Several security issues were fixed in FlightCrew.
Mike Salvatore discovered that FlightCrew improperly handled certain malformed EPUB files. An attacker could potentially use this vulnerability to cause a denial of service. (CVE-2019-13032)
15 July 2019
A security issue affects these releases of Ubuntu and its derivatives:
Several security issues were fixed in FlightCrew.
Mike Salvatore discovered that FlightCrew improperly handled certain malformed EPUB files. An attacker could potentially use this vulnerability to cause a denial of service. (CVE-2019-13032)
Mike Salvatore discovered that FlightCrew mishandled certain malformed EPUB files. An attacker could use this vulnerability to write arbitrary files to the filesystem. (CVE-2019-13241)
Mike Salvatore discovered that the version of Zipios included in FlightCrew mishandled certain malformed ZIP files. An attacker could use this vulnerability to cause a denial of service or consume system resources. (CVE-2019-13453)
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.