Synopsis

Moderate: rpm-ostree and rpm-ostree-client security, bug fix, and enhancement update

Type/Severity

Security Advisory: Moderate

Topic

An update for rpm-ostree and rpm-ostree-client is now available for Red Hat Enterprise Linux Atomic Host 7.

Red Hat Product Security has rated this update as having a security impact of Moderate. 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 rpm-ostree tool binds together the RPM packaging model with the OSTree model of bootable file system trees. It provides commands which can be used both on client systems as well as server-side composes. The rpm-ostree-client package provides commands usable on client systems to upgrade and rollback.

The following packages have been upgraded to a later upstream version: rpm-ostree (2017.1), rpm-ostree-client (2017.1). (BZ#1416089)

Security Fix(es):

• It was discovered that rpm-ostree and rpm-ostree-client fail to properly check GPG signatures on packages when doing layering. Packages with unsigned or badly signed content could fail to be rejected as expected. This issue is partially mitigated on RHEL Atomic Host, where certificate pinning is used by default. (CVE-2017-2623)
  

This issue was discovered by Colin Walters (Red Hat).

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 Atomic Host 7 x86_64

Fixes

• BZ - 1416089 - Rebase ostree + rpm-ostree for 7.3.3
• BZ - 1421781 - Package layering non-root packages does not install var paths owned by root
• BZ - 1421867 - rpm-ostree daemon does not start when system is unsubscribed
• BZ - 1422157 - CVE-2017-2623 rpm-ostree and rpm-ostree-client fail to check gpg package signatures when layering

CVEs

• CVE-2017-2623

References

• https://access.redhat.com/security/updates/classification/#moderate

Red Hat Enterprise Linux Atomic Host 7

SRPM
rpm-ostree-2017.1-5.atomic.el7.src.rpm	SHA-256: 32aa62003f5b437295c1249a5d4968e18c52cc5d2ea6222ac3f9eeaac159356d
rpm-ostree-client-2017.1-6.atomic.el7.src.rpm	SHA-256: 6b3e7fe2c2406ed500dcbf06a95f55699c2e78da70c94b45bfd87a51a904f0cf
x86_64
rpm-ostree-2017.1-5.atomic.el7.x86_64.rpm	SHA-256: ce428108da26a7f3abfc96b6b826b8fd8c5829382da7f3b314af8c33f83f8e45
rpm-ostree-client-2017.1-6.atomic.el7.x86_64.rpm	SHA-256: ccee377bd7f762257244c9853b1e9a04a297a9fd780da15bdff374d60f9fe899
rpm-ostree-client-debuginfo-2017.1-6.atomic.el7.x86_64.rpm	SHA-256: 08903788a689eb00abc5e3c240bd1dd70886607b6c5b0c26cdc854c6e21e935a
rpm-ostree-debuginfo-2017.1-5.atomic.el7.x86_64.rpm	SHA-256: f3a21e77398d79565be77cf82800f84dbd19136194820ce2ce840a5a7269bf0e