USN-4339-1: OpenEXR vulnerabilities

openexr vulnerabilities

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

Ubuntu 20.04
Ubuntu 19.10
Ubuntu 18.04 LTS
Ubuntu 16.04 LTS

Summary

Several security issues were fixed in OpenEXR.

Software Description

openexr – tools for the OpenEXR image format

Details

Brandon Perry discovered that OpenEXR incorrectly handled certain malformed
EXR image files. If a user were tricked into opening a crafted EXR image
file, a remote attacker could cause a denial of service, or possibly
execute arbitrary code. This issue only applied to Ubuntu 20.04 LTS.
(CVE-2017-9111, CVE-2017-9113, CVE-2017-9115)

Tan Jie discovered that OpenEXR incorrectly handled certain malformed EXR
image files. If a user were tricked into opening a crafted EXR image file,
a remote attacker could cause a denial of service, or possibly execute
arbitrary code. This issue only applied to Ubuntu 20.04 LTS.
(CVE-2018-18444)

Samuel Groß discovered that OpenEXR incorrectly handled certain malformed
EXR image files. If a user were tricked into opening a crafted EXR image
file, a remote attacker could cause a denial of service, or possibly
execute arbitrary code. (CVE-2020-11758, CVE-2020-11759, CVE-2020-11760,
CVE-2020-11761, CVE-2020-11762, CVE-2020-11763, CVE-2020-11764)

It was discovered that OpenEXR incorrectly handled certain malformed EXR
image files. If a user were tricked into opening a crafted EXR image
file, a remote attacker could cause a denial of service. (CVE-2020-11765)

Update instructions

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

Ubuntu 20.04: libopenexr24 – 2.3.0-6ubuntu0.1; openexr – 2.3.0-6ubuntu0.1
Ubuntu 19.10: libopenexr23 – 2.2.1-4.1ubuntu1.1; openexr – 2.2.1-4.1ubuntu1.1
Ubuntu 18.04 LTS: libopenexr22 – 2.2.0-11.1ubuntu1.2; openexr – 2.2.0-11.1ubuntu1.2
Ubuntu 16.04 LTS: libopenexr22 – 2.2.0-10ubuntu2.2; openexr – 2.2.0-10ubuntu2.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References

Source: USN-4339-1: OpenEXR vulnerabilities

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