CVE-2019-13032

An issue was discovered in FlightCrew v0.9.2 and earlier. A NULL pointer dereference occurs in GetRelativePathToNcx() or GetRelativePathsToXhtmlDocuments() when a NULL pointer is passed to xc::XMLUri::isValidURI(). This affects third-party software (not Sigil) that uses FlightCrew as a library.

• CWE-476

• https://github.com/Sigil-Ebook/flightcrew/issues/53Issue Tracking, Third Party Advisory
• https://salvatoresecurity.com/fun-with-fuzzers-or-how-i-discovered-three-vulnerabilities-part-1-of-3/
• https://usn.ubuntu.com/4055-1/
• https://github.com/Sigil-Ebook/flightcrew/issues/53Issue Tracking, Third Party Advisory
• https://salvatoresecurity.com/fun-with-fuzzers-or-how-i-discovered-three-vulnerabilities-part-1-of-3/
• https://usn.ubuntu.com/4055-1/

Published

Jun 28, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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