cnvd-2021-92546
Vulnerability from cnvd
Title
BlueZ资源管理错误漏洞（CNVD-2021-92546）
Description
BlueZ是一款使用C语言编写的蓝牙协议堆栈，它主要用于提供对核心蓝牙层和协议的支持。 BlueZ存在资源管理错误漏洞，该漏洞源于在受影响的版本中，sdp的cstate alloc buf中存在一个漏洞，它分配的内存总是挂起在cstate单链表中并且不会被释放，随着时间的推移这将导致内存泄漏。攻击者可利用该漏洞不断发送sdp包造成的，最终可能导致目标设备的服务崩溃。
Severity
低
Patch Name
BlueZ资源管理错误漏洞（CNVD-2021-92546）的补丁
Patch Description
BlueZ是一款使用C语言编写的蓝牙协议堆栈，它主要用于提供对核心蓝牙层和协议的支持。 BlueZ存在资源管理错误漏洞，该漏洞源于在受影响的版本中，sdp的cstate alloc buf中存在一个漏洞，它分配的内存总是挂起在cstate单链表中并且不会被释放，随着时间的推移这将导致内存泄漏。攻击者可利用该漏洞不断发送sdp包造成的，最终可能导致目标设备的服务崩溃。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

目前厂商已发布升级补丁以修复漏洞，补丁获取链接： https://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq

Reference
https://nvd.nist.gov/vuln/detail/CVE-2021-41229
Impacted products
Name
Bluez Bluez 5.58
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-41229"
    }
  },
  "description": "BlueZ\u662f\u4e00\u6b3e\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u84dd\u7259\u534f\u8bae\u5806\u6808\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u63d0\u4f9b\u5bf9\u6838\u5fc3\u84dd\u7259\u5c42\u548c\u534f\u8bae\u7684\u652f\u6301\u3002\n\nBlueZ\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u53d7\u5f71\u54cd\u7684\u7248\u672c\u4e2d\uff0csdp\u7684cstate alloc buf\u4e2d\u5b58\u5728\u4e00\u4e2a\u6f0f\u6d1e\uff0c\u5b83\u5206\u914d\u7684\u5185\u5b58\u603b\u662f\u6302\u8d77\u5728cstate\u5355\u94fe\u8868\u4e2d\u5e76\u4e14\u4e0d\u4f1a\u88ab\u91ca\u653e\uff0c\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u8fd9\u5c06\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4e0d\u65ad\u53d1\u9001sdp\u5305\u9020\u6210\u7684\uff0c\u6700\u7ec8\u53ef\u80fd\u5bfc\u81f4\u76ee\u6807\u8bbe\u5907\u7684\u670d\u52a1\u5d29\u6e83\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8865\u4e01\u83b7\u53d6\u94fe\u63a5\uff1a\r\nhttps://github.com/bluez/bluez/security/advisories/GHSA-3fqg-r8j5-f5xq",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-92546",
  "openTime": "2021-11-30",
  "patchDescription": "BlueZ\u662f\u4e00\u6b3e\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u84dd\u7259\u534f\u8bae\u5806\u6808\uff0c\u5b83\u4e3b\u8981\u7528\u4e8e\u63d0\u4f9b\u5bf9\u6838\u5fc3\u84dd\u7259\u5c42\u548c\u534f\u8bae\u7684\u652f\u6301\u3002\r\n\r\nBlueZ\u5b58\u5728\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5728\u53d7\u5f71\u54cd\u7684\u7248\u672c\u4e2d\uff0csdp\u7684cstate alloc buf\u4e2d\u5b58\u5728\u4e00\u4e2a\u6f0f\u6d1e\uff0c\u5b83\u5206\u914d\u7684\u5185\u5b58\u603b\u662f\u6302\u8d77\u5728cstate\u5355\u94fe\u8868\u4e2d\u5e76\u4e14\u4e0d\u4f1a\u88ab\u91ca\u653e\uff0c\u968f\u7740\u65f6\u95f4\u7684\u63a8\u79fb\u8fd9\u5c06\u5bfc\u81f4\u5185\u5b58\u6cc4\u6f0f\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u4e0d\u65ad\u53d1\u9001sdp\u5305\u9020\u6210\u7684\uff0c\u6700\u7ec8\u53ef\u80fd\u5bfc\u81f4\u76ee\u6807\u8bbe\u5907\u7684\u670d\u52a1\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",
  "patchName": "BlueZ\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-92546\uff09\u7684\u8865\u4e01",
  "products": {
    "product": "Bluez Bluez 5.58"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-41229",
  "serverity": "\u4f4e",
  "submitTime": "2021-11-16",
  "title": "BlueZ\u8d44\u6e90\u7ba1\u7406\u9519\u8bef\u6f0f\u6d1e\uff08CNVD-2021-92546\uff09"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




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.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • 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.