cnvd-2021-53907
Vulnerability from cnvd
Title
XScreenSaver缓冲区溢出漏洞
Description
XScreenSaver是一款使用C语言编写的开源屏幕保护程序。 XScreenSaver存在缓冲区错误漏洞，该漏洞源于当应用有超过10个可断开的视频输出时，update_screen_layout()会引起缓冲区溢出。攻击者可通过该漏洞绕过身份验证机制。
Severity
低
Patch Name
XScreenSaver缓冲区溢出漏洞的补丁
Patch Description
XScreenSaver是一款使用C语言编写的开源屏幕保护程序。 XScreenSaver存在缓冲区错误漏洞，该漏洞源于当应用有超过10个可断开的视频输出时，update_screen_layout()会引起缓冲区溢出。攻击者可通过该漏洞绕过身份验证机制。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，详情请关注厂商主页： https://github.com/QubesOS/qubes-issues/issues/6595

Reference
https://nvd.nist.gov/vuln/detail/CVE-2021-34557
Impacted products
Name
Xscreensaver Xscreensaver 5.45
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-34557"
    }
  },
  "description": "XScreenSaver\u662f\u4e00\u6b3e\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u5f00\u6e90\u5c4f\u5e55\u4fdd\u62a4\u7a0b\u5e8f\u3002\n\nXScreenSaver\u5b58\u5728\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u5e94\u7528\u6709\u8d85\u8fc710\u4e2a\u53ef\u65ad\u5f00\u7684\u89c6\u9891\u8f93\u51fa\u65f6\uff0cupdate_screen_layout()\u4f1a\u5f15\u8d77\u7f13\u51b2\u533a\u6ea2\u51fa\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u673a\u5236\u3002",
  "formalWay": "\u76ee\u524d\u5382\u5546\u5df2\u53d1\u5e03\u5347\u7ea7\u8865\u4e01\u4ee5\u4fee\u590d\u6f0f\u6d1e\uff0c\u8be6\u60c5\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\uff1a\r\nhttps://github.com/QubesOS/qubes-issues/issues/6595",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2021-53907",
  "openTime": "2021-07-23",
  "patchDescription": "XScreenSaver\u662f\u4e00\u6b3e\u4f7f\u7528C\u8bed\u8a00\u7f16\u5199\u7684\u5f00\u6e90\u5c4f\u5e55\u4fdd\u62a4\u7a0b\u5e8f\u3002\r\n\r\nXScreenSaver\u5b58\u5728\u7f13\u51b2\u533a\u9519\u8bef\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8e\u5f53\u5e94\u7528\u6709\u8d85\u8fc710\u4e2a\u53ef\u65ad\u5f00\u7684\u89c6\u9891\u8f93\u51fa\u65f6\uff0cupdate_screen_layout()\u4f1a\u5f15\u8d77\u7f13\u51b2\u533a\u6ea2\u51fa\u3002\u653b\u51fb\u8005\u53ef\u901a\u8fc7\u8be5\u6f0f\u6d1e\u7ed5\u8fc7\u8eab\u4efd\u9a8c\u8bc1\u673a\u5236\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": "XScreenSaver\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "Xscreensaver Xscreensaver 5.45"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2021-34557",
  "serverity": "\u4f4e",
  "submitTime": "2021-06-12",
  "title": "XScreenSaver\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}


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