CVE-2017-18926

Name	CVE-2017-18926
Description	raptor_xml_writer_start_element_common in raptor_xml_writer.c in Raptor RDF Syntax Library 2.0.15 miscalculates the maximum nspace declarations for the XML writer, leading to heap-based buffer overflows (sometimes seen in raptor_qname_format_as_xml).
Source	CVE (at NVD; CERT, LWN, oss-sec, fulldisc, bugtraq, EDB, Metasploit, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, Mageia, GitHub code/issues, web search, more)
References	DLA-2438-1, DSA-4785-1
NVD severity	medium
Debian Bugs	973889

Vulnerable and fixed packages

The table below lists information on source packages.

Source Package	Release	Version	Status
raptor2 (PTS)	stretch	2.0.14-1	vulnerable
	stretch (security)	2.0.14-1+deb9u1	fixed
	buster, buster (security)	2.0.14-1.1~deb10u1	fixed
	bullseye, sid	2.0.14-1.2	fixed

The information below is based on the following data on fixed versions.

Package	Type	Release	Fixed Version	Origin	Debian Bugs
raptor	source	(unstable)	(unfixed)
raptor2	source	stretch	2.0.14-1+deb9u1	DLA-2438-1
raptor2	source	buster	2.0.14-1.1~deb10u1	DSA-4785-1
raptor2	source	(unstable)	2.0.14-1.1		973889

Fixed by: https://github.com/dajobe/raptor/commit/590681e546cd9aa18d57dc2ea1858cb734a3863f
https://www.openwall.com/lists/oss-security/2017/06/07/1