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Red Hat Security Advisory
Synopsis: Low: nbdkit security and bug fix update
Advisory ID: RHSA-2020:1167-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2020:1167
Issue date: 2020-03-31
CVE Names: CVE-2019-14850
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1. Summary:
An update for nbdkit is now available for Red Hat Enterprise Linux 7.
Red Hat Product Security has rated this update as having a security impact
of Low. 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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Server (v. 7) – x86_64
Red Hat Enterprise Linux Server Optional (v. 7) – x86_64
3. Description:
Network Block Device (NBD) is a protocol for accessing hard disks and other
disk-like devices over the network. The nbdkit toolkit utilizes NBD to
create servers with minimal dependencies. The package contains plug-in
support for the C and Python programming languages.
Security Fix(es):
* nbdkit: denial of service due to premature opening of back-end connection
(CVE-2019-14850)
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 7.8 Release Notes linked from the References section.
4. 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
5. Bugs fixed (https://bugzilla.redhat.com/):
1724242 – Should ignore the ext2fs libraries during building rpms from nbdkit src package
1757258 – CVE-2019-14850 nbdkit: denial of service due to premature opening of back-end connection
6. Package List:
Red Hat Enterprise Linux Server (v. 7):
Source:
nbdkit-1.8.0-3.el7.src.rpm
x86_64:
nbdkit-1.8.0-3.el7.x86_64.rpm
nbdkit-debuginfo-1.8.0-3.el7.x86_64.rpm
nbdkit-plugin-python-common-1.8.0-3.el7.x86_64.rpm
nbdkit-plugin-python2-1.8.0-3.el7.x86_64.rpm
nbdkit-plugin-vddk-1.8.0-3.el7.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
x86_64:
nbdkit-basic-plugins-1.8.0-3.el7.x86_64.rpm
nbdkit-debuginfo-1.8.0-3.el7.x86_64.rpm
nbdkit-devel-1.8.0-3.el7.x86_64.rpm
nbdkit-example-plugins-1.8.0-3.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2019-14850
https://access.redhat.com/security/updates/classification/#low
https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/7.8_release_notes/index
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2020 Red Hat, Inc.
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