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Servers and applications

CVE-2016-0736

In Apache HTTP Server versions 2.4.0 to 2.4.23, mod_session_crypto was encrypting its data/cookie using the configured ciphers with possibly either CBC or ECB modes of operation (AES256-CBC by default), hence no selectable or builtin authenticated encryption. This made it vulnerable to padding oracle attacks, particularly with CBC.

Severity
High 7.5
Published
27 Jul 2017
Last changed
17 Jun 2026
Added to UpHeron
17 Oct 2026
Sources
NVD

Affected software

SoftwareAffected versions
Apache HTTP ServerServers and applications · cpe:a:apache:http_server
  • Version 2.4.23
  • Version 2.4.22
  • Version 2.4.21
  • Version 2.4.20
All 17 release lines
  • Version 2.4.0
  • Version 2.4.1
  • Version 2.4.2
  • Version 2.4.3
  • Version 2.4.6
  • Version 2.4.7
  • Version 2.4.8
  • Version 2.4.9
  • Version 2.4.10
  • Version 2.4.12
  • Version 2.4.14
  • Version 2.4.16
  • Version 2.4.19
  • Version 2.4.20
  • Version 2.4.21
  • Version 2.4.22
  • Version 2.4.23

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2016-0736
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2016-0736