MGASA-2019-0105 - Updated python-gnupg packages fix security vulnerability

Publication date: 07 Mar 2019
URL: https://advisories.mageia.org/MGASA-2019-0105.html
Type: security
Affected Mageia releases: 6
CVE: CVE-2019-6690

When symmetric encryption is used, data can be injected through the
passphrase property of the gnupg.GPG.encrypt() and gnupg.GPG.decrypt()
methods. The supplied passphrase is not validated for newlines, and the
library passes --passphrase-fd=0 to the gpg executable, which expects the
passphrase on the first line of stdin, and the ciphertext to be decrypted
or plaintext to be encrypted on subsequent lines. By supplying a passphrase
containing a newline an attacker can control/modify the ciphertext/plaintext
being decrypted/encrypted (CVE-2019-6690).

References:
- https://bugs.mageia.org/show_bug.cgi?id=24341
- - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6690

SRPMS:
- 6/core/python-gnupg-0.4.4-1.mga6

Mageia 2019-0105: python-gnupg security update

When symmetric encryption is used, data can be injected through the passphrase property of the gnupg.GPG.encrypt() and gnupg.GPG.decrypt() methods

Summary

When symmetric encryption is used, data can be injected through the passphrase property of the gnupg.GPG.encrypt() and gnupg.GPG.decrypt() methods. The supplied passphrase is not validated for newlines, and the library passes --passphrase-fd=0 to the gpg executable, which expects the passphrase on the first line of stdin, and the ciphertext to be decrypted or plaintext to be encrypted on subsequent lines. By supplying a passphrase containing a newline an attacker can control/modify the ciphertext/plaintext being decrypted/encrypted (CVE-2019-6690).

References

- https://bugs.mageia.org/show_bug.cgi?id=24341

- - https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2019-6690

Resolution

MGASA-2019-0105 - Updated python-gnupg packages fix security vulnerability

SRPMS

- 6/core/python-gnupg-0.4.4-1.mga6

Severity
Publication date: 07 Mar 2019
URL: https://advisories.mageia.org/MGASA-2019-0105.html
Type: security
CVE: CVE-2019-6690

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