USN-4818-1: OpenCV vulnerabilities

28 September 2022

Several security issues were fixed in OpenCV.

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Releases

Packages

  • opencv - computer vision library

Details

It was discovered that OpenCV did not properly manage certain
objects, leading to a divide-by-zero. If a user were tricked into
loading a specially crafted file, a remote attacker could potentially use
this issue to cause a denial of service or possibly execute arbitrary
code. (CVE-2019-15939)

It was discovered that OpenCV did not properly manage certain files,
leading to an out of bounds read. If a user were tricked into loading
a specially crafted file, a remote attacker could potentially use this
issue to make OpenCV crash, resulting in a denial of service. This issue
was only fixed in Ubuntu 18.04 ESM. (CVE-2019-14491, CVE-2019-14492)

It was discovered that OpenCV did not properly manage certain XML data,
leading to a NULL pointer dereference. If a user were tricked into
loading a specially crafted file, a remote attacker could potentially use
this issue to make OpenCV crash, resulting in a denial of service. This
issue was only fixed in Ubuntu 14.04 ESM and Ubuntu 16.04 ESM.
(CVE-2019-14493)

It was discovered that OpenCV did not properly manage certain files,
leading to a heap-based buffer overflow. If a user were tricked into
loading a specially crafted file, a remote attacker could potentially use
this issue to cause a denial of service or possibly execute arbitrary code.
This issue only affected Ubuntu 18.04 ESM. (CVE-2017-18009)

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Ubuntu Pro provides ten-year security coverage to 25,000+ packages in Main and Universe repositories, and it is free for up to five machines.

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Update instructions

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

Ubuntu 18.04
Ubuntu 16.04
Ubuntu 14.04

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

References

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Further reading