suse-su-2019:1588-1
Vulnerability from csaf_suse
Published
2019-06-20 17:49
Modified
2019-06-20 17:49
Summary
Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP1)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 0 for SLE 15 SP1)
Description of the patch
This update for the Linux Kernel 4.12.14-195 fixes several issues. The following security issues were fixed: - CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network (bsc#1136446). - CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel panic. (bsc#1137586). - CVE-2019-11478: It was possible to send a crafted sequence of SACKs which would fragment the TCP retransmission queue. A remote attacker may have been able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. (bsc#1137586) - CVE-2019-11487: The Linux kernel allowed page->_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests (bsc#1133191).
Patchnames
SUSE-2019-1588,SUSE-SLE-Module-Live-Patching-15-2019-1578,SUSE-SLE-Module-Live-Patching-15-2019-1580,SUSE-SLE-Module-Live-Patching-15-SP1-2019-1588
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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        "text": "This update for the Linux Kernel 4.12.14-195 fixes several issues.\n\nThe following security issues were fixed:\n\n- CVE-2019-3846: A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network (bsc#1136446).\n- CVE-2019-11477: A sequence of SACKs may have been crafted by a remote attacker such that one can trigger an integer overflow, leading to a kernel panic. (bsc#1137586).\n- CVE-2019-11478: It was possible to send a crafted sequence of SACKs which would fragment the TCP retransmission queue. A remote attacker may have been able to further exploit the fragmented queue to cause an expensive linked-list walk for subsequent SACKs received for that same TCP connection. (bsc#1137586)\n- CVE-2019-11487: The Linux kernel allowed page-\u003e_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests (bsc#1133191).\n",
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  "vulnerabilities": [
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          "text": "Jonathan Looney discovered that the TCP_SKB_CB(skb)-\u003etcp_gso_segs value was subject to an integer overflow in the Linux kernel when handling TCP Selective Acknowledgments (SACKs). A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit 3b4929f65b0d8249f19a50245cd88ed1a2f78cff.",
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      "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",
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      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.2,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H",
            "version": "3.0"
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      "threats": [
        {
          "category": "impact",
          "date": "2019-06-20T17:49:38Z",
          "details": "important"
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      "title": "CVE-2019-11477"
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          "text": "Jonathan Looney discovered that the TCP retransmission queue implementation in tcp_fragment in the Linux kernel could be fragmented when handling certain TCP Selective Acknowledgment (SACK) sequences. A remote attacker could use this to cause a denial of service. This has been fixed in stable kernel releases 4.4.182, 4.9.182, 4.14.127, 4.19.52, 5.1.11, and is fixed in commit f070ef2ac66716357066b683fb0baf55f8191a2e.",
          "title": "CVE description"
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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 Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2019-06-20T17:49:38Z",
          "details": "important"
        }
      ],
      "title": "CVE-2019-11478"
    },
    {
      "cve": "CVE-2019-11487",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2019-11487"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "The Linux kernel before 5.1-rc5 allows page-\u003e_refcount reference count overflow, with resultant use-after-free issues, if about 140 GiB of RAM exists. This is related to fs/fuse/dev.c, fs/pipe.c, fs/splice.c, include/linux/mm.h, include/linux/pipe_fs_i.h, kernel/trace/trace.c, mm/gup.c, and mm/hugetlb.c. It can occur with FUSE requests.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.x86_64",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.x86_64",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2019-11487",
          "url": "https://www.suse.com/security/cve/CVE-2019-11487"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1133190 for CVE-2019-11487",
          "url": "https://bugzilla.suse.com/1133190"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1133191 for CVE-2019-11487",
          "url": "https://bugzilla.suse.com/1133191"
        }
      ],
      "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 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.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 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2019-06-20T17:49:38Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2019-11487"
    },
    {
      "cve": "CVE-2019-3846",
      "ids": [
        {
          "system_name": "SUSE CVE Page",
          "text": "https://www.suse.com/security/cve/CVE-2019-3846"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A flaw that allowed an attacker to corrupt memory and possibly escalate privileges was found in the mwifiex kernel module while connecting to a malicious wireless network.",
          "title": "CVE description"
        }
      ],
      "product_status": {
        "recommended": [
          "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.x86_64",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.x86_64",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.ppc64le",
          "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.x86_64"
        ]
      },
      "references": [
        {
          "category": "external",
          "summary": "CVE-2019-3846",
          "url": "https://www.suse.com/security/cve/CVE-2019-3846"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1136424 for CVE-2019-3846",
          "url": "https://bugzilla.suse.com/1136424"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1136446 for CVE-2019-3846",
          "url": "https://bugzilla.suse.com/1136446"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1156330 for CVE-2019-3846",
          "url": "https://bugzilla.suse.com/1156330"
        }
      ],
      "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 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:A/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
          "products": [
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15 SP1:kernel-livepatch-4_12_14-195-default-2-4.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_14-default-2-2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 15:kernel-livepatch-4_12_14-150_17-default-2-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2019-06-20T17:49:38Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2019-3846"
    }
  ]
}


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