==========================================================================
Ubuntu Security Notice USN-3675-3
June 18, 2018
gnupg vulnerability
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 12.04 ESM
Summary:
GnuPG could be made to incorrectly interpret the status of the
cryptographic operation if it received specially crafted file.
Software Description:
– 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 ESM:
gnupg 1.4.11-3ubuntu2.11
In general, a standard system update will make all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3675-3
https://usn.ubuntu.com/usn/usn-3675-1
CVE-2018-12020—–BEGIN PGP SIGNATURE—–
Version: GnuPG v2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=b6d1
—–END PGP SIGNATURE—–
—
