Vulnerability-Lookup

CNVD-2015-05162

Vulnerability from cnvd - Published: 2015-08-10

Title

Linux MD驱动初始化内存泄露漏洞

Description

Linux kernel是一款开源的操作系统。 Linux kernel存在安全漏洞，当bitmap文件通过get_bitmap_file()请求设备，但bitmap禁用时，系统未能正确初始化请求缓冲区，本地攻击者可利用此漏洞获取内核内存中4095字节信息。

Severity

低

Patch Name

Linux MD驱动初始化内存泄露漏洞的补丁

Patch Description

Linux kernel是一款开源的操作系统。Linux kernel存在安全漏洞，当bitmap文件通过get_bitmap_file()请求设备，但bitmap禁用时，系统未能正确初始化请求缓冲区，本地攻击者可利用此漏洞获取内核内存中4095字节信息。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

用户可参考如下厂商提供的安全补丁以修复该漏洞： http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=77ba0569d4c8389c0a2162ab0c7c16a6f3b199e4

Reference

http://git.kernel.org/cgit/linux/kernel/git/next/linux-next.git/commit/?id=77ba0569d4c8389c0a2162ab0c7c16a6f3b199e4

Impacted products

Name
Linux Kernel

Show details on source website

JSON

To clipboard

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    "bid": {
      "bidNumber": "76066"
    }
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  "cves": {
    "cve": {
      "cveNumber": "CVE-2015-5697"
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  "number": "CNVD-2015-05162",
  "openTime": "2015-08-10",
  "patchDescription": "Linux kernel\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002Linux kernel\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u5f53bitmap\u6587\u4ef6\u901a\u8fc7get_bitmap_file()\u8bf7\u6c42\u8bbe\u5907\uff0c\u4f46bitmap\u7981\u7528\u65f6\uff0c\u7cfb\u7edf\u672a\u80fd\u6b63\u786e\u521d\u59cb\u5316\u8bf7\u6c42\u7f13\u51b2\u533a\uff0c\u672c\u5730\u653b\u51fb\u8005\u53ef\u5229\u7528\u6b64\u6f0f\u6d1e\u83b7\u53d6\u5185\u6838\u5185\u5b58\u4e2d4095\u5b57\u8282\u4fe1\u606f\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",
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  "serverity": "\u4f4e",
  "submitTime": "2015-08-08",
  "title": "Linux MD\u9a71\u52a8\u521d\u59cb\u5316\u5185\u5b58\u6cc4\u9732\u6f0f\u6d1e"
}

CVE-2015-5697 (GCVE-0-2015-5697)

Vulnerability from cvelistv5 – Published: 2015-08-31 10:00 – Updated: 2024-08-06 06:59

Summary

The get_bitmap_file function in drivers/md/md.c in the Linux kernel before 4.1.6 does not initialize a certain bitmap data structure, which allows local users to obtain sensitive information from kernel memory via a GET_BITMAP_FILE ioctl call.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

21 references

URL	Tags
http://www.ubuntu.com/usn/USN-2748-1	vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2751-1	vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2731-1	vendor-advisoryx_refsource_UBUNTU
https://github.com/torvalds/linux/commit/b6878d9e…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://www.openwall.com/lists/oss-security/2015/07/28/2	mailing-listx_refsource_MLIST
http://www.securityfocus.com/bid/76066	vdb-entryx_refsource_BID
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
http://www.ubuntu.com/usn/USN-2752-1	vendor-advisoryx_refsource_UBUNTU
https://bugzilla.redhat.com/show_bug.cgi?id=1249011	x_refsource_CONFIRM
http://www.debian.org/security/2015/dsa-3329	vendor-advisoryx_refsource_DEBIAN
http://www.ubuntu.com/usn/USN-2732-1	vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2749-1	vendor-advisoryx_refsource_UBUNTU
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.kernel.org/pub/linux/kernel/v4.x/Chang…	x_refsource_CONFIRM
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_CONFIRM
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://www.securitytracker.com/id/1033211	vdb-entryx_refsource_SECTRACK
http://www.ubuntu.com/usn/USN-2777-1	vendor-advisoryx_refsource_UBUNTU
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA

Date Public

2015-07-28 00:00

Show details on NVD website

JSON

To clipboard

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              "url": "https://bugzilla.redhat.com/show_bug.cgi?id=1249011"
            },
            {
              "name": "DSA-3329",
              "refsource": "DEBIAN",
              "url": "http://www.debian.org/security/2015/dsa-3329"
            },
            {
              "name": "USN-2732-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2732-1"
            },
            {
              "name": "USN-2749-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2749-1"
            },
            {
              "name": "FEDORA-2015-12908",
              "refsource": "FEDORA",
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163661.html"
            },
            {
              "name": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6",
              "refsource": "CONFIRM",
              "url": "http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.1.6"
            },
            {
              "name": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b6878d9e03043695dbf3fa1caa6dfc09db225b16",
              "refsource": "CONFIRM",
              "url": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b6878d9e03043695dbf3fa1caa6dfc09db225b16"
            },
            {
              "name": "FEDORA-2015-13396",
              "refsource": "FEDORA",
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/164137.html"
            },
            {
              "name": "FEDORA-2015-13391",
              "refsource": "FEDORA",
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/164193.html"
            },
            {
              "name": "1033211",
              "refsource": "SECTRACK",
              "url": "http://www.securitytracker.com/id/1033211"
            },
            {
              "name": "USN-2777-1",
              "refsource": "UBUNTU",
              "url": "http://www.ubuntu.com/usn/USN-2777-1"
            },
            {
              "name": "FEDORA-2015-12917",
              "refsource": "FEDORA",
              "url": "http://lists.fedoraproject.org/pipermail/package-announce/2015-August/163711.html"
            }
          ]
        }
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "8254265b-2729-46b6-b9e3-3dfca2d5bfca",
    "assignerShortName": "mitre",
    "cveId": "CVE-2015-5697",
    "datePublished": "2015-08-31T10:00:00.000Z",
    "dateReserved": "2015-07-29T00:00:00.000Z",
    "dateUpdated": "2024-08-06T06:59:03.845Z",
    "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.

Detection rules are retrieved from Rulezet.

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.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.