CVE-2017-18926
5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:P/A:P
7.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
6.7 Medium
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
75.1%
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).
Affected configurations
| CPE | Name | Operator | Version |
|---|---|---|---|
| librdf:raptor_rdf_syntax_library | librdf raptor rdf syntax library | eq | 2.0.15 |
References
www.openwall.com/lists/oss-security/2020/11/13/1
www.openwall.com/lists/oss-security/2020/11/13/2
www.openwall.com/lists/oss-security/2020/11/14/2
www.openwall.com/lists/oss-security/2020/11/16/2
www.openwall.com/lists/oss-security/2020/11/16/3
github.com/LibreOffice/core/blob/master/external/redland/raptor/0001-Calcualte-max-nspace-declarations-correctly-for-XML-.patch.1
lists.debian.org/debian-lts-announce/2020/11/msg00012.html
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RD67AVORGQXORPWNYYUHCH6YPPT6CI4O/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/RVHFYQDMVEBICIL4DBAGRRLPUR4QYWMV/
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WDZRNM45VPTQF2BKRWG4YRCHJGQ2L7NS/
www.debian.org/security/2020/dsa-4785
www.openwall.com/lists/oss-security/2017/06/07/1
Related
5.8 Medium
CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:N/I:P/A:P
7.1 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
LOW
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:H
6.7 Medium
AI Score
Confidence
High
0.004 Low
EPSS
Percentile
75.1%