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USN-4800-1: Lynx vulnerabilities

15 March 2021

Several security issues were fixed in Lynx.

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Releases

Packages

  • lynx - classic non-graphical (text-mode) web browser

Details

It was discovered that Lynx incorrectly handled certain URLs. A remote attacker
could possibly use this issue to obtain sensitive information or other
unspecified impact. This issue only affected Ubuntu 16.04 ESM.
(CVE-2016-9179)

It was discovered that Lynx incorrectly handled certain HTML files. A remote
attacker could possibly use this issue to obtain sensitive information.
This issue only affected Ubuntu 16.04 ESM. (CVE-2017-1000211)

Thorsten Glaser discovered that Lynx mishandles the userinfo subcomponents of
a URI. An attacker monitoring the network could discover cleartext
credentials because they may appear in SNI data. (CVE-2021-38165)

Reduce your security exposure

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 20.04
Ubuntu 18.04
Ubuntu 16.04

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

References

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Further reading