USN-4775-1: Lighttpd vulnerabilities

15 March 2021

Lighttpd could be made to expose sensitive information over the network.

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Releases

Packages

  • lighttpd - fast webserver with minimal memory footprint

Details

It was discovered that Lighttpd did not properly sanitized the string used in
basic HTTP authentication method. A remote attacker could use this to inject
arbitrary log entries and maybe obtain sensitive information. This issue only
affected Ubuntu 14.04 ESM and Ubuntu 16.04 ESM. (CVE-2015-3200)

It was discovered that Lighttpd did not properly sanitized the string used in
alias. A remote attacker could use this to access the content of the directory
above the alias and obtain sensitive information. (CVE-2018-19052)

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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

After a standard system update you need to restart Lighttpd to make
all the necessary changes.

References

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Further reading