cnvd - cnvd-2018-20065

cnvd-2018-20065

Vulnerability from cnvd

Title: Linux kernel缓冲区溢出漏洞（CNVD-2018-20065）

Description:

Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。

Linux kernel 4.18.x版本，4.14.x版本和3.10.x版本中的ISCSI target代码的‘chap_server_compute_md5()’函数存在缓冲区溢出漏洞，远程攻击者可利用该漏洞导致拒绝服务（系统崩溃）或未授权访问iSCSI target导出的数据。

Severity: 中

Patch Name: Linux kernel缓冲区溢出漏洞（CNVD-2018-20065）的补丁

Patch Description:

Linux kernel是美国Linux基金会发布的开源操作系统Linux所使用的内核。

Linux kernel 4.18.x版本，4.14.x版本和3.10.x版本中的ISCSI target代码的‘chap_server_compute_md5()’函数存在缓冲区溢出漏洞，远程攻击者可利用该漏洞导致拒绝服务（系统崩溃）或未授权访问iSCSI target导出的数据。目前，供应商发布了安全公告及相关补丁信息，修复了此漏洞。

Formal description:

厂商已发布了漏洞修复程序，请及时关注更新： https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes&id=1816494330a83f2a064499d8ed2797045641f92c

Reference: https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14633 https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes&id=1816494330a83f2a064499d8ed2797045641f92c https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes&id=8c39e2699f8acb2e29782a834e56306da24937fe https://seclists.org/oss-sec/2018/q3/270

Impacted products

Name
['Linux kernel 4.18.', 'Linux kernel 4.14.', 'Linux kernel 3.10.*']

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2018-14633"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.18.x\u7248\u672c\uff0c4.14.x\u7248\u672c\u548c3.10.x\u7248\u672c\u4e2d\u7684ISCSI target\u4ee3\u7801\u7684\u2018chap_server_compute_md5()\u2019\u51fd\u6570\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5d29\u6e83\uff09\u6216\u672a\u6388\u6743\u8bbf\u95eeiSCSI target\u5bfc\u51fa\u7684\u6570\u636e\u3002",
  "discovererName": "Vincent Pelletier",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes\u0026id=1816494330a83f2a064499d8ed2797045641f92c",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2018-20065",
  "openTime": "2018-09-29",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel 4.18.x\u7248\u672c\uff0c4.14.x\u7248\u672c\u548c3.10.x\u7248\u672c\u4e2d\u7684ISCSI target\u4ee3\u7801\u7684\u2018chap_server_compute_md5()\u2019\u51fd\u6570\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8fdc\u7a0b\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5bfc\u81f4\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5d29\u6e83\uff09\u6216\u672a\u6388\u6743\u8bbf\u95eeiSCSI target\u5bfc\u51fa\u7684\u6570\u636e\u3002\u76ee\u524d\uff0c\u4f9b\u5e94\u5546\u53d1\u5e03\u4e86\u5b89\u5168\u516c\u544a\u53ca\u76f8\u5173\u8865\u4e01\u4fe1\u606f\uff0c\u4fee\u590d\u4e86\u6b64\u6f0f\u6d1e\u3002",
  "patchName": "Linux kernel\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2018-20065\uff09\u7684\u8865\u4e01",
  "products": {
    "product": [
      "Linux kernel 4.18.*",
      "Linux kernel 4.14.*",
      "Linux kernel 3.10.*"
    ]
  },
  "referenceLink": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14633\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes\u0026id=1816494330a83f2a064499d8ed2797045641f92c\r\nhttps://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes\u0026id=8c39e2699f8acb2e29782a834e56306da24937fe\r\nhttps://seclists.org/oss-sec/2018/q3/270",
  "serverity": "\u4e2d",
  "submitTime": "2018-09-26",
  "title": "Linux kernel\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff08CNVD-2018-20065\uff09"
}

CVE-2018-14633 (GCVE-0-2018-14633)

Vulnerability from cvelistv5

Published

2018-09-25 00:00

Modified

2024-08-05 09:38

Severity ?

7.0 (High) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

CWE

CWE-121

Summary

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'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. Kernel versions 4.18.x, 4.14.x and 3.10.x are believed to be vulnerable.

References

▼	URL	Tags
	https://usn.ubuntu.com/3776-1/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/3776-2/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/3777-1/	vendor-advisory, x_refsource_UBUNTU
	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14633	x_refsource_CONFIRM
	https://usn.ubuntu.com/3775-1/	vendor-advisory, x_refsource_UBUNTU
	https://seclists.org/oss-sec/2018/q3/270	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html	mailing-list, x_refsource_MLIST
	https://usn.ubuntu.com/3779-1/	vendor-advisory, x_refsource_UBUNTU
	http://www.securityfocus.com/bid/105388	vdb-entry, x_refsource_BID
	https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes&id=8c39e2699f8acb2e29782a834e56306da24937fe	x_refsource_CONFIRM
	https://access.redhat.com/errata/RHSA-2018:3666	vendor-advisory, x_refsource_REDHAT
	https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes&id=1816494330a83f2a064499d8ed2797045641f92c	x_refsource_CONFIRM
	https://www.debian.org/security/2018/dsa-4308	vendor-advisory, x_refsource_DEBIAN
	https://access.redhat.com/errata/RHSA-2018:3651	vendor-advisory, x_refsource_REDHAT
	https://usn.ubuntu.com/3775-2/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/3777-2/	vendor-advisory, x_refsource_UBUNTU
	https://usn.ubuntu.com/3777-3/	vendor-advisory, x_refsource_UBUNTU
	https://access.redhat.com/errata/RHSA-2019:1946	vendor-advisory, x_refsource_REDHAT

Impacted products

	Vendor	Product	Version
	The Linux Foundation	kernel	Version: 4.18.x, 4.14.x, 3.10.x

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "providerMetadata": {
          "dateUpdated": "2024-08-05T09:38:13.035Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
          "shortName": "CVE"
        },
        "references": [
          {
            "name": "USN-3776-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3776-1/"
          },
          {
            "name": "USN-3776-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3776-2/"
          },
          {
            "name": "USN-3777-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3777-1/"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14633"
          },
          {
            "name": "USN-3775-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3775-1/"
          },
          {
            "tags": [
              "x_refsource_MISC",
              "x_transferred"
            ],
            "url": "https://seclists.org/oss-sec/2018/q3/270"
          },
          {
            "name": "[debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security update",
            "tags": [
              "mailing-list",
              "x_refsource_MLIST",
              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html"
          },
          {
            "name": "USN-3779-1",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3779-1/"
          },
          {
            "name": "105388",
            "tags": [
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              "x_refsource_BID",
              "x_transferred"
            ],
            "url": "http://www.securityfocus.com/bid/105388"
          },
          {
            "tags": [
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            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes\u0026id=8c39e2699f8acb2e29782a834e56306da24937fe"
          },
          {
            "name": "RHSA-2018:3666",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3666"
          },
          {
            "tags": [
              "x_refsource_CONFIRM",
              "x_transferred"
            ],
            "url": "https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes\u0026id=1816494330a83f2a064499d8ed2797045641f92c"
          },
          {
            "name": "DSA-4308",
            "tags": [
              "vendor-advisory",
              "x_refsource_DEBIAN",
              "x_transferred"
            ],
            "url": "https://www.debian.org/security/2018/dsa-4308"
          },
          {
            "name": "RHSA-2018:3651",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2018:3651"
          },
          {
            "name": "USN-3775-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3775-2/"
          },
          {
            "name": "USN-3777-2",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3777-2/"
          },
          {
            "name": "USN-3777-3",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3777-3/"
          },
          {
            "name": "RHSA-2019:1946",
            "tags": [
              "vendor-advisory",
              "x_refsource_REDHAT",
              "x_transferred"
            ],
            "url": "https://access.redhat.com/errata/RHSA-2019:1946"
          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "kernel",
          "vendor": "The Linux Foundation",
          "versions": [
            {
              "status": "affected",
              "version": "4.18.x, 4.14.x, 3.10.x"
            }
          ]
        }
      ],
      "datePublic": "2018-09-24T00:00:00",
      "descriptions": [
        {
          "lang": "en",
          "value": "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."
        }
      ],
      "metrics": [
        {
          "cvssV3_0": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "LOW",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H",
            "version": "3.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-121",
              "description": "CWE-121",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2019-07-30T12:06:06",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
      },
      "references": [
        {
          "name": "USN-3776-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3776-1/"
        },
        {
          "name": "USN-3776-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3776-2/"
        },
        {
          "name": "USN-3777-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3777-1/"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2018-14633"
        },
        {
          "name": "USN-3775-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3775-1/"
        },
        {
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://seclists.org/oss-sec/2018/q3/270"
        },
        {
          "name": "[debian-lts-announce] 20181003 [SECURITY] [DLA 1531-1] linux-4.9 security update",
          "tags": [
            "mailing-list",
            "x_refsource_MLIST"
          ],
          "url": "https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html"
        },
        {
          "name": "USN-3779-1",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3779-1/"
        },
        {
          "name": "105388",
          "tags": [
            "vdb-entry",
            "x_refsource_BID"
          ],
          "url": "http://www.securityfocus.com/bid/105388"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes\u0026id=8c39e2699f8acb2e29782a834e56306da24937fe"
        },
        {
          "name": "RHSA-2018:3666",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:3666"
        },
        {
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=4.19/scsi-fixes\u0026id=1816494330a83f2a064499d8ed2797045641f92c"
        },
        {
          "name": "DSA-4308",
          "tags": [
            "vendor-advisory",
            "x_refsource_DEBIAN"
          ],
          "url": "https://www.debian.org/security/2018/dsa-4308"
        },
        {
          "name": "RHSA-2018:3651",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2018:3651"
        },
        {
          "name": "USN-3775-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3775-2/"
        },
        {
          "name": "USN-3777-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3777-2/"
        },
        {
          "name": "USN-3777-3",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3777-3/"
        },
        {
          "name": "RHSA-2019:1946",
          "tags": [
            "vendor-advisory",
            "x_refsource_REDHAT"
          ],
          "url": "https://access.redhat.com/errata/RHSA-2019:1946"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2018-14633",
    "datePublished": "2018-09-25T00:00:00",
    "dateReserved": "2018-07-27T00:00:00",
    "dateUpdated": "2024-08-05T09:38:13.035Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

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.

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