Vulnerability 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).
CVSS Score
HIGH
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Librdf | Raptor Rdf Syntax Library | 2.0.15 |
| Debian | Debian Linux | 9.0 |
| Fedoraproject | Fedora | 31 |
Related Weaknesses (CWE)
References
- http://www.openwall.com/lists/oss-security/2020/11/13/1Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/13/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/14/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/16/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/16/3Mailing ListThird Party Advisory
- https://github.com/LibreOffice/core/blob/master/external/redland/raptor/0001-CalPatchThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2020/11/msg00012.htmlMailing ListThird Party Advisory
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedorapro
- https://www.debian.org/security/2020/dsa-4785Third Party Advisory
- https://www.openwall.com/lists/oss-security/2017/06/07/1ExploitMailing ListPatch
- http://www.openwall.com/lists/oss-security/2020/11/13/1Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/13/2Mailing ListThird Party Advisory
- http://www.openwall.com/lists/oss-security/2020/11/14/2Mailing ListThird Party Advisory
FAQ
What is CVE-2017-18926?
CVE-2017-18926 is a vulnerability with a CVSS score of 7.1 (HIGH). 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 overflo...
How severe is CVE-2017-18926?
CVE-2017-18926 has been rated HIGH with a CVSS base score of 7.1/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2017-18926?
Check the references section above for vendor advisories and patch information. Affected products include: Librdf Raptor Rdf Syntax Library, Debian Debian Linux, Fedoraproject Fedora.