—–BEGIN PGP SIGNED MESSAGE—–
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel-rt security and bug fix update
Advisory ID: RHSA-2017:1297-01
Product: Red Hat Enterprise MRG for RHEL-6
Advisory URL: https://access.redhat.com/errata/RHSA-2017:1297
Issue date: 2017-05-25
CVE Names: CVE-2016-10208 CVE-2016-7910 CVE-2016-8646
CVE-2017-7308
=====================================================================
1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise MRG 2.
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.
2. Relevant releases/architectures:
MRG Realtime for RHEL 6 Server v.2 – noarch, x86_64
3. Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* It was found that the packet_set_ring() function of the Linux kernel’s
networking implementation did not properly validate certain block-size
data. A local attacker with CAP_NET_RAW capability could use this flaw to
trigger a buffer overflow, resulting in the crash of the system. Due to the
nature of the flaw, privilege escalation cannot be fully ruled out.
(CVE-2017-7308, Important)
* Mounting a crafted EXT4 image read-only leads to an attacker controlled
memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate)
* A flaw was found in the Linux kernel’s implementation of seq_file where a
local attacker could manipulate memory in the put() function pointer. This
could lead to memory corruption and possible privileged escalation.
(CVE-2016-7910, Moderate)
* A vulnerability was found in the Linux kernel. An unprivileged local user
could trigger oops in shash_async_export() by attempting to force the
in-kernel hashing algorithms into decrypting an empty data set.
(CVE-2016-8646, Moderate)
Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for
reporting CVE-2016-8646.
Bug Fix(es):
* The kernel-rt packages have been upgraded to the 3.10.0-514 source tree,
which provides a number of bug fixes over the previous version.
(BZ#1440807)
4. 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
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1388821 – CVE-2016-8646 kernel: Oops in shash_async_export()
1395190 – CVE-2016-10208 kernel: EXT4 memory corruption / SLAB out-of-bounds read
1399727 – CVE-2016-7910 kernel: Use after free in seq file
1437404 – CVE-2017-7308 kernel: net/packet: overflow in check for priv area size
1440807 – update the MRG 2.5.z 3.10 kernel-rt sources
6. Package List:
MRG Realtime for RHEL 6 Server v.2:
Source:
kernel-rt-3.10.0-514.rt56.221.el6rt.src.rpm
noarch:
kernel-rt-doc-3.10.0-514.rt56.221.el6rt.noarch.rpm
kernel-rt-firmware-3.10.0-514.rt56.221.el6rt.noarch.rpm
x86_64:
kernel-rt-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-debug-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-debug-devel-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-debuginfo-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-devel-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-trace-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-trace-devel-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-vanilla-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-vanilla-debuginfo-3.10.0-514.rt56.221.el6rt.x86_64.rpm
kernel-rt-vanilla-devel-3.10.0-514.rt56.221.el6rt.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2016-10208
https://access.redhat.com/security/cve/CVE-2016-7910
https://access.redhat.com/security/cve/CVE-2016-8646
https://access.redhat.com/security/cve/CVE-2017-7308
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc.
—–BEGIN PGP SIGNATURE—–
Version: GnuPG v1
iD8DBQFZJwO5XlSAg2UNWIIRAnpqAKCQZt/swy6bi7/sVf3/6spUqI1ofQCgoALD
qCQAviiomm5UaLPvITg/ol0=
=1j3c
—–END PGP SIGNATURE—–
—
Enterprise-watch-list mailing list
Enterprise-watch-list@redhat.com
https://www.redhat.com/mailman/listinfo/enterprise-watch-list
—–BEGIN PGP SIGNED MESSAGE—–
Hash: SHA1
=====================================================================
Red Hat Security Advisory
Synopsis: Important: kernel-rt security and bug fix update
Advisory ID: RHSA-2017:1298-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2017:1298
Issue date: 2017-05-25
CVE Names: CVE-2016-10208 CVE-2016-7910 CVE-2016-8646
CVE-2017-7308
=====================================================================
1. Summary:
An update for kernel-rt is now available for Red Hat Enterprise Linux 7.
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.
2. Relevant releases/architectures:
Red Hat Enterprise Linux Realtime (v. 7) – noarch, x86_64
Red Hat Enterprise Linux for Real Time for NFV (v. 7) – noarch, x86_64
3. Description:
The kernel-rt packages provide the Real Time Linux Kernel, which enables
fine-tuning for systems with extremely high determinism requirements.
Security Fix(es):
* It was found that the packet_set_ring() function of the Linux kernel’s
networking implementation did not properly validate certain block-size
data. A local attacker with CAP_NET_RAW capability could use this flaw to
trigger a buffer overflow, resulting in the crash of the system. Due to the
nature of the flaw, privilege escalation cannot be fully ruled out.
(CVE-2017-7308, Important)
* Mounting a crafted EXT4 image read-only leads to an attacker controlled
memory corruption and SLAB-Out-of-Bounds reads. (CVE-2016-10208, Moderate)
* A flaw was found in the Linux kernel’s implementation of seq_file where a
local attacker could manipulate memory in the put() function pointer. This
could lead to memory corruption and possible privileged escalation.
(CVE-2016-7910, Moderate)
* A vulnerability was found in the Linux kernel. An unprivileged local user
could trigger oops in shash_async_export() by attempting to force the
in-kernel hashing algorithms into decrypting an empty data set.
(CVE-2016-8646, Moderate)
Red Hat would like to thank Igor Redko (Virtuozzo kernel team) for
reporting CVE-2016-8646.
Bug Fix(es):
* The kernel-rt packages have been upgraded to the 3.10.0-514.21.1 source
tree, which provides a number of bug fixes over the previous version.
(BZ#1440803)
4. 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
The system must be rebooted for this update to take effect.
5. Bugs fixed (https://bugzilla.redhat.com/):
1388821 – CVE-2016-8646 kernel: Oops in shash_async_export()
1395190 – CVE-2016-10208 kernel: EXT4 memory corruption / SLAB out-of-bounds read
1399727 – CVE-2016-7910 kernel: Use after free in seq file
1437404 – CVE-2017-7308 kernel: net/packet: overflow in check for priv area size
1440803 – kernel-rt: update to the RHEL7.3.z batch#5 source tree [rhel-7.3.z]
6. Package List:
Red Hat Enterprise Linux for Real Time for NFV (v. 7):
Source:
kernel-rt-3.10.0-514.21.1.rt56.438.el7.src.rpm
noarch:
kernel-rt-doc-3.10.0-514.21.1.rt56.438.el7.noarch.rpm
x86_64:
kernel-rt-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debug-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debug-kvm-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debug-kvm-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-kvm-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-kvm-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-trace-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-trace-kvm-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-trace-kvm-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
Red Hat Enterprise Linux Realtime (v. 7):
Source:
kernel-rt-3.10.0-514.21.1.rt56.438.el7.src.rpm
noarch:
kernel-rt-doc-3.10.0-514.21.1.rt56.438.el7.noarch.rpm
x86_64:
kernel-rt-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debug-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debug-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debug-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-debuginfo-common-x86_64-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-trace-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-trace-debuginfo-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
kernel-rt-trace-devel-3.10.0-514.21.1.rt56.438.el7.x86_64.rpm
These packages are GPG signed by Red Hat for security. Our key and
details on how to verify the signature are available from
https://access.redhat.com/security/team/key/
7. References:
https://access.redhat.com/security/cve/CVE-2016-10208
https://access.redhat.com/security/cve/CVE-2016-7910
https://access.redhat.com/security/cve/CVE-2016-8646
https://access.redhat.com/security/cve/CVE-2017-7308
https://access.redhat.com/security/updates/classification/#important
8. Contact:
The Red Hat security contact is <secalert@redhat.com>. More contact
details at https://access.redhat.com/security/team/contact/
Copyright 2017 Red Hat, Inc.
—–BEGIN PGP SIGNATURE—–
Version: GnuPG v1
iD8DBQFZJwOrXlSAg2UNWIIRAn2UAJ41Ut4i1vSy/aadG+YmtOqOdQIZAgCfVq1T
VbvmE37hC8DYk4acPs8EdNQ=
=+ZRz
—–END PGP SIGNATURE—–
—
Enterprise-watch-list mailing list
Enterprise-watch-list@redhat.com
https://www.redhat.com/mailman/listinfo/enterprise-watch-list