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USN-3689-1: Libgcrypt vulnerability

19 June 2018

Libgcrypt could be made to expose 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.

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Releases

Packages

Details

Keegan Ryan discovered that Libgcrypt was susceptible to a side-channel
attack. A local attacker could possibly use this attack to recover ECDSA
private keys.

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 18.04
Ubuntu 17.10
Ubuntu 16.04
Ubuntu 14.04

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

References

Related notices

  • USN-3692-1: libssl1.0-dev, libssl1.0.0-udeb, libssl1.1, libssl-doc, libssl1.1-udeb, openssl, openssl1.0, libcrypto1.1-udeb, libcrypto1.0.0-udeb, libssl1.0.0, libssl-dev
  • USN-3692-2: openssl, libssl1.0.0
  • USN-3689-2: libgcrypt11
  • USN-3850-1: libnss3-dev, libnss3-1d, libnss3, nss, libnss3-nssdb, libnss3-tools
  • USN-3850-2: nss, libnss3