Vulnerability-Lookup

CNVD-2016-02765

Vulnerability from cnvd - Published: 2016-05-05

Title

Linux kernel-table levels拒绝服务漏洞

Description

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 s390平台上的Linux kernel 4.5之前版本的fork实现过程中存在拒绝服务漏洞，该漏洞源于程序未能正确处理4个页表级别。本地攻击者可借助特制的应用程序利用该漏洞造成拒绝服务（系统崩溃）。

Severity

低

Patch Name

Linux kernel-table levels拒绝服务漏洞的补丁

Patch Description

Linux kernel是美国Linux基金会发布的操作系统Linux所使用的内核。 s390平台上的Linux kernel 4.5之前版本的fork实现过程中存在拒绝服务漏洞，该漏洞源于程序未能正确处理4个页表级别。本地攻击者可借助特制的应用程序利用该漏洞造成拒绝服务（系统崩溃）。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公告获取补丁以修复该漏洞： http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1

Impacted products

Name
Linux Kernel <4.5

Show details on source website

JSON

To clipboard

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2016-2143"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002 \r\n\r\ns390\u5e73\u53f0\u4e0a\u7684Linux kernel 4.5\u4e4b\u524d\u7248\u672c\u7684fork\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5904\u74064\u4e2a\u9875\u8868\u7ea7\u522b\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5e94\u7528\u7a0b\u5e8f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5d29\u6e83\uff09\u3002",
  "discovererName": "Adam Mari\u0026#353;",
  "formalWay": "\u7528\u6237\u53ef\u53c2\u8003\u5982\u4e0b\u5382\u5546\u63d0\u4f9b\u7684\u5b89\u5168\u516c\u544a\u83b7\u53d6\u8865\u4e01\u4ee5\u4fee\u590d\u8be5\u6f0f\u6d1e\uff1a\r\nhttp://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2016-02765",
  "openTime": "2016-05-05",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u53d1\u5e03\u7684\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002 \r\n\r\ns390\u5e73\u53f0\u4e0a\u7684Linux kernel 4.5\u4e4b\u524d\u7248\u672c\u7684fork\u5b9e\u73b0\u8fc7\u7a0b\u4e2d\u5b58\u5728\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7a0b\u5e8f\u672a\u80fd\u6b63\u786e\u5904\u74064\u4e2a\u9875\u8868\u7ea7\u522b\u3002\u672c\u5730\u653b\u51fb\u8005\u53ef\u501f\u52a9\u7279\u5236\u7684\u5e94\u7528\u7a0b\u5e8f\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff08\u7cfb\u7edf\u5d29\u6e83\uff09\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-table levels\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Linux Kernel \u003c4.5"
  },
  "referenceLink": "http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=3446c13b268af86391d06611327006b059b8bab1",
  "serverity": "\u4f4e",
  "submitTime": "2016-04-28",
  "title": "Linux kernel-table levels\u62d2\u7edd\u670d\u52a1\u6f0f\u6d1e"
}

CVE-2016-2143 (GCVE-0-2016-2143)

Vulnerability from cvelistv5 – Published: 2016-04-27 17:00 – Updated: 2024-08-05 23:17

Summary

The fork implementation in the Linux kernel before 4.5 on s390 platforms mishandles the case of four page-table levels, which allows local users to cause a denial of service (system crash) or possibly have unspecified other impact via a crafted application, related to arch/s390/include/asm/mmu_context.h and arch/s390/include/asm/pgalloc.h.

Severity

No CVSS data available.

CWE

Assigner

redhat redhat root

References

13 references

URL	Tags
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_CONFIRM
http://rhn.redhat.com/errata/RHSA-2016-2766.html	vendor-advisoryx_refsource_REDHAT
http://www.oracle.com/technetwork/topics/security…	x_refsource_CONFIRM
https://github.com/torvalds/linux/commit/3446c13b…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://security-tracker.debian.org/tracker/CVE-2…	x_refsource_CONFIRM
http://www.debian.org/security/2016/dsa-3607	vendor-advisoryx_refsource_DEBIAN
http://rhn.redhat.com/errata/RHSA-2016-1539.html	vendor-advisoryx_refsource_REDHAT
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE

Date Public

2016-04-27 00:00

Show details on NVD website

JSON

To clipboard

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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.