Vulnerability-Lookup

CNVD-2015-04952

Vulnerability from cnvd - Published: 2015-07-21

Title

Linux kvm_apic_has_events()函数空指针引用漏洞

Description

Linux Kernel是一款开源的操作系统。 Linux Kernel kvm_apic_has_events()函数存在空指针引用漏洞，允许可访问/dev/kvm的用户使系统崩溃。

Severity

中

Patch Name

Linux kvm_apic_has_events()函数空指针引用漏洞的补丁

Patch Description

Linux Kernel是一款开源的操作系统。Linux Kernel kvm_apic_has_events()函数存在空指针引用漏洞，允许可访问/dev/kvm的用户使系统崩溃。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/arch/x86/kvm/lapic.h?id=ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009

Reference

http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/x86/kvm/lapic.h?id=ce40cd3fc7fa40a6119e5fe6c0f2bc0eb4541009

Impacted products

Name
Linux Kernel

Show details on source website

JSON

To clipboard

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  "number": "CNVD-2015-04952",
  "openTime": "2015-07-21",
  "patchDescription": "Linux Kernel\u662f\u4e00\u6b3e\u5f00\u6e90\u7684\u64cd\u4f5c\u7cfb\u7edf\u3002Linux Kernel kvm_apic_has_events()\u51fd\u6570\u5b58\u5728\u7a7a\u6307\u9488\u5f15\u7528\u6f0f\u6d1e\uff0c\u5141\u8bb8\u53ef\u8bbf\u95ee/dev/kvm\u7684\u7528\u6237\u4f7f\u7cfb\u7edf\u5d29\u6e83\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": "\u4e2d",
  "submitTime": "2015-07-18",
  "title": "Linux kvm_apic_has_events()\u51fd\u6570\u7a7a\u6307\u9488\u5f15\u7528\u6f0f\u6d1e"
}

CVE-2015-4692 (GCVE-0-2015-4692)

Vulnerability from cvelistv5 – Published: 2015-07-27 10:00 – Updated: 2024-08-06 06:18

Summary

The kvm_apic_has_events function in arch/x86/kvm/lapic.h in the Linux kernel through 4.1.3 allows local users to cause a denial of service (NULL pointer dereference and system crash) or possibly have unspecified other impact by leveraging /dev/kvm access for an ioctl call.

Severity

No CVSS data available.

CWE

Assigner

mitre mitre root

References

16 references

URL	Tags
http://www.openwall.com/lists/oss-security/2015/06/21/1	mailing-listx_refsource_MLIST
http://www.ubuntu.com/usn/USN-2680-1	vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2682-1	vendor-advisoryx_refsource_UBUNTU
https://bugzilla.redhat.com/show_bug.cgi?id=1230770	x_refsource_CONFIRM
https://github.com/torvalds/linux/commit/ce40cd3f…	x_refsource_CONFIRM
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://www.debian.org/security/2015/dsa-3329	vendor-advisoryx_refsource_DEBIAN
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://www.ubuntu.com/usn/USN-2684-1	vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2681-1	vendor-advisoryx_refsource_UBUNTU
http://www.ubuntu.com/usn/USN-2683-1	vendor-advisoryx_refsource_UBUNTU
http://www.securityfocus.com/bid/75142	vdb-entryx_refsource_BID
http://git.kernel.org/cgit/linux/kernel/git/torva…	x_refsource_CONFIRM
http://www.securitytracker.com/id/1032798	vdb-entryx_refsource_SECTRACK
http://lists.fedoraproject.org/pipermail/package-…	vendor-advisoryx_refsource_FEDORA

Date Public

2015-06-20 00:00

Show details on NVD website

JSON

To clipboard

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Sightings

Author	Source	Type	Date	Other

Nomenclature

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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.
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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-2015-04952

CVE-2015-4692 (GCVE-0-2015-4692)

Tags

Sightings

Nomenclature

Related by attack behaviour