You are here
Home > Preporuke > Sigurnosni nedostaci jezgre operacisjkog sustava

Sigurnosni nedostaci jezgre operacisjkog sustava

  • Detalji os-a: WN7
  • Važnost: IMP
  • Operativni sustavi: L
  • Kategorije: LRH

—–BEGIN PGP SIGNED MESSAGE—–
Hash: SHA256

=====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security update
Advisory ID: RHSA-2018:2172-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2172
Issue date: 2018-07-11
CVE Names: CVE-2017-14106 CVE-2018-3639
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 5
Extended Lifecycle Support.

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 Server (v. 5 ELS) – i386, noarch, s390x, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of Load & Store instructions
(a commonly used performance optimization). It relies on the presence of a
precisely-defined instruction sequence in the privileged code as well as
the fact that memory read from address to which a recent memory write has
occurred may see an older value and subsequently cause an update into the
microprocessor’s data cache even for speculatively executed instructions
that never actually commit (retire). As a result, an unprivileged attacker
could use this flaw to read privileged memory by conducting targeted cache
side-channel attacks. (CVE-2018-3639)

* kernel: A divide-by-zero vulnerability was found in the
__tcp_select_window function in the Linux kernel. This can result in a
kernel panic causing a local denial of service. (CVE-2017-14106)

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 References section.

Red Hat would like to thank Ken Johnson (Microsoft Security Response
Center) and Jann Horn (Google Project Zero) for reporting CVE-2018-3639.

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/):

1487295 – CVE-2017-14106 kernel: Divide-by-zero in __tcp_select_window
1566890 – CVE-2018-3639 hw: cpu: speculative store bypass

6. Package List:

Red Hat Enterprise Linux Server (v. 5 ELS):

Source:
kernel-2.6.18-433.el5.src.rpm

i386:
kernel-2.6.18-433.el5.i686.rpm
kernel-PAE-2.6.18-433.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-433.el5.i686.rpm
kernel-PAE-devel-2.6.18-433.el5.i686.rpm
kernel-debug-2.6.18-433.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-433.el5.i686.rpm
kernel-debug-devel-2.6.18-433.el5.i686.rpm
kernel-debuginfo-2.6.18-433.el5.i686.rpm
kernel-debuginfo-common-2.6.18-433.el5.i686.rpm
kernel-devel-2.6.18-433.el5.i686.rpm
kernel-headers-2.6.18-433.el5.i386.rpm
kernel-xen-2.6.18-433.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-433.el5.i686.rpm
kernel-xen-devel-2.6.18-433.el5.i686.rpm

noarch:
kernel-doc-2.6.18-433.el5.noarch.rpm

s390x:
kernel-2.6.18-433.el5.s390x.rpm
kernel-debug-2.6.18-433.el5.s390x.rpm
kernel-debug-debuginfo-2.6.18-433.el5.s390x.rpm
kernel-debug-devel-2.6.18-433.el5.s390x.rpm
kernel-debuginfo-2.6.18-433.el5.s390x.rpm
kernel-debuginfo-common-2.6.18-433.el5.s390x.rpm
kernel-devel-2.6.18-433.el5.s390x.rpm
kernel-headers-2.6.18-433.el5.s390x.rpm
kernel-kdump-2.6.18-433.el5.s390x.rpm
kernel-kdump-debuginfo-2.6.18-433.el5.s390x.rpm
kernel-kdump-devel-2.6.18-433.el5.s390x.rpm

x86_64:
kernel-2.6.18-433.el5.x86_64.rpm
kernel-debug-2.6.18-433.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-433.el5.x86_64.rpm
kernel-debug-devel-2.6.18-433.el5.x86_64.rpm
kernel-debuginfo-2.6.18-433.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-433.el5.x86_64.rpm
kernel-devel-2.6.18-433.el5.x86_64.rpm
kernel-headers-2.6.18-433.el5.x86_64.rpm
kernel-xen-2.6.18-433.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-433.el5.x86_64.rpm
kernel-xen-devel-2.6.18-433.el5.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-2017-14106
https://access.redhat.com/security/cve/CVE-2018-3639
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/ssbd

8. Contact:

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

Copyright 2018 Red Hat, Inc.
—–BEGIN PGP SIGNATURE—–
Version: GnuPG v1
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=RwOj
—–END PGP SIGNATURE—–


RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce

—–BEGIN PGP SIGNED MESSAGE—–
Hash: SHA256

=====================================================================
Red Hat Security Advisory

Synopsis: Important: kernel security update
Advisory ID: RHSA-2018:2171-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:2171
Issue date: 2018-07-11
CVE Names: CVE-2018-3639
=====================================================================

1. Summary:

An update for kernel is now available for Red Hat Enterprise Linux 5.9 Long
Life.

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 Long Life (v. 5.9 server) – i386, ia64, noarch, x86_64

3. Description:

The kernel packages contain the Linux kernel, the core of any Linux
operating system.

Security Fix(es):

* An industry-wide issue was found in the way many modern microprocessor
designs have implemented speculative execution of Load & Store instructions
(a commonly used performance optimization). It relies on the presence of a
precisely-defined instruction sequence in the privileged code as well as
the fact that memory read from address to which a recent memory write has
occurred may see an older value and subsequently cause an update into the
microprocessor’s data cache even for speculatively executed instructions
that never actually commit (retire). As a result, an unprivileged attacker
could use this flaw to read privileged memory by conducting targeted cache
side-channel attacks. (CVE-2018-3639)

Red Hat would like to thank Ken Johnson (Microsoft Security Response
Center) and Jann Horn (Google Project Zero) for reporting this issue.

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/):

1566890 – CVE-2018-3639 hw: cpu: speculative store bypass

6. Package List:

Red Hat Enterprise Linux Long Life (v. 5.9 server):

Source:
kernel-2.6.18-348.40.1.el5.src.rpm

i386:
kernel-2.6.18-348.40.1.el5.i686.rpm
kernel-PAE-2.6.18-348.40.1.el5.i686.rpm
kernel-PAE-debuginfo-2.6.18-348.40.1.el5.i686.rpm
kernel-PAE-devel-2.6.18-348.40.1.el5.i686.rpm
kernel-debug-2.6.18-348.40.1.el5.i686.rpm
kernel-debug-debuginfo-2.6.18-348.40.1.el5.i686.rpm
kernel-debug-devel-2.6.18-348.40.1.el5.i686.rpm
kernel-debuginfo-2.6.18-348.40.1.el5.i686.rpm
kernel-debuginfo-common-2.6.18-348.40.1.el5.i686.rpm
kernel-devel-2.6.18-348.40.1.el5.i686.rpm
kernel-headers-2.6.18-348.40.1.el5.i386.rpm
kernel-xen-2.6.18-348.40.1.el5.i686.rpm
kernel-xen-debuginfo-2.6.18-348.40.1.el5.i686.rpm
kernel-xen-devel-2.6.18-348.40.1.el5.i686.rpm

ia64:
kernel-2.6.18-348.40.1.el5.ia64.rpm
kernel-debug-2.6.18-348.40.1.el5.ia64.rpm
kernel-debug-debuginfo-2.6.18-348.40.1.el5.ia64.rpm
kernel-debug-devel-2.6.18-348.40.1.el5.ia64.rpm
kernel-debuginfo-2.6.18-348.40.1.el5.ia64.rpm
kernel-debuginfo-common-2.6.18-348.40.1.el5.ia64.rpm
kernel-devel-2.6.18-348.40.1.el5.ia64.rpm
kernel-headers-2.6.18-348.40.1.el5.ia64.rpm
kernel-xen-2.6.18-348.40.1.el5.ia64.rpm
kernel-xen-debuginfo-2.6.18-348.40.1.el5.ia64.rpm
kernel-xen-devel-2.6.18-348.40.1.el5.ia64.rpm

noarch:
kernel-doc-2.6.18-348.40.1.el5.noarch.rpm

x86_64:
kernel-2.6.18-348.40.1.el5.x86_64.rpm
kernel-debug-2.6.18-348.40.1.el5.x86_64.rpm
kernel-debug-debuginfo-2.6.18-348.40.1.el5.x86_64.rpm
kernel-debug-devel-2.6.18-348.40.1.el5.x86_64.rpm
kernel-debuginfo-2.6.18-348.40.1.el5.x86_64.rpm
kernel-debuginfo-common-2.6.18-348.40.1.el5.x86_64.rpm
kernel-devel-2.6.18-348.40.1.el5.x86_64.rpm
kernel-headers-2.6.18-348.40.1.el5.x86_64.rpm
kernel-xen-2.6.18-348.40.1.el5.x86_64.rpm
kernel-xen-debuginfo-2.6.18-348.40.1.el5.x86_64.rpm
kernel-xen-devel-2.6.18-348.40.1.el5.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-2018-3639
https://access.redhat.com/security/updates/classification/#important
https://access.redhat.com/security/vulnerabilities/ssbd

8. Contact:

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

Copyright 2018 Red Hat, Inc.
—–BEGIN PGP SIGNATURE—–
Version: GnuPG v1
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=RQlx
—–END PGP SIGNATURE—–


RHSA-announce mailing list
RHSA-announce@redhat.com
https://www.redhat.com/mailman/listinfo/rhsa-announce

AutorVlatka Misic
Cert idNCERT-REF-2018-07-0001-ADV
CveCERT-CVE-DUMMY
ID izvornikaCERT-ORIGID-DUMMY
ProizvodCERT-DUMMY-PRODUCT
IzvorAdobe
Top