Synopsis

Moderate: Red Hat Ceph Storage 2.5 security, enhancement, and bug fix update

Type/Severity

Security Advisory: Moderate

Topic

An update for ceph is now available for Red Hat Ceph Storage 2.5 for Red
Hat Enterprise Linux 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

Red Hat Ceph Storage is a scalable, open, software-defined storage platform
that combines the most stable version of the Ceph storage system with a
Ceph management platform, deployment utilities, and support services.

Security Fix(es):

• ceph: cephx protocol is vulnerable to replay attack (CVE-2018-1128)
• ceph: cephx uses weak signatures (CVE-2018-1129)
• ceph: ceph-mon does not perform authorization on OSD pool ops (CVE-2018-10861)

For more details about the security issue(s), including the impact, a CVSS
score and other related information refer to the CVE page(s) listed in the Reference section.

Enhancement(s):

• Ceph OSDs now logs when they shutdown due to disk operations timing out by default. (BZ#1568897)
• The `radosgw-admin orphans find` command can inadvertently remove data objects still in use, if followed by another operation, such as, a `rados rm` command. Users are now warned before attempting to produce lists of potentially orphaned objects. (BZ#1573656)
• The 'ceph-osdomap-tool' now has a 'compact' command to perform offline compaction on an OSD's 'omap' directory. (BZ#1574231)
• For S3 and Swift protocols, an option to list buckets/containers in natural (partial) order has been added. Listing containers in sorted order is canonical in both protocols, but is costly, and not required by some client applications. The performance and workload cost of S3 and Swift bucket/container listings is reduced for sharded buckets/containers when the `allow_unordered` extension is used. (BZ#1595374)
• An asynchronous mechanism for executing the Ceph Object Gateway garbage collection using the `librados` APIs has been introduced. The original garbage collection mechanism serialized all processing, and lagged behind applications in specific workloads. Garbage collection performance has been significantly improved, and can be tuned to specific site requirements. (BZ#1595383)

Bug Fix(es):

These updated ceph packages include numerous bug fixes. Space precludes
documenting all of these changes in this advisory. Users are directed to the Red Hat Ceph Storage 2.5 Release Notes for information on the most significant bug fixes for this release:

https://access.redhat.com/documentation/en-us/red_hat_ceph_storage/2.5/html/release_notes/bug_fixes

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 Desktop 7 x86_64
• Red Hat Enterprise Linux for Scientific Computing 7 x86_64
• Red Hat Ceph Storage MON 2 x86_64
• Red Hat Ceph Storage OSD 2 x86_64

Fixes

• BZ - 1448084 - [rbd-mirror] : manually removing a replicated image might result in an empty image
• BZ - 1515341 - [rbd] rbd du on empty pool does not return proper output
• BZ - 1522881 - RGW Memory Leak
• BZ - 1548071 - [CEE/SD][ceph-ansible][RHCS2]rolling-update.yml does not set noout,noscrub and nodeep-scrub flags
• BZ - 1554963 - Pool create cmd's expected_num_objects is not properly interpreted
• BZ - 1563825 - Ubuntu build errors because of "no such option: --use-wheel" in pip
• BZ - 1568897 - [RFE][CEE/SD] change "osd_max_markdown_count" dout level from (10) -> (0) for RHCS 2.y version
• BZ - 1574231 - RHCS 2.5.1 - Add compact operation to ceph-osdomap-tool
• BZ - 1575866 - CVE-2018-1128 ceph: cephx protocol is vulnerable to replay attack
• BZ - 1576057 - CVE-2018-1129 ceph: cephx uses weak signatures
• BZ - 1581579 - After latest environment update all ceph-disk@dev-sdXX.service are in failed state
• BZ - 1584218 - RGW listing versioned bucket objects always give 1 extra entry in the list in every 1000 entries
• BZ - 1584763 - Some versioned objects don't sync when uploaded with 's3cmd sync'
• BZ - 1584829 - objects in cache never refresh after rgw_cache_expiry_interval
• BZ - 1593308 - CVE-2018-10861 ceph: ceph-mon does not perform authorization on OSD pool ops
• BZ - 1595374 - [RFE] rgw: implement partial order bucket/container listing (perf)
• BZ - 1595383 - [RFE] implement parallel async/mt garbage collection
• BZ - 1595386 - RGW spinning at 100% CPU with no op traffic
• BZ - 1599507 - [Continuous OSD memory usage growth in a HEALTH_OK cluster] RGW workload makes OSD memory explode

CVEs

• CVE-2018-1128
• CVE-2018-1129
• CVE-2018-10861

References