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USN-4236-1: Libgcrypt vulnerability

13 January 2020

Libgcrypt could be made to expose sensitive information.

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Releases

Packages

Details

It was discovered that Libgcrypt was susceptible to a ECDSA timing attack.
An attacker could possibly use this attack to recover sensitive
information.

Reduce your security exposure

Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

Learn more about Ubuntu Pro

Update instructions

The problem can be corrected by updating your system to the following package versions:

Ubuntu 19.10
Ubuntu 19.04
Ubuntu 18.04

In general, a standard system update will make all the necessary changes.

References

Related notices

  • USN-4236-2: libgcrypt20-udeb, libgcrypt20-dev, libgcrypt20, libgcrypt20-doc, libgcrypt11-dev
  • USN-4236-3: libgcrypt11-udeb, libgcrypt11-doc, libgcrypt11, libgcrypt11-dev

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Further reading