cnvd-2022-19090
Vulnerability from cnvd
Title
libspf2缓冲区溢出漏洞
Description
libspf2是一个库，它允许电子邮件系统（例如 Sendmail、Postfix、Exim、Zmailer 和 MS Exchange）检查SPF 记录并确保电子邮件得到了来自它的域名的授权。 libspf2存在缓冲区溢出漏洞，该漏洞源于libspf2的SPF宏可触发缓冲区溢出，攻击者可利用该漏洞造成拒绝服务，并可能运行代码。
Severity
高
Patch Name
libspf2缓冲区溢出漏洞的补丁
Patch Description
libspf2是一个库，它允许电子邮件系统（例如 Sendmail、Postfix、Exim、Zmailer 和 MS Exchange）检查SPF 记录并确保电子邮件得到了来自它的域名的授权。 libspf2存在缓冲区溢出漏洞，该漏洞源于libspf2的SPF宏可触发缓冲区溢出，攻击者可利用该漏洞造成拒绝服务，并可能运行代码。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

厂商已发布了漏洞修复程序，请及时关注更新： https://vigilance.fr/vulnerability/libspf2-buffer-overflow-via-SPF-Macros-36117

Reference
https://www.debian.org/security/2021/dsa-4955 https://security-tracker.debian.org/tracker/CVE-2021-20314
Impacted products
Name
libspf2 libspf2 <=1.2.11
Show details on source website

To clipboard 

{
  "cves": {
    "cve": {
      "cveNumber": "CVE-2021-20314",
      "cveUrl": "https://nvd.nist.gov/vuln/detail/CVE-2021-20314"
    }
  },
  "description": "libspf2\u662f\u4e00\u4e2a\u5e93\uff0c\u5b83\u5141\u8bb8\u7535\u5b50\u90ae\u4ef6\u7cfb\u7edf\uff08\u4f8b\u5982 Sendmail\u3001Postfix\u3001Exim\u3001Zmailer \u548c MS Exchange\uff09\u68c0\u67e5SPF \u8bb0\u5f55\u5e76\u786e\u4fdd\u7535\u5b50\u90ae\u4ef6\u5f97\u5230\u4e86\u6765\u81ea\u5b83\u7684\u57df\u540d\u7684\u6388\u6743\u3002\n\nlibspf2\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8elibspf2\u7684SPF\u5b8f\u53ef\u89e6\u53d1\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff0c\u5e76\u53ef\u80fd\u8fd0\u884c\u4ee3\u7801\u3002",
  "formalWay": "\u5382\u5546\u5df2\u53d1\u5e03\u4e86\u6f0f\u6d1e\u4fee\u590d\u7a0b\u5e8f\uff0c\u8bf7\u53ca\u65f6\u5173\u6ce8\u66f4\u65b0\uff1a\r\nhttps://vigilance.fr/vulnerability/libspf2-buffer-overflow-via-SPF-Macros-36117",
  "isEvent": "\u901a\u7528\u8f6f\u786c\u4ef6\u6f0f\u6d1e",
  "number": "CNVD-2022-19090",
  "openTime": "2022-03-14",
  "patchDescription": "libspf2\u662f\u4e00\u4e2a\u5e93\uff0c\u5b83\u5141\u8bb8\u7535\u5b50\u90ae\u4ef6\u7cfb\u7edf\uff08\u4f8b\u5982 Sendmail\u3001Postfix\u3001Exim\u3001Zmailer \u548c MS Exchange\uff09\u68c0\u67e5SPF \u8bb0\u5f55\u5e76\u786e\u4fdd\u7535\u5b50\u90ae\u4ef6\u5f97\u5230\u4e86\u6765\u81ea\u5b83\u7684\u57df\u540d\u7684\u6388\u6743\u3002\r\n\r\nlibspf2\u5b58\u5728\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\uff0c\u8be5\u6f0f\u6d1e\u6e90\u4e8elibspf2\u7684SPF\u5b8f\u53ef\u89e6\u53d1\u7f13\u51b2\u533a\u6ea2\u51fa\uff0c\u653b\u51fb\u8005\u53ef\u5229\u7528\u8be5\u6f0f\u6d1e\u9020\u6210\u62d2\u7edd\u670d\u52a1\uff0c\u5e76\u53ef\u80fd\u8fd0\u884c\u4ee3\u7801\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": "libspf2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e\u7684\u8865\u4e01",
  "products": {
    "product": "libspf2 libspf2 \u003c=1.2.11"
  },
  "referenceLink": "https://www.debian.org/security/2021/dsa-4955\r\nhttps://security-tracker.debian.org/tracker/CVE-2021-20314",
  "serverity": "\u9ad8",
  "submitTime": "2021-09-08",
  "title": "libspf2\u7f13\u51b2\u533a\u6ea2\u51fa\u6f0f\u6d1e"
}


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