module: std
package: net/http
versions:
  - fixed: go1.4.3
description: |
    HTTP headers were not properly parsed, which allows remote attackers to
    conduct HTTP request smuggling attacks via a request that contains
    Content-Length and Transfer-Encoding header fields.
published: 2022-01-05T21:39:14Z
cves:
  - CVE-2015-5739
  - CVE-2015-5740
  - CVE-2015-5741
credit: Jed Denlea and Régis Leroy
symbols:
  - CanonicalMIMEHeaderKey
  - body.readLocked
  - canonicalMIMEHeaderKey
  - chunkWriter.writeHeader
  - fixLength
  - fixTransferEncoding
  - readTransfer
  - transferWriter.shouldSendContentLength
  - validHeaderFieldByte
links:
    pr: https://go.dev/cl/13148
    commit: https://go.googlesource.com/go/+/26049f6f9171d1190f3bbe05ec304845cfe6399f
    context:
      - https://go.dev/cl/11772
      - https://go.dev/cl/11810
      - https://go.dev/cl/12865
      - https://go.googlesource.com/go/+/117ddcb83d7f42d6aa72241240af99ded81118e9
      - https://go.googlesource.com/go/+/300d9a21583e7cf0149a778a0611e76ff7c6680f
      - https://go.googlesource.com/go/+/c2db5f4ccc61ba7df96a747e268a277b802cbb87
      - https://groups.google.com/g/golang-announce/c/iSIyW4lM4hY/m/ADuQR4DiDwAJ