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Ubuntu Security Notice USN-4055-1
July 15, 2019

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

– Ubuntu 19.04
– Ubuntu 18.10
– Ubuntu 18.04 LTS
– Ubuntu 16.04 LTS

Summary:

Several security issues were fixed in FlightCrew.

Software Description:
– flightcrew: C++ epub validator and plugin for Sigil

Details:

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)

Update instructions:

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

Ubuntu 19.04:
flightcrew 0.7.2+dfsg-13ubuntu0.19.04.1
libflightcrew0v5 0.7.2+dfsg-13ubuntu0.19.04.1

Ubuntu 18.10:
flightcrew 0.7.2+dfsg-12ubuntu0.1
libflightcrew0v5 0.7.2+dfsg-12ubuntu0.1

Ubuntu 18.04 LTS:
flightcrew 0.7.2+dfsg-10ubuntu0.1
libflightcrew0v5 0.7.2+dfsg-10ubuntu0.1

Ubuntu 16.04 LTS:
flightcrew 0.7.2+dfsg-6ubuntu0.1
libflightcrew0v5 0.7.2+dfsg-6ubuntu0.1

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

References:
https://usn.ubuntu.com/4055-1
CVE-2019-13032, CVE-2019-13241, CVE-2019-13453

Package Information:
https://launchpad.net/ubuntu/+source/flightcrew/0.7.2+dfsg-13ubuntu0.19.04.1
https://launchpad.net/ubuntu/+source/flightcrew/0.7.2+dfsg-12ubuntu0.1
https://launchpad.net/ubuntu/+source/flightcrew/0.7.2+dfsg-10ubuntu0.1
https://launchpad.net/ubuntu/+source/flightcrew/0.7.2+dfsg-6ubuntu0.1

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