1. Ubuntu Security Notices
  2. USN-4775-1

USN-4775-1: Lighttpd vulnerabilities

Publication date

15 March 2021

Overview

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

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)

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)

Update instructions

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

Learn more about how to get the fixes.

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

Ubuntu Release Package Version
18.04 bionic lighttpd –  1.4.45-1ubuntu3.18.04.1+esm1  
16.04 xenial lighttpd –  1.4.35-4ubuntu2.1+esm1  
14.04 trusty lighttpd –  1.4.33-1+nmu2ubuntu2.1+esm1  

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References

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