USN-3675-3: GnuPG vulnerability

18 June 2018

GnuPG could be made to incorrectly interpret the status of the cryptographic operation if it received specially crafted file.

Releases

Packages

  • gnupg - GNU privacy guard - a free PGP replacement

Details

USN-3675-1 fixed a vulnerability in GnuPG. This update provides
the corresponding update for Ubuntu 12.04 ESM.

Original advisory details:

Marcus Brinkmann discovered that during decryption or verification,
GnuPG did not properly filter out terminal sequences when reporting the
original filename. An attacker could use this to specially craft a file
that would cause an application parsing GnuPG output to incorrectly
interpret the status of the cryptographic operation reported by GnuPG.
(CVE-2018-12020)

Update instructions

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

Ubuntu 12.04

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

References

Related notices

  • USN-3675-1: gnupg-utils, gnupg-curl, gpg-wks-client, gpgv-udeb, gpg-agent, gnupg-agent, gpgv, gpgv2, gpgconf, gpg-wks-server, gpgv-win32, scdaemon, gnupg-l10n, gpgv-static, gpgsm, dirmngr, gnupg, gnupg2, gnupg-udeb, gpg
  • USN-3675-2: gpgsm, gpgv2, gnupg-agent, scdaemon, dirmngr, gnupg2, gpgv-udeb
  • USN-3964-1: python-gnupg, python3-gnupg