[USN-3555-1] w3m vulnerabilities

Leonidas S. Barbosa leo.barbosa at canonical.com
Thu Feb 1 16:08:18 UTC 2018

Ubuntu Security Notice USN-3555-1
February 01, 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


Several security issues were fixed in w3m.

Software Description:
- w3m: WWW browsable pager with excellent tables/frames support


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.

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

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

  CVE-2018-6196, CVE-2018-6197, CVE-2018-6198

Package Information:
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