JDK-8207775 : Better management of CipherCore buffers
  • Type: Bug
  • Component: security-libs
  • Sub-Component: javax.crypto
  • Affected Version: 8u172
  • Priority: P3
  • Status: Closed
  • Resolution: Fixed
  • Submitted: 2018-07-18
  • Updated: 2019-03-19
  • Resolved: 2018-08-03
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JDK 11 JDK 8 Other
11.0.2Fixed 8u181Fixed openjdk7uFixed
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Description
The com.sun.crypto.provider.CipherCore class allocates temporary internal buffers for internal functionality. Some users are requesting that these buffers be cleared after use.
Comments
Removing JDK 11u fix request until JDK-8209862 is fully assessed.
05-09-2018

Performance issues reported via JDK-8209862
05-09-2018

Fix Request A useful fix to have in JDK 11 LTS. The JDK libraries should make best efforts to protect contents of crypto buffers and keystores. The patch involves tighening up crypto code so that buffer contents are deleted as soon as is practical. A test case for these fixes is not practical but I'd be happy to describe how to manually verify with SQE teams. Patches should apply cleanly.
23-08-2018