Issued:
2020-03-17
Updated:
2020-03-17

RHSA-2020:0889 - Important: slirp4netns security update

Synopsis

Important: slirp4netns security update

Type/Severity

Security Advisory Important

Topic

An update for slirp4netns is now available for Red Hat Enterprise Linux 7 Extras.

Red Hat Product Security has rated this update as having a security impact of Important. 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.

Description

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.

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

Affected Products

ProductVersionArch
Red Hat Enterprise Linux for Power, little endian7ppc64le
Red Hat Enterprise Linux for IBM z Systems7s390x
Red Hat Enterprise Linux Workstation7x86_64
Red Hat Enterprise Linux Server7x86_64

Updated Packages

  • slirp4netns-0.3.0-8.el7_7.src.rpm
  • slirp4netns-debuginfo-0.3.0-8.el7_7.ppc64le.rpm
  • slirp4netns-debuginfo-0.3.0-8.el7_7.s390x.rpm
  • slirp4netns-debuginfo-0.3.0-8.el7_7.x86_64.rpm
  • slirp4netns-0.3.0-8.el7_7.s390x.rpm
  • slirp4netns-0.3.0-8.el7_7.ppc64le.rpm
  • slirp4netns-0.3.0-8.el7_7.x86_64.rpm

Fixes

CVEs

References

Additional information