RedHat: RHSA-2020-0889:01 Important: slirp4netns security update
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.
Summary
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
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/
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.
Topic
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
