=========================================================================Ubuntu Security Notice USN-5952-1
March 15, 2023

openjpeg2 vulnerabilities
=========================================================================
A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 18.04 LTS
- Ubuntu 16.04 ESM

Summary:

Several security issues were fixed in OpenJPEG.

Software Description:
- openjpeg2: JPEG 2000 image compression/decompression library

Details:

Sebastian Poeplau discovered that OpenJPEG incorrectly handled certain 
inputs.
If a user or an automated system were tricked into opening a specially 
crafted
input file, a remote attacker could possibly use this issue to cause a 
denial
of service or execute arbitrary code. This issue only affected Ubuntu 18.04
LTS. (CVE-2020-6851, CVE-2020-8112)

It was discovered that OpenJPEG incorrectly handled certain inputs. If a 
user
or an automated system were tricked into opening a specially crafted input
file, a remote attacker could possibly use this issue to cause a denial of
service or execute arbitrary code. This issue only affected Ubuntu 18.04 
LTS.
(CVE-2020-15389, CVE-2020-27814, CVE-2020-27823, CVE-2020-27824,
CVE-2020-27841, CVE-2020-27845)

It was discovered that OpenJPEG incorrectly handled certain inputs. If a 
user
or an automated system were tricked into opening a specially crafted input
file, a remote attacker could possibly use this issue to cause a denial of
service. (CVE-2020-27842, CVE-2020-27843)

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 18.04 LTS:
   libopenjp2-7                    2.3.0-2+deb10u2build0.18.04.1
   libopenjp3d7                    2.3.0-2+deb10u2build0.18.04.1
   libopenjpip7                    2.3.0-2+deb10u2build0.18.04.1

Ubuntu 16.04 ESM:
   libopenjp2-7                    2.1.2-1.1+deb9u6ubuntu0.1~esm3
   libopenjp3d7                    2.1.2-1.1+deb9u6ubuntu0.1~esm3
   libopenjpip7                    2.1.2-1.1+deb9u6ubuntu0.1~esm3

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

References:
   https://ubuntu.com/security/notices/USN-5952-1
   CVE-2020-15389, CVE-2020-27814, CVE-2020-27823, CVE-2020-27824,
   CVE-2020-27841, CVE-2020-27842, CVE-2020-27843, CVE-2020-27845,
   CVE-2020-6851, CVE-2020-8112

Package Information:
 
https://launchpad.net/ubuntu/+source/openjpeg2/2.3.0-2+deb10u2build0.18.04.1