cnvd - cnvd-2021-26206

cnvd-2021-26206

Vulnerability from cnvd

Title: GNU C Library存在未明漏洞（CNVD-2021-26206）

Description:

GNU C Library（glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。Library是其中的一个库。

GNU C Library (aka glibc) 2.2之前版本存在安全漏洞。该漏洞源于缺少关于删除树的根后未指定的tdelete返回值的声明，攻击者可利用该漏洞在开发人员未意识到的应用程序中访问悬空指针1999年以来的文档更新。

Severity: 高

Patch Name: GNU C Library存在未明漏洞（CNVD-2021-26206）的补丁

Patch Description:

GNU C Library（glibc，libc6）是一种按照LGPL许可协议发布的开源免费的C语言编译程序。Library是其中的一个库。

GNU C Library (aka glibc) 2.2之前版本存在安全漏洞。该漏洞源于缺少关于删除树的根后未指定的tdelete返回值的声明，攻击者可利用该漏洞在开发人员未意识到的应用程序中访问悬空指针1999年以来的文档更新。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://ftp.gnu.org/gnu/glibc/glibc-2.2.tar.gz

Reference: https://nvd.nist.gov/vuln/detail/CVE-1999-0199

Impacted products

Name
Gnu GNU C Library (aka glibc) <2.2

Show details on source website

JSON

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{
  "cves": {
    "cve": {
      "cveNumber": "CVE-1999-0199",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-1999-0199"
    }
  },
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  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1ahttps://ftp.gnu.org/gnu/glibc/glibc-2.2.tar.gz",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-26206",
  "openTime": "2021-04-09",
  "patchDescription": "GNU C Library\uff08glibc\uff0clibc6\uff09\u662f\u4e00\u79cd\u6309\u7167LGPL\u8bb8\u53ef\u534f\u8bae\u53d1\u5e03\u7684\u5f00\u6e90\u514d\u8d39\u7684C\u8bed\u8a00\u7f16\u8bd1\u7a0b\u5e8f\u3002Library\u662f\u5176\u4e2d\u7684\u4e00\u4e2a\u5e93\u3002\r\n\r\nGNU C Library (aka glibc) 2.2\u4e4b\u524d\u7248\u672c\u5b58\u5728\u5b89\u5168\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u7f3a\u5c11\u5173\u4e8e\u5220\u9664\u6811\u7684\u6839\u540e\u672a\u6307\u5b9a\u7684tdelete\u8fd4\u56de\u503c\u7684\u58f0\u660e\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u5728\u5f00\u53d1\u4eba\u5458\u672a\u610f\u8bc6\u5230\u7684\u5e94\u7528\u7a0b\u5e8f\u4e2d\u8bbf\u95ee\u60ac\u7a7a\u6307\u94881999\u5e74\u4ee5\u6765\u7684\u6587\u6863\u66f4\u65b0\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": "GNU C Library\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-26206\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Gnu GNU C Library (aka glibc) \u003c2.2"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-1999-0199",
  "serverity": "\u9ad8",
  "submitTime": "2020-10-23",
  "title": "GNU C Library\u5b58\u5728\u672a\u660e\u6f0f\u6d1e\uff08CNVD-2021-26206\uff09"
}

CVE-1999-0199 (GCVE-0-1999-0199)

Vulnerability from cvelistv5

Published

2020-10-06 12:49

Modified

2024-08-01 16:27

Severity ?

CWE

Summary

manual/search.texi in the GNU C Library (aka glibc) before 2.2 lacks a statement about the unspecified tdelete return value upon deletion of a tree's root, which might allow attackers to access a dangling pointer in an application whose developer was unaware of a documentation update from 1999.

References

▼	URL	Tags
	https://www.cee.studio/tdelete.html	x_refsource_MISC
	https://github.com/bminor/glibc/commit/2864e767053317538feafa815046fff89e5a16be#diff-94e8c502f255fdfc346df0e29fd4ef40	x_refsource_MISC
	https://ftp.gnu.org/gnu/glibc/glibc-2.2.tar.gz	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	n/a	n/a	Version: n/a

Show details on NVD website

JSON

To clipboard

{
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            "url": "https://www.cee.studio/tdelete.html"
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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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