support/security/rating/",
      "text": "important"
    },
    "category": "csaf_security_advisory",
    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
        "label": "WHITE",
        "url": "https://www.first.org/tlp/"
      }
    },
    "lang": "en",
    "notes": [
      {
        "category": "summary",
        "text": "Security update for the Linux Kernel (Live Patch 3 for SLE 12 SP3)",
        "title": "Title of the patch"
      },
      {
        "category": "description",
        "text": "This update for the Linux Kernel 4.4.82-6_9 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2017-1000405: Problematic use of pmd_mkdirty() in the touch_pmd() function allowed users to overwrite read-only huge pages (e.g. the zero huge page and sealed shmem files) (bsc#1070307).\n- CVE-2017-16939: The XFRM dump policy implementation in net/xfrm/xfrm_user.c kernel allowed local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages (bsc#1069708).\n\nThis non-security issue was fixed:\n\n- bsc#1062847: Enable proper shut down if NIC teaming is enabled\n",
        "title": "Description of the patch"
      },
      {
        "category": "details",
        "text": "SUSE-SLE-Live-Patching-12-SP3-2017-2075",
        "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": {
      "category": "vendor",
      "contact_details": "https://www.suse.com/support/security/contact/",
      "name": "SUSE Product Security Team",
      "namespace": "https://www.suse.com/"
    },
    "references": [
      {
        "category": "external",
        "summary": "SUSE ratings",
        "url": "https://www.suse.com/support/security/rating/"
      },
      {
        "category": "self",
        "summary": "URL of this CSAF notice",
        "url": "https://ftp.suse.com/pub/projects/security/csaf/suse-su-2017_3314-1.json"
      },
      {
        "category": "self",
        "summary": "URL for SUSE-SU-2017:3314-1",
        "url": "https://www.suse.com/support/update/announcement/2017/suse-su-20173314-1/"
      },
      {
        "category": "self",
        "summary": "E-Mail link for SUSE-SU-2017:3314-1",
        "url": "https://lists.suse.com/pipermail/sle-security-updates/2017-December/003522.html"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1055567",
        "url": "https://bugzilla.suse.com/1055567"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1062847",
        "url": "https://bugzilla.suse.com/1062847"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1069708",
        "url": "https://bugzilla.suse.com/1069708"
      },
      {
        "category": "self",
        "summary": "SUSE Bug 1070307",
        "url": "https://bugzilla.suse.com/1070307"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2017-1000405 page",
        "url": "https://www.suse.com/security/cve/CVE-2017-1000405/"
      },
      {
        "category": "self",
        "summary": "SUSE CVE CVE-2017-16939 page",
        "url": "https://www.suse.com/security/cve/CVE-2017-16939/"
      }
    ],
    "title": "Security update for the Linux Kernel (Live Patch 3 for SLE 12 SP3)",
    "tracking": {
      "current_release_date": "2017-12-14T14:51:26Z",
      "generator": {
        "date": "2017-12-14T14:51:26Z",
        "engine": {
          "name": "cve-database.git:bin/generate-csaf.pl",
          "version": "1"
        }
      },
      "id": "SUSE-SU-2017:3314-1",
      "initial_release_date": "2017-12-14T14:51:26Z",
      "revision_history": [
        {
          "date": "2017-12-14T14:51:26Z",
          "number": "1",
          "summary": "Current version"
        }
      ],
      "status": "final",
      "version": "1"
    }
  },
  "product_tree": {
    "branches": [
      {
        "branches": [
          {
            "branches": [
              {
                "category": "product_version",
                "name": "kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64",
                "product": {
                  "name": "kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64",
                  "product_id": "kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64"
                }
              }
            ],
            "category": "architecture",
            "name": "x86_64"
          },
          {
            "branches": [
              {
                "category": "product_name",
                "name": "SUSE Linux Enterprise Live Patching 12 SP3",
                "product": {
                  "name": "SUSE Linux Enterprise Live Patching 12 SP3",
                  "product_id": "SUSE Linux Enterprise Live Patching 12 SP3",
                  "product_identification_helper": {
                    "cpe": "cpe:/o:suse:sle-live-patching:12:sp3"
                  }
                }
              }
            ],
            "category": "product_family",
            "name": "SUSE Linux Enterprise"
          }
        ],
        "category": "vendor",
        "name": "SUSE"
      }
    ],
    "relationships": [
      {
        "category": "default_component_of",
        "full_product_name": {
          "name": "kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64 as component of SUSE Linux Enterprise Live Patching 12 SP3",
          "product_id": "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64"
        },
        "product_reference": "kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64",
        "relates_to_product_reference": "SUSE Linux Enterprise Live Patching 12 SP3"
      }
    ]
  },
  "vulnerabilities": [
    {
      "cve": "CVE-2017-1000405",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2017-1000405"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "The Linux Kernel versions 2.6.38 through 4.14 have a problematic use of pmd_mkdirty() in the touch_pmd() function inside the THP implementation. touch_pmd() can be reached by get_user_pages(). In such case, the pmd will become dirty. This scenario breaks the new can_follow_write_pmd()\u0027s logic - pmd can become dirty without going through a COW cycle. This bug is not as severe as the original \"Dirty cow\" because an ext4 file (or any other regular file) cannot be mapped using THP. Nevertheless, it does allow us to overwrite read-only huge pages. For example, the zero huge page and sealed shmem files can be overwritten (since their mapping can be populated using THP). Note that after the first write page-fault to the zero page, it will be replaced with a new fresh (and zeroed) thp.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2017-1000405",
          "url": "https://www.suse.com/security/cve/CVE-2017-1000405"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1069496 for CVE-2017-1000405",
          "url": "https://bugzilla.suse.com/1069496"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1070307 for CVE-2017-1000405",
          "url": "https://bugzilla.suse.com/1070307"
        }
      ],
      "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 12 SP3:kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.7,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:L",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2017-12-14T14:51:26Z",
          "details": "important"
        }
      ],
      "title": "CVE-2017-1000405"
    },
    {
      "cve": "CVE-2017-16939",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2017-16939"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "The XFRM dump policy implementation in net/xfrm/xfrm_user.c in the Linux kernel before 4.13.11 allows local users to gain privileges or cause a denial of service (use-after-free) via a crafted SO_RCVBUF setsockopt system call in conjunction with XFRM_MSG_GETPOLICY Netlink messages.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2017-16939",
          "url": "https://www.suse.com/security/cve/CVE-2017-16939"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1069702 for CVE-2017-16939",
          "url": "https://bugzilla.suse.com/1069702"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1069708 for CVE-2017-16939",
          "url": "https://bugzilla.suse.com/1069708"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1115893 for CVE-2017-16939",
          "url": "https://bugzilla.suse.com/1115893"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1120260 for CVE-2017-16939",
          "url": "https://bugzilla.suse.com/1120260"
        }
      ],
      "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 12 SP3:kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_82-6_9-default-3-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2017-12-14T14:51:26Z",
          "details": "important"
        }
      ],
      "title": "CVE-2017-16939"
    }
  ]
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • 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.
  • Patched: This vulnerability was successfully patched by the user reporting the sighting.
  • Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
  • Not confirmed: The user expresses doubt about the veracity of the vulnerability.
  • Not patched: This vulnerability was not successfully patched by the user reporting the sighting.


OSZAR »