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USN-4819-1: Leptonica vulnerabilities

15 March 2021

Several security issues were fixed in Leptonica.

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Releases

Packages

  • leptonlib - Leptonica image processing library

Details

It was discovered that Leptonica incorrectly handled path names. An
attacker could possibly use this issue to obtain sensitive information.
This issue only affected Ubuntu 16.04 ESM. (CVE-2017-18196)

It was discovered that Leptonica incorrectly handled certain input
arguments. An attacker could possibly use this issue to execute arbitrary
commands. (CVE-2018-3836)

It was discovered that Leptonica incorrectly handled input arguments. An
attacker could possibly use this issue to cause a denial of service or
other unspecified impact. (CVE-2018-7186)

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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.

Learn more about Ubuntu Pro

Update instructions

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

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