Vulnerability-Lookup

CNVD-2018-20065

Vulnerability from cnvd - Published: 2018-09-29

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

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 – Updated: 2024-08-05 09:38

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.

Severity

7 (High)


                        
                          CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:H

CWE

CWE-121

Assigner

redhat redhat root

References

18 references

URL	Tags
https://usn.ubuntu.com/3776-1/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3776-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3777-1/	vendor-advisoryx_refsource_UBUNTU
https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2…	x_refsource_CONFIRM
https://usn.ubuntu.com/3775-1/	vendor-advisoryx_refsource_UBUNTU
https://seclists.org/oss-sec/2018/q3/270	x_refsource_MISC
https://lists.debian.org/debian-lts-announce/2018…	mailing-listx_refsource_MLIST
https://usn.ubuntu.com/3779-1/	vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/105388	vdb-entryx_refsource_BID
https://git.kernel.org/pub/scm/linux/kernel/git/m…	x_refsource_CONFIRM
https://access.redhat.com/errata/RHSA-2018:3666	vendor-advisoryx_refsource_REDHAT
https://git.kernel.org/pub/scm/linux/kernel/git/m…	x_refsource_CONFIRM
https://www.debian.org/security/2018/dsa-4308	vendor-advisoryx_refsource_DEBIAN
https://access.redhat.com/errata/RHSA-2018:3651	vendor-advisoryx_refsource_REDHAT
https://usn.ubuntu.com/3775-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3777-2/	vendor-advisoryx_refsource_UBUNTU
https://usn.ubuntu.com/3777-3/	vendor-advisoryx_refsource_UBUNTU
https://access.redhat.com/errata/RHSA-2019:1946	vendor-advisoryx_refsource_REDHAT

Impacted products

1 product

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

Date Public

2018-09-24 00:00

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "providerMetadata": {
          "dateUpdated": "2024-08-05T09:38:13.035Z",
          "orgId": "af854a3a-2127-422b-91ae-364da2661108",
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        "references": [
          {
            "name": "USN-3776-1",
            "tags": [
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              "x_refsource_UBUNTU",
              "x_transferred"
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            "url": "https://usn.ubuntu.com/3776-1/"
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          {
            "name": "USN-3776-2",
            "tags": [
              "vendor-advisory",
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              "x_transferred"
            ],
            "url": "https://usn.ubuntu.com/3776-2/"
          },
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            "name": "USN-3777-1",
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            ],
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            "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",
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              "x_transferred"
            ],
            "url": "https://lists.debian.org/debian-lts-announce/2018/10/msg00003.html"
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            "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=1816494330a83f2a064499d8ed2797045641f92c"
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            "url": "https://www.debian.org/security/2018/dsa-4308"
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            "tags": [
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            "name": "USN-3777-2",
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              "x_transferred"
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            "url": "https://usn.ubuntu.com/3777-2/"
          },
          {
            "name": "USN-3777-3",
            "tags": [
              "vendor-advisory",
              "x_refsource_UBUNTU",
              "x_transferred"
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            "url": "https://usn.ubuntu.com/3777-3/"
          },
          {
            "name": "RHSA-2019:1946",
            "tags": [
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              "x_refsource_REDHAT",
              "x_transferred"
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          }
        ],
        "title": "CVE Program Container"
      }
    ],
    "cna": {
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          "product": "kernel",
          "vendor": "The Linux Foundation",
          "versions": [
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          ]
        }
      ],
      "datePublic": "2018-09-24T00:00:00.000Z",
      "descriptions": [
        {
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          "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": [
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              "description": "CWE-121",
              "lang": "en",
              "type": "CWE"
            }
          ]
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      "providerMetadata": {
        "dateUpdated": "2019-07-30T12:06:06.000Z",
        "orgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
        "shortName": "redhat"
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          "name": "USN-3776-1",
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        },
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          "name": "USN-3776-2",
          "tags": [
            "vendor-advisory",
            "x_refsource_UBUNTU"
          ],
          "url": "https://usn.ubuntu.com/3776-2/"
        },
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          "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"
        },
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            "vendor-advisory",
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          ],
          "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"
        }
      ]
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  },
  "cveMetadata": {
    "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749",
    "assignerShortName": "redhat",
    "cveId": "CVE-2018-14633",
    "datePublished": "2018-09-25T00:00:00.000Z",
    "dateReserved": "2018-07-27T00:00:00.000Z",
    "dateUpdated": "2024-08-05T09:38:13.035Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.1"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

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Action not permitted

CNVD-2018-20065

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

Tags

Sightings

Nomenclature

Related by attack behaviour