cnvd - cnvd-2022-06509

cnvd-2022-06509

Vulnerability from cnvd

Title: Linux kernel存在未明漏洞（CNVD-2022-06509）

Description:

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

Linux kernel存在安全漏洞，该漏洞源于损坏的计时器树导致lib/timerqueue.c中的timerqueue_add函数中缺少任务唤醒。攻击者可利用该漏洞造成拒绝服务。

Severity: 中

Patch Name: Linux kernel存在未明漏洞（CNVD-2022-06509）的补丁

Patch Description:

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

Linux kernel存在安全漏洞，该漏洞源于损坏的计时器树导致lib/timerqueue.c中的timerqueue_add函数中缺少任务唤醒。攻击者可利用该漏洞造成拒绝服务。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:

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://access.redhat.com/security/cve/cve-2021-20317

Reference: https://access.redhat.com/security/cve/cve-2021-20317

Impacted products

Name
Linux Linux kernel

Show details on source website

JSON

To clipboard

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  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-20317"
    }
  },
  "description": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\n\nLinux kernel\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u635f\u574f\u7684\u8ba1\u65f6\u5668\u6811\u5bfc\u81f4lib/timerqueue.c\u4e2d\u7684timerqueue_add\u51fd\u6570\u4e2d\u7f3a\u5c11\u4efb\u52a1\u5524\u9192\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\u3002",
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  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-06509",
  "openTime": "2022-01-25",
  "patchDescription": "Linux kernel\u662f\u7f8e\u56fdLinux\u57fa\u91d1\u4f1a\u7684\u5f00\u6e90\u64cd\u4f5c\u7cfb\u7edfLinux\u6240\u4f7f\u7528\u7684\u5185\u6838\u3002\r\n\r\nLinux kernel\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u635f\u574f\u7684\u8ba1\u65f6\u5668\u6811\u5bfc\u81f4lib/timerqueue.c\u4e2d\u7684timerqueue_add\u51fd\u6570\u4e2d\u7f3a\u5c11\u4efb\u52a1\u5524\u9192\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\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\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2022-06509\uff09\u7684\u8865\u4e01",
  "products": {
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  "referenceLink": "https://access.redhat.com/security/cve/cve-2021-20317",
  "serverity": "\u4e2d",
  "submitTime": "2021-09-27",
  "title": "Linux kernel\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2022-06509\uff09"
}

CVE-2021-20317 (GCVE-0-2021-20317)

Vulnerability from cvelistv5

Published

2021-09-27 10:34

Modified

2024-08-03 17:37

Severity ?

CWE

CWE-665

Summary

A flaw was found in the Linux kernel. A corrupted timer tree caused the task wakeup to be missing in the timerqueue_add function in lib/timerqueue.c. This flaw allows a local attacker with special user privileges to cause a denial of service, slowing and eventually stopping the system while running OSP.

References

▼	URL	Tags
	https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/commit/?id=511885d7061eda3eb1faf3f57dcc936ff75863f1	x_refsource_MISC
	https://bugzilla.redhat.com/show_bug.cgi?id=2005258	x_refsource_MISC
	https://lists.debian.org/debian-lts-announce/2021/12/msg00012.html	mailing-list, x_refsource_MLIST
	https://lists.debian.org/debian-lts-announce/2022/03/msg00012.html	mailing-list, x_refsource_MLIST
	https://www.debian.org/security/2022/dsa-5096	vendor-advisory, x_refsource_DEBIAN
	https://cert-portal.siemens.com/productcert/pdf/ssa-222547.pdf	x_refsource_CONFIRM

Impacted products

	Vendor	Product	Version
	n/a	kernel	Version: Kernel 5.3 rc1

Show details on NVD website

JSON

To clipboard

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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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