USN-3555-1: w3m vulnerabilities

1 February 2018

w3m vulnerabilities

A security issue affects these releases of Ubuntu and its derivatives:

  • Ubuntu 17.10
  • Ubuntu 16.04 LTS
  • Ubuntu 14.04 LTS

Summary

Several security issues were fixed in w3m.

Software Description

  • w3m - WWW browsable pager with excellent tables/frames support

Details

It was discovered that w3m incorrectly handled certain inputs. An attacker could possibly use this to cause a denial of service. (CVE-2018-6196, CVE-2018-6197)

It was discovered that w3m incorrectly handled temporary files. An attacker could possibly use this to overwrite arbitrary files. (CVE-2018-6198)

Update instructions

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

Ubuntu 17.10
w3m - 0.5.3-34ubuntu0.1
Ubuntu 16.04 LTS
w3m - 0.5.3-26ubuntu0.2
Ubuntu 14.04 LTS
w3m - 0.5.3-15ubuntu0.2

To update your system, please follow these instructions: https://wiki.ubuntu.com/Security/Upgrades.

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

References