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AUSCERT External Security Bulletin Redistribution
ESB-2020.1184
nbdkit security and bug fix update
2 April 2020
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AusCERT Security Bulletin Summary
---------------------------------
Product: nbdkit
Publisher: Red Hat
Operating System: Red Hat Enterprise Linux Server 7
Red Hat Enterprise Linux WS/Desktop 7
UNIX variants (UNIX, Linux, OSX)
Impact/Access: Denial of Service -- Remote/Unauthenticated
Resolution: Patch/Upgrade
CVE Names: CVE-2019-14850
Original Bulletin:
https://access.redhat.com/errata/RHSA-2020:1167
Comment: This advisory references vulnerabilities in products which run on
platforms other than Red Hat. It is recommended that administrators
running nbdkit check for an updated version of the software for
their operating system.
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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
=====================================================================
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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