Ubuntu alert USN-5224-1 (ghostscript)

From:
             
 
Marc Deslauriers <marc.deslauriers@canonical.com>
To:
             
 
"ubuntu-security-announce@lists.ubuntu.com" <ubuntu-security-announce@lists.ubuntu.com>
Subject:
             
 
[USN-5224-1] Ghostscript vulnerabilities
Date:
             
 
Wed, 12 Jan 2022 08:29:31 -0500
Message-ID:
             
 
<37dad1e5-0dc7-0413-486f-47bbdfd2a336@canonical.com>
==========================================================================
Ubuntu Security Notice USN-5224-1
January 12, 2022

ghostscript vulnerabilities
==========================================================================

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 21.10
- Ubuntu 21.04
- Ubuntu 20.04 LTS
- Ubuntu 18.04 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 PostScript
files. If a user or automated system were tricked into processing a
specially crafted file, a remote attacker could possibly 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 21.10:
  ghostscript                     9.54.0~dfsg1-0ubuntu2.1
  libgs9                          9.54.0~dfsg1-0ubuntu2.1

Ubuntu 21.04:
  ghostscript                     9.53.3~dfsg-7ubuntu0.2
  libgs9                          9.53.3~dfsg-7ubuntu0.2

Ubuntu 20.04 LTS:
  ghostscript                     9.50~dfsg-5ubuntu4.5
  libgs9                          9.50~dfsg-5ubuntu4.5

Ubuntu 18.04 LTS:
  ghostscript                     9.26~dfsg+0-0ubuntu0.18.04.15
  libgs9                          9.26~dfsg+0-0ubuntu0.18.04.15

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

References:
  https://ubuntu.com/security/notices/USN-5224-1
  CVE-2021-45944, CVE-2021-45949

Package Information:
  https://launchpad.net/ubuntu/+source/ghostscript/9.54.0~d...
  https://launchpad.net/ubuntu/+source/ghostscript/9.53.3~d...
  https://launchpad.net/ubuntu/+source/ghostscript/9.50~dfs...
  https://launchpad.net/ubuntu/+source/ghostscript/9.26~dfs...

-- 
ubuntu-security-announce mailing list
ubuntu-security-announce@lists.ubuntu.com
Modify settings or unsubscribe at:
https://lists.ubuntu.com/mailman/listinfo/ubuntu-security...