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USN-4236-3: Libgcrypt vulnerability

28 January 2020

Libgcrypt could be made to expose sensitive information.

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Releases

Packages

Details

USN-4236-1 fixed a vulnerability in Libgcrypt. This update provides
the corresponding update for Ubuntu 12.04 ESM and Ubuntu 14.04 ESM.

Original advisory 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 14.04
Ubuntu 12.04

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

References

Related notices

  • USN-4236-2: libgcrypt20, libgcrypt20-udeb, libgcrypt11-dev, libgcrypt20-doc, libgcrypt20-dev
  • USN-4236-1: libgcrypt20, libgcrypt20-udeb, libgcrypt-mingw-w64-dev, libgcrypt11-dev, libgcrypt20-doc, libgcrypt20-dev

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Further reading