RHSA-2021:1842 - Security Advisory

Topic

An update for raptor2 is now available for Red Hat Enterprise Linux 8.

Red Hat Product Security has rated this update as having a security impact of Moderate. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

Raptor is the RDF Parser Toolkit for Redland that provides a set of standalone RDF parsers, generating triples from RDF/XML or N-Triples.

Security Fix(es):

• raptor: heap-based buffer overflows due to an error in calculating the maximum nspace declarations for the XML writer (CVE-2017-18926)
• raptor2: malformed input file can lead to a segfault due to an out of bounds array access in raptor_xml_writer_start_element_common (CVE-2020-25713)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Additional Changes:

For detailed information on changes in this release, see the Red Hat Enterprise Linux 8.4 Release Notes linked from the References section.

Solution

For details on how to apply this update, which includes the changes described in this advisory, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux for x86_64 8 x86_64
• Red Hat Enterprise Linux for Power, little endian 8 ppc64le
• Red Hat CodeReady Linux Builder for x86_64 8 x86_64
• Red Hat CodeReady Linux Builder for Power, little endian 8 ppc64le
• Red Hat CodeReady Linux Builder for ARM 64 8 aarch64
• Red Hat CodeReady Linux Builder for IBM z Systems 8 s390x

Fixes

• BZ - 1896120 - CVE-2017-18926 raptor: heap-based buffer overflows due to an error in calculating the maximum nspace declarations for the XML writer
• BZ - 1900685 - CVE-2020-25713 raptor2: malformed input file can lead to a segfault due to an out of bounds array access in raptor_xml_writer_start_element_common

CVEs

• CVE-2017-18926
• CVE-2020-25713

References

• https://access.redhat.com/security/updates/classification/#moderate
• https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/8.4_release_notes/