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cvelistApacheCVELIST:CVE-2020-1935
HistoryFeb 24, 2020 - 9:11 p.m.

CVE-2020-1935

2020-02-2421:11:38
apache
www.cve.org
1

7.5 High

AI Score

Confidence

Low

0.002 Low

EPSS

Percentile

62.2%

In Apache Tomcat 9.0.0.M1 to 9.0.30, 8.5.0 to 8.5.50 and 7.0.0 to 7.0.99 the HTTP header parsing code used an approach to end-of-line parsing that allowed some invalid HTTP headers to be parsed as valid. This led to a possibility of HTTP Request Smuggling if Tomcat was located behind a reverse proxy that incorrectly handled the invalid Transfer-Encoding header in a particular manner. Such a reverse proxy is considered unlikely.

CNA Affected

[
  {
    "product": "Apache Tomcat",
    "vendor": "Apache",
    "versions": [
      {
        "status": "affected",
        "version": "Apache Tomcat 9.0.0.M1 to 9.0.30"
      },
      {
        "status": "affected",
        "version": "8.5.0 to 8.5.50"
      },
      {
        "status": "affected",
        "version": "7.0.0 to 7.0.99"
      }
    ]
  }
]

References