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Security Advisory Low: Red Hat Storage 2.0 security, bug fix, and enhancement update #3

Advisory: RHSA-2012:1456-1
Type: Security Advisory
Severity: Low
Issued on: 2012-11-12
Last updated on: 2012-11-12
Affected Products: Red Hat Storage Native Client
Red Hat Storage Server 2.0
CVEs ( CVE-2012-4417


Updated glusterfs packages that fix multiple security issues, several bugs,
and contain enhancements are now available for Red Hat Storage 2.0.

The Red Hat Security Response Team has rated this update as having low
security impact. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available from the CVE link in
the References section.

Red Hat Storage is software only, scale-out storage that provides flexible
and affordable unstructured data storage for the enterprise. GlusterFS, a
key building block of Red Hat Storage, is based on a stackable user-space
design and can deliver exceptional performance for diverse workloads.
GlusterFS aggregates various storage servers over network interconnects
into one large, parallel network file system.

Multiple insecure temporary file creation flaws were found in Red Hat
Storage. A local user on the Red Hat Storage server could use these flaws
to cause arbitrary files to be overwritten as the root user via a symbolic
link attack. (CVE-2012-4417)

These issues were discovered by Kurt Seifried of Red Hat, and Jim Meyering.

This update also fixes the following bugs:

* If geo-replication is started with a large number of small static files,
E2BIG error is displayed. This is due to the way the rsync was invoked by
geo-replication. This issue has been fixed and geo-replication works fine
for large number of files. (BZ#859173)

* RHS automatically modifies the smb.conf file and starts/restarts the SMB
service when a new volume is created, regardless of the chkconfig status of
the service. This results in an improper SMB configuration and errors are
logged. This issue has been fixed by performing a "condrestart" instead of
an unconditional "start". (BZ#863907)

* Issuing "gluster peer probe" command on an Fully Qualified Domain Name
(FQDN) that contains a number as the first character in the domain name
resulted in the command failing. This issue has been fixed by allowing
digits as the first character in the FQDN. (BZ#863908)

* In a replicated configuration, rebooting one of the servers during active
I/O have resulted in stale locks and caused some glusterfs commands to
fail. This issue has been fixed by adjusting the timeout value. (BZ#866758)

* In a replicated volume, when a file was in split-brain state, reads were
still permitted on that file from the NFS mount. This issue has been fixed
by reporting an I/O Error. (BZ#855913)

* After an upgrade, Geo-replication status is "N/A" if the checkpoint
service is not functional. This is due to the change of the location of
unix domain sockets that are used for inter-component communication. This
issue has been fixed by having glusterd specify the socket location to
gsyncd. (BZ#873380)

* On a replicate volume, when one of the brick is offline and from NFS
mount when ln command is executed, the command fails. This is because
getattr calls lookup with a NULL parent. This issue has been fixed by
properly populating the parent information. (BZ#874051)

In addition, this update adds the following enhancements:

* This errata includes a replication enhancement called Server-side Quorum
enforcement, which is a means to reduce the chances of split-brains. Quorum
enforcement is at the glusterd level and each volume can choose whether or
not to enforce quorum by setting the relevant volume options and the quorum
default ratio is >50%. A ratio of >50% means that at any point in time,
more than half the number of nodes in the trusted storage pool need to be
started and connected to each other. If network disconnects and outages
happen in such a way that a smaller portion of the storage pool is offline,
bricks running in those nodes are taken down preventing further writes from
happening to the minority. For a two node cluster, quorum enforcement will
require an arbitrator in the trusted storage pool which does not have
bricks participating in that quorum enforcing volume. (BZ#840122)

* sosreport is a tool which generates debugging information for the system
it is run on. This tool has been packaged in the Red Hat Storage channel.
This will enable further Red Hat Storage specific tweaks and enhancements
and improve debugability. (BZ#856673)

All users of Red Hat Storage are advised to upgrade to these updated
packages, which fix these issues and add these enhancements.


Before applying this update, make sure all previously-released errata
relevant to your system have been applied.

This update is available via the Red Hat Network. Details on how to
use the Red Hat Network to apply this update are available at

Updated packages

Red Hat Storage Native Client

File outdated by:  RHEA-2014:0208
    MD5: 4e75e94335aedb728c8afd597bf5acd8
SHA-256: 33106a4b560e5be7cfee4bc752825e48a59ef2cecab3c0e6c417a75facd18b1e
File outdated by:  RHEA-2014:0208
    MD5: e68a55aa611c98550446e127d8d38df9
SHA-256: 353fcc01cfcc7858adaf1f62ce42fead7d65ac086d479eab386166198b3fe8f2
File outdated by:  RHEA-2014:0208
    MD5: f1dd77f8dc69aa4c92396a0571f7201f
SHA-256: b64b76ce9e9e659c7bfd4194346c0015b4d55f6952eae5e65b4d0d504dfe9e93
File outdated by:  RHEA-2014:0208
    MD5: 915ec5432ff378fb928b3d1950c5fd58
SHA-256: b66b6762f40d490ff3c2b76339021466b2de2ba5ba1572fd9ad33bf6e839e260
File outdated by:  RHEA-2014:0208
    MD5: b39665af564ebb81692d791d70e7d6ac
SHA-256: 3f5be8652a3ed8a0a3fec879b9d94bb1738a909cbaa017cdba7eb6a3128bb303
File outdated by:  RHEA-2014:0208
    MD5: 275356cede7a8148ea1f0fc74cfad595
SHA-256: 94758e40d0d97b7a40694e4f2e019fb295f6041aabc1b63cb4f9e64cab6eb6e0
File outdated by:  RHEA-2014:0208
    MD5: 00a2138c95370f032adc3c97df21102b
SHA-256: 537b23b0627a98ebeb3386dc5b26509f15ae0b76ddc89264353e512ef543c604
File outdated by:  RHEA-2014:0208
    MD5: bee678d9759922bc09acdc46b9e8cc87
SHA-256: 779c63546fd1f8a2b1625c4569041732e42bafc07237f8f128fce60bb8d6511c
File outdated by:  RHEA-2014:0208
    MD5: da8603207cd26414099f696449795d13
SHA-256: 9377618e35637299667fceb0d8a70d0e4e065865e31915bc98cc41ac17d47ae2
File outdated by:  RHEA-2014:0208
    MD5: dd3f2c9b7c87100d4bbc0dbd805a2f5b
SHA-256: 7fc444d8d8e58b10e86739b512b1617ffc7280889c93b33bec0c72690493bbf0
File outdated by:  RHEA-2014:0208
    MD5: 711744bcbc96ca4886d05a92bb857bb3
SHA-256: e084758b416b4595753f87462893a7b4c95c04b61849fc54e61ffa0efd323377
File outdated by:  RHEA-2014:0208
    MD5: f1ed6eacfa8fdbd66353c83480536a33
SHA-256: f80fb27905acc26e12e42a2c97429e01f62cd79817cdf10d80202416ff91f8a7
Red Hat Storage Server 2.0

File outdated by:  RHSA-2013:1205
    MD5: c74a629b553d6c0f13b473051088be7d
SHA-256: c41efce8d3e0ac2a3b09570f8875cc05d573a219aefd0501b67c0042973b2ea2
File outdated by:  RHSA-2013:0691
    MD5: c5ed0067ccd3486f3aac7f014ee40b29
SHA-256: d358f69b68a5812fd247a607960ff5100befb2cec24f2f664779305e88354774
File outdated by:  RHSA-2013:1205
    MD5: 9c2b48f3e8b39997ee145c6f4b37eca9
SHA-256: abc8c7bd0d9a5937241deb4e98fe7f8652a0bd038c5a51211977b447c3a9bf30
File outdated by:  RHSA-2013:1205
    MD5: 476abe6e3ab62d785caf325ffc2c19b6
SHA-256: 78ef988ea9d7c8ddfe94a7efa9f805ce1135bf3bf2dcef10851089a222c05963
File outdated by:  RHSA-2013:1205
    MD5: 4f778ddba9110c5bb47fd235725b3615
SHA-256: 718f177de6f87cd53f05da69356aa9df87b4f35b9f65c8c411d01dc4f7f91b09
File outdated by:  RHSA-2013:1205
    MD5: 84addf5bb3097d75d5278bd8207f35f1
SHA-256: b5b23e812fa45d3a9970846258e0d8e27a255ff64564a3eed2201fa3f4338546
File outdated by:  RHSA-2013:1205
    MD5: c328f3ccaaed5f205a4ac838b52ce22f
SHA-256: 99ad55642ccf162e322f645262af969811eef261a69a1edab5cd17673a896542
File outdated by:  RHSA-2013:1205
    MD5: 3ecc6e33048999b6172a95b8d99227d4
SHA-256: c3b981cc46f6d41da146731c9ae6e7d2e8200f736f7f3b13becc2ab2cc224a49
File outdated by:  RHSA-2013:1205
    MD5: a31c006ceb7b4e9247858d0f0f3d5f81
SHA-256: dd4babb3cca8d6bbb9b86f6fc3942ecf781c3c60fd0591e94e3fd3ff7233868a
File outdated by:  RHSA-2013:0691
    MD5: f6e30e69e6c70772146c42aef850dfe2
SHA-256: 94fef819b03e148226f15e8137bfd52b50b9f8c5d0a05d4020217c2feaa68ac2
(The unlinked packages above are only available from the Red Hat Network)

Bugs fixed (see bugzilla for more information)

840122 - Implement a server side quorum in glusterd
855913 - NFS Mount doesn't report "I/0 Error" when a file is in split-brain state
856341 - CVE-2012-4417 GlusterFS: insecure temporary file creation
856673 - Add sos to Red Hat Storage
859173 - geo-replication with large number of small static files will have E2BIG errors in logs.
863907 - GlusterFS automatically starts smb service when it is disabled w/ chkconfig
866758 - gluster volume status all "Failed to get names of volumes" when peer in volume is restarted during transaction
873380 - [] geo-rep status gives N/A.
874051 - ln command execution fails on files with "invalid argument" error when executed the command from nfs mount


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