{
  "id": "openEuler-SA-2022-1637",
  "url": "https://www.openeuler.org/zh/security/security-bulletins/detail/?id=openEuler-SA-2022-1637",
  "title": "An update for nginx is now available for openEuler-20.03-LTS-SP1,openEuler-20.03-LTS-SP3 and openEuler-22.03-LTS",
  "severity": "High",
  "description": "NGINX is a free, open-source, high-performance HTTP server and reverse proxy, as well as an IMAP/POP3 proxy server.\r\n\r\nSecurity Fix(es):\nALPACA is an application layer protocol content confusion attack, exploiting TLS servers implementing different protocols but using compatible certificates, such as multi-domain or wildcard certificates. A MiTM attacker having access to victim's traffic at the TCP/IP layer can redirect traffic from one subdomain to another, resulting in a valid TLS session. This breaks the authentication of TLS and cross-protocol attacks may be possible where the behavior of one protocol service may compromise the other at the application layer.(CVE-2021-3618)",
  "cves": [
    {
      "id": "CVE-2021-3618",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-3618",
      "severity": "High"
    }
  ]
}