suse-su-2018:3268-1
Vulnerability from csaf_suse
Published
2018-10-22 09:17
Modified
2018-10-22 09:17
Summary
Security update for the Linux Kernel (Live Patch 19 for SLE 12 SP3)

Notes

Title of the patch
Security update for the Linux Kernel (Live Patch 19 for SLE 12 SP3)
Description of the patch
This update for the Linux Kernel 4.4.156-94_61 fixes one issue. The following security issue was fixed: - CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target's code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bsc#1107832).
Patchnames
SUSE-SLE-Live-Patching-12-SP3-2018-2362,SUSE-SLE-Live-Patching-12-SP3-2018-2363
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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    "csaf_version": "2.0",
    "distribution": {
      "text": "Copyright 2024 SUSE LLC. All rights reserved.",
      "tlp": {
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        "text": "This update for the Linux Kernel 4.4.156-94_61 fixes one issue.\n\nThe following security issue was fixed:\n\n- CVE-2018-14633: A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target\u0027s code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. (bsc#1107832).\n",
        "title": "Description of the patch"
      },
      {
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        "title": "Patchnames"
      },
      {
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        "title": "Terms of use"
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        "url": "https://www.suse.com/security/cve/CVE-2018-14633/"
      }
    ],
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  "vulnerabilities": [
    {
      "cve": "CVE-2018-14633",
      "ids": [
        {
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          "text": "https://www.suse.com/security/cve/CVE-2018-14633"
        }
      ],
      "notes": [
        {
          "category": "general",
          "text": "A security flaw was found in the chap_server_compute_md5() function in the ISCSI target code in the Linux kernel in a way an authentication request from an ISCSI initiator is processed. An unauthenticated remote attacker can cause a stack buffer overflow and smash up to 17 bytes of the stack. The attack requires the iSCSI target to be enabled on the victim host. Depending on how the target\u0027s code was built (i.e. depending on a compiler, compile flags and hardware architecture) an attack may lead to a system crash and thus to a denial-of-service or possibly to a non-authorized access to data exported by an iSCSI target. Due to the nature of the flaw, privilege escalation cannot be fully ruled out, although we believe it is highly unlikely. Kernel versions 4.18.x, 4.14.x and 3.10.x are believed to be vulnerable.",
          "title": "CVE description"
        }
      ],
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          "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_156-94_61-default-2-2.1.ppc64le",
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          "summary": "CVE-2018-14633",
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        {
          "category": "external",
          "summary": "SUSE Bug 1107829 for CVE-2018-14633",
          "url": "https://bugzilla.suse.com/1107829"
        },
        {
          "category": "external",
          "summary": "SUSE Bug 1107832 for CVE-2018-14633",
          "url": "https://bugzilla.suse.com/1107832"
        }
      ],
      "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_156-94_57-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_156-94_57-default-2-2.1.x86_64",
            "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_156-94_61-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_156-94_61-default-2-2.1.x86_64"
          ]
        }
      ],
      "scores": [
        {
          "cvss_v3": {
            "baseScore": 8.8,
            "baseSeverity": "HIGH",
            "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
            "version": "3.0"
          },
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            "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_156-94_61-default-2-2.1.ppc64le",
            "SUSE Linux Enterprise Live Patching 12 SP3:kgraft-patch-4_4_156-94_61-default-2-2.1.x86_64"
          ]
        }
      ],
      "threats": [
        {
          "category": "impact",
          "date": "2018-10-22T09:17:53Z",
          "details": "moderate"
        }
      ],
      "title": "CVE-2018-14633"
    }
  ]
}


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