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Sigurnosni nedostaci programskog paketa openjpeg2

==========================================================================
Ubuntu Security Notice USN-4685-1
January 07, 2021

openjpeg2 vulnerabilities
==========================================================================

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

– Ubuntu 20.10
– Ubuntu 20.04 LTS

Summary:

Several security issues were fixed in OpenJPEG.

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

Details:

It was discovered that OpenJPEG incorrectly handled certain image data. An
attacker could use this issue to cause OpenJPEG to crash, leading to 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 20.10:
libopenjp2-7 2.3.1-1ubuntu4.20.10.1
libopenjp3d7 2.3.1-1ubuntu4.20.10.1
libopenjpip7 2.3.1-1ubuntu4.20.10.1

Ubuntu 20.04 LTS:
libopenjp2-7 2.3.1-1ubuntu4.20.04.1
libopenjp3d7 2.3.1-1ubuntu4.20.04.1
libopenjpip7 2.3.1-1ubuntu4.20.04.1

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

References:
https://usn.ubuntu.com/4685-1
CVE-2020-15389, CVE-2020-27814, CVE-2020-27823, CVE-2020-27824,
CVE-2020-27841, CVE-2020-27842, CVE-2020-27843, CVE-2020-27845

Package Information:
https://launchpad.net/ubuntu/+source/openjpeg2/2.3.1-1ubuntu4.20.10.1
https://launchpad.net/ubuntu/+source/openjpeg2/2.3.1-1ubuntu4.20.04.1

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