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Security Update RHSA-2020-0889-01 for slirp4netns in RHEL 7

red hat
Calendar Grey March 17, 2020
Dist Redhat Esm H88
Critical patch released for slirp4netns in Red Hat Enterprise Linux 7 Extras. Addresses multiple vulnerabilities.
An update for slirp4netns is now available for Red Hat Enterprise Linux 7 Extras

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

Summary

The slirp4netns package contains user-mode networking for unprivileged network namespaces. It is required to enable networking for rootless containers.
Security Fix(es):
* QEMU: slirp: heap buffer overflow during packet reassembly (CVE-2019-14378)
* QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu() (CVE-2020-7039)
* CVE-2020-8608 slirp4netns: QEMU: Slirp: potential OOB access due to unsafe snprintf() usages
* CVE-2019-15890 QEMU: Slirp: use-after-free during packet reassembly
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.

Topics%20covered

Topics Covered

security advisory security update Red Hat Enterprise Linux heap overflow slirp4netns buffer access

References

https://access.redhat.com/security/cve/CVE-2019-14378 https://access.redhat.com/security/cve/CVE-2019-15890 https://access.redhat.com/security/cve/CVE-2020-7039 https://access.redhat.com/security/cve/CVE-2020-8608 https://access.redhat.com/security/updates/classification/#important

Package List

Red Hat Enterprise Linux 7 Extras:
Source: slirp4netns-0.3.0-8.el7_7.src.rpm
ppc64le: slirp4netns-0.3.0-8.el7_7.ppc64le.rpm slirp4netns-debuginfo-0.3.0-8.el7_7.ppc64le.rpm
s390x: slirp4netns-0.3.0-8.el7_7.s390x.rpm slirp4netns-debuginfo-0.3.0-8.el7_7.s390x.rpm
x86_64: slirp4netns-0.3.0-8.el7_7.x86_64.rpm slirp4netns-debuginfo-0.3.0-8.el7_7.x86_64.rpm
Red Hat Enterprise Linux 7 Extras:
Source: slirp4netns-0.3.0-8.el7_7.src.rpm
x86_64: slirp4netns-0.3.0-8.el7_7.x86_64.rpm slirp4netns-debuginfo-0.3.0-8.el7_7.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/


Severity
important
Lowest
Low
Medium
High
Critical

Advisory ID: RHSA-2020:0889-01
Product: Red Hat Enterprise Linux Extras
Advisory URL: https://access.redhat.com/errata/RHSA-2020:0889
Issue date: 2020-03-17

Topic

An update for slirp4netns is now available for Red Hat Enterprise Linux 7Extras.Red Hat Product Security has rated this update as having a security impactof Important. A Common Vulnerability Scoring System (CVSS) base score,which gives a detailed severity rating, is available for each vulnerabilityfrom the CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory security update Red Hat Enterprise Linux heap overflow slirp4netns buffer access

Relevant Releases Architectures

Red Hat Enterprise Linux 7 Extras - ppc64le, s390x, x86_64

Bugs Fixed

1734745 - CVE-2019-14378 QEMU: slirp: heap buffer overflow during packet reassembly

1749716 - CVE-2019-15890 QEMU: Slirp: use-after-free during packet reassembly

1791551 - CVE-2020-7039 QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()

1798453 - CVE-2020-8608 QEMU: Slirp: potential OOB access due to unsafe snprintf() usages

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