==========================================================================
Ubuntu Security Notice USN-4469-1
August 24, 2020
ghostscript vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
– Ubuntu 20.04 LTS
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS
Summary:
Several security issues were fixed in Ghostscript.
Software Description:
– ghostscript: PostScript and PDF interpreter
Details:
It was discovered that Ghostscript incorrectly handled certain document
files. If a user or automated system were tricked into processing a
specially crafted file, a remote attacker could use this issue to cause
Ghostscript to crash, resulting in a denial of service, or possibly
execute arbitrary code.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 20.04 LTS:
ghostscript 9.50~dfsg-5ubuntu4.2
libgs9 9.50~dfsg-5ubuntu4.2
Ubuntu 18.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.18.04.13
libgs9 9.26~dfsg+0-0ubuntu0.18.04.13
Ubuntu 16.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.16.04.13
libgs9 9.26~dfsg+0-0ubuntu0.16.04.13
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/4469-1
CVE-2020-16287, CVE-2020-16288, CVE-2020-16289, CVE-2020-16290,
CVE-2020-16291, CVE-2020-16292, CVE-2020-16293, CVE-2020-16294,
CVE-2020-16295, CVE-2020-16296, CVE-2020-16297, CVE-2020-16298,
CVE-2020-16299, CVE-2020-16300, CVE-2020-16301, CVE-2020-16302,
CVE-2020-16303, CVE-2020-16304, CVE-2020-16305, CVE-2020-16306,
CVE-2020-16307, CVE-2020-16308, CVE-2020-16309, CVE-2020-16310,
CVE-2020-17538
Package Information:
https://launchpad.net/ubuntu/+source/ghostscript/9.50~dfsg-5ubuntu4.2
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.04.13
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.16.04.13
—–BEGIN PGP SIGNATURE—–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=js1H
—–END PGP SIGNATURE—–
—
