USN-3555-2: w3m vulnerabilities

Ubuntu Security Notice USN-3555-2

1st February, 2018

w3m vulnerabilities

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

  • Ubuntu 12.04 LTS

Summary

Several security issues were fixed in w3m.

Software description

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

Details

USN-3555-2 fixed vulnerabilities in w3m. This update
provides the corresponding update for Ubuntu 12.04 ESM.
Original advisory 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 version:

Ubuntu 12.04 LTS:
w3m 0.5.3-5ubuntu1.3

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

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