RHSA-2020:0889: Important: slirp4netns security update
First published: Tue Mar 17 2020(Updated: )
The slirp4netns package contains user-mode networking for unprivileged network namespaces. It is required to enable networking for rootless containers.<br>Security Fix(es):<br><li> QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378)</li> <li> QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039)</li> <li> CVE-2020-8608 slirp4netns: QEMU: Slirp: potential OOB access due to unsafe snprintf() usages</li> <li> CVE-2019-15890 QEMU: Slirp: use-after-free during packet reassembly</li> 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.
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/slirp4netns | <0.3.0-8.el7_7 | 0.3.0-8.el7_7 |
| redhat/slirp4netns | <0.3.0-8.el7_7 | 0.3.0-8.el7_7 |
| redhat/slirp4netns-debuginfo | <0.3.0-8.el7_7 | 0.3.0-8.el7_7 |
| redhat/slirp4netns-debuginfo | <0.3.0-8.el7_7 | 0.3.0-8.el7_7 |
| redhat/slirp4netns | <0.3.0-8.el7_7 | 0.3.0-8.el7_7 |
| redhat/slirp4netns-debuginfo | <0.3.0-8.el7_7 | 0.3.0-8.el7_7 |
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Reference Links
- https://bugzilla.redhat.com/show_bug.cgi?id=1734745
- https://bugzilla.redhat.com/show_bug.cgi?id=1749716
- https://bugzilla.redhat.com/show_bug.cgi?id=1791551
- https://bugzilla.redhat.com/show_bug.cgi?id=1798453
- https://access.redhat.com/security/updates/classification/#important
- https://access.redhat.com/errata/RHSA-2020:0889 (Advisory)
Frequently Asked Questions
What is the severity of RHSA-2020:0889?
The severity of RHSA-2020:0889 is considered moderate due to potential heap buffer overflow vulnerabilities.
How do I fix RHSA-2020:0889?
To fix RHSA-2020:0889, update the slirp4netns package to version 0.3.0-8.el7_7 or later.
What vulnerabilities are addressed in RHSA-2020:0889?
RHSA-2020:0889 addresses a heap buffer overflow vulnerability identified as CVE-2019-14378 in the slirp component.
Which systems are affected by RHSA-2020:0889?
RHSA-2020:0889 affects systems using the slirp4netns package prior to version 0.3.0-8.el7_7.
Is there a documentation available for more information on RHSA-2020:0889?
Yes, documentation related to RHSA-2020:0889 can typically be found within Red Hat's advisory resources.
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