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Red Hat Product Errata RHSA-2020:0889 - Security Advisory
Issued:
2020-03-17
Updated:
2020-03-17

RHSA-2020:0889 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: slirp4netns security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

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

  • Red Hat Enterprise Linux Server 7 x86_64
  • Red Hat Enterprise Linux Workstation 7 x86_64
  • Red Hat Enterprise Linux for IBM z Systems 7 s390x
  • Red Hat Enterprise Linux for Power, little endian 7 ppc64le

Fixes

  • BZ - 1734745 - CVE-2019-14378 QEMU: slirp: heap buffer overflow during packet reassembly
  • BZ - 1749716 - CVE-2019-15890 QEMU: Slirp: use-after-free during packet reassembly
  • BZ - 1791551 - CVE-2020-7039 QEMU: slirp: OOB buffer access while emulating tcp protocols in tcp_emu()
  • BZ - 1798453 - CVE-2020-8608 QEMU: Slirp: potential OOB access due to unsafe snprintf() usages

CVEs

  • CVE-2019-14378
  • CVE-2019-15890
  • CVE-2020-7039
  • CVE-2020-8608

References

  • https://access.redhat.com/security/updates/classification/#important
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server 7

SRPM
slirp4netns-0.3.0-8.el7_7.src.rpm SHA-256: d6732a08acfeb92a2991df4c4ce16101595bc6799aa830e34c79b7c10a17d0ff
x86_64
slirp4netns-0.3.0-8.el7_7.x86_64.rpm SHA-256: 293d955c193784e52fe274c8050e5e7db9752177d5ee9f659cf63ad57c70ef6e
slirp4netns-debuginfo-0.3.0-8.el7_7.x86_64.rpm SHA-256: d9782381aa7007436ab23851da4752fc1d9f4a8a0a274caf6a1dfd03d6165dbf

Red Hat Enterprise Linux Workstation 7

SRPM
slirp4netns-0.3.0-8.el7_7.src.rpm SHA-256: d6732a08acfeb92a2991df4c4ce16101595bc6799aa830e34c79b7c10a17d0ff
x86_64
slirp4netns-0.3.0-8.el7_7.x86_64.rpm SHA-256: 293d955c193784e52fe274c8050e5e7db9752177d5ee9f659cf63ad57c70ef6e
slirp4netns-debuginfo-0.3.0-8.el7_7.x86_64.rpm SHA-256: d9782381aa7007436ab23851da4752fc1d9f4a8a0a274caf6a1dfd03d6165dbf

Red Hat Enterprise Linux for IBM z Systems 7

SRPM
slirp4netns-0.3.0-8.el7_7.src.rpm SHA-256: d6732a08acfeb92a2991df4c4ce16101595bc6799aa830e34c79b7c10a17d0ff
s390x
slirp4netns-0.3.0-8.el7_7.s390x.rpm SHA-256: 26d5aa77c09924055af4f10dd315b9c50e44b2d633de4d2186208b0b84158cb7
slirp4netns-debuginfo-0.3.0-8.el7_7.s390x.rpm SHA-256: 69a8ad5e042a945d79533388da2b67732d84816711f0a66e941984607084a1fc

Red Hat Enterprise Linux for Power, little endian 7

SRPM
slirp4netns-0.3.0-8.el7_7.src.rpm SHA-256: d6732a08acfeb92a2991df4c4ce16101595bc6799aa830e34c79b7c10a17d0ff
ppc64le
slirp4netns-0.3.0-8.el7_7.ppc64le.rpm SHA-256: 4b8db68e4ff180347611328e2c88c170819d4faad88c30de449298dfc8f67f65
slirp4netns-debuginfo-0.3.0-8.el7_7.ppc64le.rpm SHA-256: 4a4c9284a51fa594368fb7ae65bca8829a7b3db344b5d205da6b3b894fdefa91

The Red Hat security contact is secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.

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