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Red Hat Product Errata RHSA-2019:2945 - Security Advisory
Issued:
2019-10-01
Updated:
2019-10-01

RHSA-2019:2945 - Security Advisory

  • Overview
  • Updated Packages

Synopsis

Important: kpatch-patch 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 kpatch-patch 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.

Description

This is a kernel live patch module which is automatically loaded by the RPM post-install script to modify the code of a running kernel.

Security fix(es):

  • If the Wake-up on Wireless LAN functionality is configured in the brcmfmac driver, which only works with Broadcom FullMAC chipsets, a malicious event frame can be constructed to trigger a heap buffer overflow in the brcmf_wowl_nd_results() function. This vulnerability can be exploited by compromised chipsets to compromise the host, or when used in combination with another brcmfmac driver flaw (CVE-2019-9503), can be used remotely. This can result in a remote denial of service (DoS). Due to the nature of the flaw, a remote privilege escalation cannot be fully ruled out. (CVE-2019-9500)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgements, and other related information, refer to the CVE page(s) listed in the References section.

Solution

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

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

  • Red Hat Enterprise Linux Server 7 x86_64
  • Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7 x86_64
  • Red Hat Enterprise Linux Server - AUS 7.7 x86_64
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support 7 x86_64
  • Red Hat Enterprise Linux for Power, little endian 7 ppc64le
  • Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.7 ppc64le
  • Red Hat Enterprise Linux Server - TUS 7.7 x86_64
  • Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.7 ppc64le
  • Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.7 x86_64
  • Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7 ppc64le

Fixes

  • BZ - 1701224 - CVE-2019-9500 kernel: brcmfmac heap buffer overflow in brcmf_wowl_nd_results

CVEs

  • CVE-2019-9500

References

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

Red Hat Enterprise Linux Server 7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
x86_64
kpatch-patch-3_10_0-1062-1-2.el7.x86_64.rpm SHA-256: 73c5489e578ed3d3e1f2becad204ed02a4192ed17c85186f1929061b5c4763ec
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.x86_64.rpm SHA-256: d0673c1fbb25855756f6ce05477c1f81de92efa1a9cabe4a62569b3fb75075ab

Red Hat Enterprise Linux for x86_64 - Extended Update Support 7.7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
x86_64
kpatch-patch-3_10_0-1062-1-2.el7.x86_64.rpm SHA-256: 73c5489e578ed3d3e1f2becad204ed02a4192ed17c85186f1929061b5c4763ec
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.x86_64.rpm SHA-256: d0673c1fbb25855756f6ce05477c1f81de92efa1a9cabe4a62569b3fb75075ab

Red Hat Enterprise Linux Server - AUS 7.7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
x86_64
kpatch-patch-3_10_0-1062-1-2.el7.x86_64.rpm SHA-256: 73c5489e578ed3d3e1f2becad204ed02a4192ed17c85186f1929061b5c4763ec
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.x86_64.rpm SHA-256: d0673c1fbb25855756f6ce05477c1f81de92efa1a9cabe4a62569b3fb75075ab

Red Hat Enterprise Linux Server - Extended Life Cycle Support 7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
x86_64
kpatch-patch-3_10_0-1062-1-2.el7.x86_64.rpm SHA-256: 73c5489e578ed3d3e1f2becad204ed02a4192ed17c85186f1929061b5c4763ec
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.x86_64.rpm SHA-256: d0673c1fbb25855756f6ce05477c1f81de92efa1a9cabe4a62569b3fb75075ab

Red Hat Enterprise Linux for Power, little endian 7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
ppc64le
kpatch-patch-3_10_0-1062-1-2.el7.ppc64le.rpm SHA-256: b51fc2866039ec04236fa562c385a3faf790ba0a0321a936f7e10295b2832f17
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.ppc64le.rpm SHA-256: d916b21a76a4df2b260906bd5ccd0c893b3f5e119ea48bdffa6203472831c6c3

Red Hat Enterprise Linux for Power, little endian - Extended Update Support 7.7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
ppc64le
kpatch-patch-3_10_0-1062-1-2.el7.ppc64le.rpm SHA-256: b51fc2866039ec04236fa562c385a3faf790ba0a0321a936f7e10295b2832f17
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.ppc64le.rpm SHA-256: d916b21a76a4df2b260906bd5ccd0c893b3f5e119ea48bdffa6203472831c6c3

Red Hat Enterprise Linux Server - TUS 7.7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
x86_64
kpatch-patch-3_10_0-1062-1-2.el7.x86_64.rpm SHA-256: 73c5489e578ed3d3e1f2becad204ed02a4192ed17c85186f1929061b5c4763ec
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.x86_64.rpm SHA-256: d0673c1fbb25855756f6ce05477c1f81de92efa1a9cabe4a62569b3fb75075ab

Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions 7.7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
ppc64le
kpatch-patch-3_10_0-1062-1-2.el7.ppc64le.rpm SHA-256: b51fc2866039ec04236fa562c385a3faf790ba0a0321a936f7e10295b2832f17
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.ppc64le.rpm SHA-256: d916b21a76a4df2b260906bd5ccd0c893b3f5e119ea48bdffa6203472831c6c3

Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions 7.7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
x86_64
kpatch-patch-3_10_0-1062-1-2.el7.x86_64.rpm SHA-256: 73c5489e578ed3d3e1f2becad204ed02a4192ed17c85186f1929061b5c4763ec
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.x86_64.rpm SHA-256: d0673c1fbb25855756f6ce05477c1f81de92efa1a9cabe4a62569b3fb75075ab

Red Hat Enterprise Linux Server - Extended Life Cycle Support for IBM Power, little endian 7

SRPM
kpatch-patch-3_10_0-1062-1-2.el7.src.rpm SHA-256: 026d41f48df5b07bd699c4eca72c4faf83cfeaf606acbcf38132c9ac16abbe9a
ppc64le
kpatch-patch-3_10_0-1062-1-2.el7.ppc64le.rpm SHA-256: b51fc2866039ec04236fa562c385a3faf790ba0a0321a936f7e10295b2832f17
kpatch-patch-3_10_0-1062-debuginfo-1-2.el7.ppc64le.rpm SHA-256: d916b21a76a4df2b260906bd5ccd0c893b3f5e119ea48bdffa6203472831c6c3

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

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