Several security issues were fixed in w3m.
USN-3555-2 fixed vulnerabilities in w3m. This update provides the corresponding update for Ubuntu 12.04 ESM. Original advisory details:
1 February 2018
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in w3m.
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)
The problem can be corrected by updating your system to the following package versions:
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.