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Red Hat Product Errata RHSA-2018:1637 - Security Advisory
Issued:
2018-05-29
Updated:
2018-05-29

RHSA-2018:1637 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kernel security update

Type/Severity

Security Advisory: Important

Red Hat Insights patch analysis

Identify and remediate systems affected by this advisory.

View affected systems

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support, Red Hat Enterprise Linux 7.2 Telco Extended Update Support, and Red Hat Enterprise Linux 7.2 Update Services for SAP Solutions.

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):

  • 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)

Note: This issue is present in hardware and cannot be fully fixed via software update. The updated kernel packages provide software side of the mitigation for this hardware issue. To be fully functional, up-to-date CPU microcode applied on the system is required. Please refer to References section for further information about this issue, CPU microcode requirements and the potential performance impact.

In this update mitigations for x86-64 architecture are provided.

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

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 7.2 x86_64
  • Red Hat Enterprise Linux Server - TUS 7.2 x86_64
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.2 x86_64

Fixes

  • BZ - 1566890 - CVE-2018-3639 hw: cpu: speculative store bypass

CVEs

  • CVE-2018-3639

References

  • https://access.redhat.com/security/updates/classification/#important
  • https://access.redhat.com/security/vulnerabilities/ssbd
Note: More recent versions of these packages may be available. Click a package name for more details.

Red Hat Enterprise Linux Server - AUS 7.2

SRPM
kernel-3.10.0-327.66.5.el7.src.rpm SHA-256: f77dfea4c6ac0642075769568b705939d93afc267d583b98cf12f646f375cbea
x86_64
kernel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: d40376c897ff0733624faea8e35477eba70ccb45b8c3ed8042206b0762ea16b2
kernel-abi-whitelists-3.10.0-327.66.5.el7.noarch.rpm SHA-256: 120479fcd8e7f569bff1c4997c17dda38f78952fb5ddc0a8368d0dfc29701c08
kernel-debug-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 519db734f2949f6e23d6f1315558297f11b9e06319294719bcd63f5f5f59c6ef
kernel-debug-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 8c9c8893947aff25be805c15cf891193138d311ddb8745e24ca6c029fe8750d6
kernel-debug-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 8c9c8893947aff25be805c15cf891193138d311ddb8745e24ca6c029fe8750d6
kernel-debug-devel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: d0cd2c2d9d199aa6e941dc9bbd0b75cbe0f48157b1a61b9d6e51ea885f81db69
kernel-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7213e598617e8c4a2b5509ed7549923d618a272207a6c14f28fd7ea08aea6de9
kernel-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7213e598617e8c4a2b5509ed7549923d618a272207a6c14f28fd7ea08aea6de9
kernel-debuginfo-common-x86_64-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7f6d9b943c80a5cc3954d87456554050975bef972cb9bcd21baff218d5157dde
kernel-debuginfo-common-x86_64-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7f6d9b943c80a5cc3954d87456554050975bef972cb9bcd21baff218d5157dde
kernel-devel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: af3a44dc0cb84534f2c77b58808dcf20d4658b54132fe39ce69bb6921dc06371
kernel-doc-3.10.0-327.66.5.el7.noarch.rpm SHA-256: 6529e222cfdcf1b968dbd580c9543632e039234907a625de27f68b635ce8fe13
kernel-headers-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 899e915b5018287df445d17a96be178632b21a88867085f79979932922ee9c9b
kernel-tools-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 1b3a2491dd3580ee9524c06b99e71b0e244e03d59892b80a7e15acf5405c4112
kernel-tools-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 1e0b387a6d24491cee20fcaa4e23159f1d14628ff88eb4003799e1cdcff9261c
kernel-tools-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 1e0b387a6d24491cee20fcaa4e23159f1d14628ff88eb4003799e1cdcff9261c
kernel-tools-libs-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: c4105684617eafa022d17718ee15bdc9884bed3f872cb68793e4d3b6fd89a641
kernel-tools-libs-devel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 52953ebedcfc920a5df6fba4534cbcf2b08482e73dd4336df4baf7eba93a6a4c
perf-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 48c8246da1430f61f462099801f6d3eb27d567e5eb14e830b39d227ee9253c32
perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 4bd74304453b2f71732d9a0179924b2c0f53ebb2735fd0ca46f8a5ad8052ac9e
perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 4bd74304453b2f71732d9a0179924b2c0f53ebb2735fd0ca46f8a5ad8052ac9e
python-perf-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: cc61265ab4e6849c3442f463a783452d2b12f5d3e3fed0678de7bc373ad7b4fd
python-perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: bf64fab4e2167292b00337f589cc1045061604535f385ef48a1679f1ca45f51e
python-perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: bf64fab4e2167292b00337f589cc1045061604535f385ef48a1679f1ca45f51e

Red Hat Enterprise Linux Server - TUS 7.2

SRPM
kernel-3.10.0-327.66.5.el7.src.rpm SHA-256: f77dfea4c6ac0642075769568b705939d93afc267d583b98cf12f646f375cbea
x86_64
kernel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: d40376c897ff0733624faea8e35477eba70ccb45b8c3ed8042206b0762ea16b2
kernel-abi-whitelists-3.10.0-327.66.5.el7.noarch.rpm SHA-256: 120479fcd8e7f569bff1c4997c17dda38f78952fb5ddc0a8368d0dfc29701c08
kernel-debug-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 519db734f2949f6e23d6f1315558297f11b9e06319294719bcd63f5f5f59c6ef
kernel-debug-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 8c9c8893947aff25be805c15cf891193138d311ddb8745e24ca6c029fe8750d6
kernel-debug-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 8c9c8893947aff25be805c15cf891193138d311ddb8745e24ca6c029fe8750d6
kernel-debug-devel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: d0cd2c2d9d199aa6e941dc9bbd0b75cbe0f48157b1a61b9d6e51ea885f81db69
kernel-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7213e598617e8c4a2b5509ed7549923d618a272207a6c14f28fd7ea08aea6de9
kernel-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7213e598617e8c4a2b5509ed7549923d618a272207a6c14f28fd7ea08aea6de9
kernel-debuginfo-common-x86_64-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7f6d9b943c80a5cc3954d87456554050975bef972cb9bcd21baff218d5157dde
kernel-debuginfo-common-x86_64-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7f6d9b943c80a5cc3954d87456554050975bef972cb9bcd21baff218d5157dde
kernel-devel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: af3a44dc0cb84534f2c77b58808dcf20d4658b54132fe39ce69bb6921dc06371
kernel-doc-3.10.0-327.66.5.el7.noarch.rpm SHA-256: 6529e222cfdcf1b968dbd580c9543632e039234907a625de27f68b635ce8fe13
kernel-headers-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 899e915b5018287df445d17a96be178632b21a88867085f79979932922ee9c9b
kernel-tools-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 1b3a2491dd3580ee9524c06b99e71b0e244e03d59892b80a7e15acf5405c4112
kernel-tools-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 1e0b387a6d24491cee20fcaa4e23159f1d14628ff88eb4003799e1cdcff9261c
kernel-tools-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 1e0b387a6d24491cee20fcaa4e23159f1d14628ff88eb4003799e1cdcff9261c
kernel-tools-libs-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: c4105684617eafa022d17718ee15bdc9884bed3f872cb68793e4d3b6fd89a641
kernel-tools-libs-devel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 52953ebedcfc920a5df6fba4534cbcf2b08482e73dd4336df4baf7eba93a6a4c
perf-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 48c8246da1430f61f462099801f6d3eb27d567e5eb14e830b39d227ee9253c32
perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 4bd74304453b2f71732d9a0179924b2c0f53ebb2735fd0ca46f8a5ad8052ac9e
perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 4bd74304453b2f71732d9a0179924b2c0f53ebb2735fd0ca46f8a5ad8052ac9e
python-perf-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: cc61265ab4e6849c3442f463a783452d2b12f5d3e3fed0678de7bc373ad7b4fd
python-perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: bf64fab4e2167292b00337f589cc1045061604535f385ef48a1679f1ca45f51e
python-perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: bf64fab4e2167292b00337f589cc1045061604535f385ef48a1679f1ca45f51e

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.2

SRPM
kernel-3.10.0-327.66.5.el7.src.rpm SHA-256: f77dfea4c6ac0642075769568b705939d93afc267d583b98cf12f646f375cbea
x86_64
kernel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: d40376c897ff0733624faea8e35477eba70ccb45b8c3ed8042206b0762ea16b2
kernel-abi-whitelists-3.10.0-327.66.5.el7.noarch.rpm SHA-256: 120479fcd8e7f569bff1c4997c17dda38f78952fb5ddc0a8368d0dfc29701c08
kernel-debug-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 519db734f2949f6e23d6f1315558297f11b9e06319294719bcd63f5f5f59c6ef
kernel-debug-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 8c9c8893947aff25be805c15cf891193138d311ddb8745e24ca6c029fe8750d6
kernel-debug-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 8c9c8893947aff25be805c15cf891193138d311ddb8745e24ca6c029fe8750d6
kernel-debug-devel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: d0cd2c2d9d199aa6e941dc9bbd0b75cbe0f48157b1a61b9d6e51ea885f81db69
kernel-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7213e598617e8c4a2b5509ed7549923d618a272207a6c14f28fd7ea08aea6de9
kernel-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7213e598617e8c4a2b5509ed7549923d618a272207a6c14f28fd7ea08aea6de9
kernel-debuginfo-common-x86_64-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7f6d9b943c80a5cc3954d87456554050975bef972cb9bcd21baff218d5157dde
kernel-debuginfo-common-x86_64-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 7f6d9b943c80a5cc3954d87456554050975bef972cb9bcd21baff218d5157dde
kernel-devel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: af3a44dc0cb84534f2c77b58808dcf20d4658b54132fe39ce69bb6921dc06371
kernel-doc-3.10.0-327.66.5.el7.noarch.rpm SHA-256: 6529e222cfdcf1b968dbd580c9543632e039234907a625de27f68b635ce8fe13
kernel-headers-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 899e915b5018287df445d17a96be178632b21a88867085f79979932922ee9c9b
kernel-tools-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 1b3a2491dd3580ee9524c06b99e71b0e244e03d59892b80a7e15acf5405c4112
kernel-tools-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 1e0b387a6d24491cee20fcaa4e23159f1d14628ff88eb4003799e1cdcff9261c
kernel-tools-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 1e0b387a6d24491cee20fcaa4e23159f1d14628ff88eb4003799e1cdcff9261c
kernel-tools-libs-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: c4105684617eafa022d17718ee15bdc9884bed3f872cb68793e4d3b6fd89a641
kernel-tools-libs-devel-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 52953ebedcfc920a5df6fba4534cbcf2b08482e73dd4336df4baf7eba93a6a4c
perf-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 48c8246da1430f61f462099801f6d3eb27d567e5eb14e830b39d227ee9253c32
perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 4bd74304453b2f71732d9a0179924b2c0f53ebb2735fd0ca46f8a5ad8052ac9e
perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: 4bd74304453b2f71732d9a0179924b2c0f53ebb2735fd0ca46f8a5ad8052ac9e
python-perf-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: cc61265ab4e6849c3442f463a783452d2b12f5d3e3fed0678de7bc373ad7b4fd
python-perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: bf64fab4e2167292b00337f589cc1045061604535f385ef48a1679f1ca45f51e
python-perf-debuginfo-3.10.0-327.66.5.el7.x86_64.rpm SHA-256: bf64fab4e2167292b00337f589cc1045061604535f385ef48a1679f1ca45f51e

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

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