Synopsis

Important: kernel security update

Type/Severity

Security Advisory: Important

Topic

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.

Description

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

Security Fix(es):

• Modern operating systems implement virtualization of physical memory to efficiently use available system resources and provide inter-domain protection through access control and isolation. The L1TF issue was found in the way the x86 microprocessor designs have implemented speculative execution of instructions (a commonly used performance optimization) in combination with handling of page-faults caused by terminated virtual to physical address resolving process. As a result, an unprivileged attacker could use this flaw to read privileged memory of the kernel or other processes and/or cross guest/host boundaries to read host memory by conducting targeted cache side-channel attacks. (CVE-2018-3620, CVE-2018-3646)
  

Red Hat would like to thank Intel OSSIRT (Intel.com) for reporting these issues.

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.

Affected Products

• Red Hat Enterprise Linux Server - AUS 5.9 x86_64
• Red Hat Enterprise Linux Server - AUS 5.9 i386

Fixes

• BZ - 1585005 - CVE-2018-3620 CVE-2018-3646 Kernel: hw: cpu: L1 terminal fault (L1TF)

CVEs

• CVE-2018-3620
• CVE-2018-3646

References

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

Red Hat Enterprise Linux Server - AUS 5.9

SRPM
kernel-2.6.18-348.41.1.el5.src.rpm	SHA-256: c2a0e4bbb972c1a18067f4226983c73f1f3907aca7e0c1a7555e13c256ef811a
x86_64
kernel-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: 5b86e743b47cbc21c967cfee7c2d216cd7da2b9e9e34a11f5cbea3e4b9ad7f31
kernel-debug-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: 9d7ad663de0ed2dba1f4f574963ea4c21e7c62e309d18aa40cd1defc2241c7d0
kernel-debug-debuginfo-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: 8ccbd60edcfa62c3ff9aaca4c88c102ae2e2c3ef606077c4d16b2ed86d817079
kernel-debug-devel-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: d7c325c4bd40f54ab212b5f3a1c2fd4a89e4341de5256d01b83f944aaf2e4dd4
kernel-debuginfo-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: 818a148b3d43a11930b5ca8d07d1259c57d0de4b3c866b9d7f24da4f497b77b8
kernel-debuginfo-common-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: fe6725df9da5e8044161437d969594ada93e8cc5f4c02d90d5944de95ba22499
kernel-devel-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: 0116ca47e01948d680af663480fd679b53aad7af270961b7d3a764bb633464ae
kernel-doc-2.6.18-348.41.1.el5.noarch.rpm	SHA-256: cb0b375f8af52b82f3ac767599194fd654d18703df73e1f794d908175b111e9f
kernel-headers-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: e580a520b5cb3b90715da3004feb36659f9518b86d4e015b83e08c5ff8cde051
kernel-xen-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: 5a7dae2b0bbfdbb085ba3bce0831586ecefab3dfcacb9c22562ea5006b450a8c
kernel-xen-debuginfo-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: 65405705324c6c40833e81c7dd0ada131dc6ae64d54617d871aac49ded2e1ead
kernel-xen-devel-2.6.18-348.41.1.el5.x86_64.rpm	SHA-256: 3baf615ba0ca46f0ab4917f048416525fce0885111e2b49cfb6d33da2e2a007a
i386
kernel-2.6.18-348.41.1.el5.i686.rpm	SHA-256: c0518aaa9c7b31fe33fe3bed1ac7cfad257f431ac4dca1bf38ffba6c6f63acaa
kernel-PAE-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 54276425ba60d44f10f292f4e0e1eefa02049a4e0a8261bfa3bf67d1fda3b53f
kernel-PAE-debuginfo-2.6.18-348.41.1.el5.i686.rpm	SHA-256: ef42670eae0cd81e4e5a93e63666c5053c709b673db8a54986484a977e4ad8e9
kernel-PAE-devel-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 8e1a5f60af5137598ae572e2cd3393e622f35d3a009ceccbb9fa0f35a788a57b
kernel-debug-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 78805fecb0f28973c26271bc07d89ef761f4357cce3f67df75e14284bc916482
kernel-debug-debuginfo-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 0948f845fa9223177db03bfd46906b197b649227e0690cb8a04c81c511dc6b2b
kernel-debug-devel-2.6.18-348.41.1.el5.i686.rpm	SHA-256: bf8a46158b8ff729449649e1f41e8ebab7e683362ff7cd911ffe3d1c073ea1d3
kernel-debuginfo-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 332c4f4ad6b43310ab9c85e73390f1fc75962157f374f20b74559d61048952e3
kernel-debuginfo-common-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 09f903e221191098a010a5cfdfbc595dfaf9c2285ca4ee561e2c6cbded03ccd0
kernel-devel-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 78599e5e1a11e17f4746c961661545cdd9f043c952964ab9080e7d140e89c22e
kernel-doc-2.6.18-348.41.1.el5.noarch.rpm	SHA-256: cb0b375f8af52b82f3ac767599194fd654d18703df73e1f794d908175b111e9f
kernel-headers-2.6.18-348.41.1.el5.i386.rpm	SHA-256: 11a7cf66ed67f9749909f2b047880467f4a96d595d434d102236420e31498393
kernel-xen-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 73bea404d1c76f2d4b7805afe0c5e54705a51de6e02937334b774e23f64cc8b7
kernel-xen-debuginfo-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 7d8fa3e9e8aff691505acb8ce8fc39ad82b969957891db784b6ff45ecb204c4e
kernel-xen-devel-2.6.18-348.41.1.el5.i686.rpm	SHA-256: 9e7269ff4484c1f904d0f3d1de7b3c1c40bddfb5a8845dd0ffdc54788a796a80