1. Ubuntu Security Notices
  2. USN-3964-1

USN-3964-1: python-gnupg vulnerabilities

Publication date

2 May 2019

Overview

Several security issues were fixed in python-gnupg

Releases

Packages

Details

Marcus Brinkmann discovered that GnuPG before 2.2.8 improperly handled certain
command line parameters. A remote attacker could use this to spoof the output of
GnuPG and cause unsigned e-mail to appear signed.
(CVE-2018-12020)

It was discovered that python-gnupg incorrectly handled the GPG passphrase. A
remote attacker could send a specially crafted passphrase that would allow them
to control the output of encryption and decryption operations.
(CVE-2019-6690)

Marcus Brinkmann discovered that GnuPG before 2.2.8 improperly handled certain
command line parameters. A remote attacker could use this to spoof the output of
GnuPG and cause unsigned e-mail to appear signed.
(CVE-2018-12020)

It was discovered that python-gnupg incorrectly handled the GPG passphrase. A
remote attacker could send a specially crafted passphrase that would allow them
to control the output of encryption and decryption operations.
(CVE-2019-6690)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
19.04 disco python-gnupg –  0.4.3-1ubuntu1.19.04.1
python3-gnupg –  0.4.3-1ubuntu1.19.04.1
18.10 cosmic python-gnupg –  0.4.1-1ubuntu1.18.10.1
python3-gnupg –  0.4.1-1ubuntu1.18.10.1
18.04 bionic python-gnupg –  0.4.1-1ubuntu1.18.04.1
python3-gnupg –  0.4.1-1ubuntu1.18.04.1

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References

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