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AUSCERT External Security Bulletin Redistribution
ESB-2018.3720.2
Ghostscript vulnerabilities
7 December 2018
===========================================================================
AusCERT Security Bulletin Summary
---------------------------------
Product: ghostscript
Publisher: Ubuntu
Operating System: Ubuntu
Impact/Access: Execute Arbitrary Code/Commands -- Remote/Unauthenticated
Access Privileged Data -- Remote/Unauthenticated
Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2018-19477 CVE-2018-19476 CVE-2018-19475
CVE-2018-19409
Reference: ESB-2018.3701
ESB-2018.3688
Original Bulletin:
http://www.ubuntu.com/usn/usn-3831-1
http://www.ubuntu.com/usn/usn-3831-2
Comment: This bulletin contains two (2) Ubuntu security advisories.
Revision History: December 7 2018: Added USN-3831-2 featuring a regression fix
November 30 2018: Initial Release
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==========================================================================
Ubuntu Security Notice USN-3831-1
November 29, 2018
ghostscript vulnerabilities
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 18.10
- - Ubuntu 18.04 LTS
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS
Summary:
Several security issues were fixed in Ghostscript.
Software Description:
- - ghostscript: PostScript and PDF interpreter
Details:
It was discovered that Ghostscript contained multiple security issues. If a
user or automated system were tricked into processing a specially crafted
file, a remote attacker could possibly use these issues to access arbitrary
files, execute arbitrary code, or cause a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
ghostscript 9.26~dfsg+0-0ubuntu0.18.10.1
libgs9 9.26~dfsg+0-0ubuntu0.18.10.1
Ubuntu 18.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.18.04.1
libgs9 9.26~dfsg+0-0ubuntu0.18.04.1
Ubuntu 16.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.16.04.1
libgs9 9.26~dfsg+0-0ubuntu0.16.04.1
Ubuntu 14.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.14.04.1
libgs9 9.26~dfsg+0-0ubuntu0.14.04.1
This update uses a new upstream release, which includes additional bug
fixes. In general, a standard system update will make all the necessary
changes.
References:
https://usn.ubuntu.com/usn/usn-3831-1
CVE-2018-19409, CVE-2018-19475, CVE-2018-19476, CVE-2018-19477
Package Information:
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.10.1
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.04.1
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.16.04.1
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.14.04.1
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==========================================================================
Ubuntu Security Notice USN-3831-2
December 06, 2018
ghostscript regression
==========================================================================
A security issue affects these releases of Ubuntu and its derivatives:
- - Ubuntu 18.10
- - Ubuntu 18.04 LTS
- - Ubuntu 16.04 LTS
- - Ubuntu 14.04 LTS
Summary:
USN-3831-1 introduced a regression in Ghostscript.
Software Description:
- - ghostscript: PostScript and PDF interpreter
Details:
USN-3831-1 fixed vulnerabilities in Ghostscript. Ghostscript 9.26
introduced a regression when used with certain options. This update fixes
the problem.
Original advisory details:
It was discovered that Ghostscript contained multiple security issues. If a
user or automated system were tricked into processing a specially crafted
file, a remote attacker could possibly use these issues to access arbitrary
files, execute arbitrary code, or cause a denial of service.
Update instructions:
The problem can be corrected by updating your system to the following
package versions:
Ubuntu 18.10:
ghostscript 9.26~dfsg+0-0ubuntu0.18.10.3
libgs9 9.26~dfsg+0-0ubuntu0.18.10.3
Ubuntu 18.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.18.04.3
libgs9 9.26~dfsg+0-0ubuntu0.18.04.3
Ubuntu 16.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.16.04.3
libgs9 9.26~dfsg+0-0ubuntu0.16.04.3
Ubuntu 14.04 LTS:
ghostscript 9.26~dfsg+0-0ubuntu0.14.04.3
libgs9 9.26~dfsg+0-0ubuntu0.14.04.3
In general, a standard system update will make all the necessary changes.
References:
https://usn.ubuntu.com/usn/usn-3831-2
https://usn.ubuntu.com/usn/usn-3831-1
https://launchpad.net/bugs/1806517
Package Information:
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.10.3
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.18.04.3
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.16.04.3
https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfsg+0-0ubuntu0.14.04.3
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