cnvd-2019-42534
Vulnerability from cnvd
Title
Linux kernel信息泄露漏洞（CNVD-2019-42534）
Description
Linux kernel是一种计算机操作系统内核，以C语言和汇编语言写成，符合POSIX标准，按GNU通用公共许可证发行。 Linux kernel 5.3.12及更早版本存在信息泄露漏洞。该漏洞源于Linux kernel中的fs/btrfs/extent-tree.c中的__btrfs_free_extentt在特定ENOENT情况下会调用btrfs_print_leaf。攻击者可利用该漏洞通过dmesg程序获取有关寄存器值的敏感信息。
Severity
低
Formal description

厂商尚未提供漏洞修复方案，请关注厂商主页更新： https://www.kernel.org/

Reference
https://nvd.nist.gov/vuln/detail/CVE-2019-19039
Impacted products
Name
Linux Linux kernel <=5.3.12
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2019-19039",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2019-19039"
    }
  },
  "description": "Linux kernel\u662f\u4e00\u79cd\u8ba1\u7b97\u673a\u64cd\u4f5c\u7cfb\u7edf\u5185\u6838\uff0c\u4ee5C\u8bed\u8a00\u548c\u6c47\u7f16\u8bed\u8a00\u5199\u6210\uff0c\u7b26\u5408POSIX\u6807\u51c6\uff0c\u6309GNU\u901a\u7528\u516c\u5171\u8bb8\u53ef\u8bc1\u53d1\u884c\u3002\n\nLinux kernel 5.3.12\u53ca\u66f4\u65e9\u7248\u672c\u5b58\u5728\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\u3002\u8be5\u6f0f\u6d1e\u6e90\u4e8eLinux kernel\u4e2d\u7684fs/btrfs/extent-tree.c\u4e2d\u7684__btrfs_free_extentt\u5728\u7279\u5b9aENOENT\u60c5\u51b5\u4e0b\u4f1a\u8c03\u7528btrfs_print_leaf\u3002\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u901a\u8fc7dmesg\u7a0b\u5e8f\u83b7\u53d6\u6709\u5173\u5bc4\u5b58\u5668\u503c\u7684\u654f\u611f\u4fe1\u606f\u3002",
  "formalWay": "\u5382\u5546\u5c1a\u672a\u63d0\u4f9b\u6f0f\u6d1e\u4fee\u590d\u65b9\u6848\uff0c\u8bf7\u5173\u6ce8\u5382\u5546\u4e3b\u9875\u66f4\u65b0\uff1a\r\nhttps://www.kernel.org/",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2019-42534",
  "openTime": "2019-11-27",
  "products": {
    "product": "Linux Linux kernel \u003c=5.3.12"
  },
  "referenceLink": "https://nvd.nist.gov/vuln/detail/CVE-2019-19039",
  "serverity": "\u4f4e",
  "submitTime": "2019-11-21",
  "title": "Linux kernel\u4fe1\u606f\u6cc4\u9732\u6f0f\u6d1e\uff08CNVD-2019-42534\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.