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Red Hat 7: RHSA-2018:3651-01 Moderate: Kernel Buffer Overflow & DoS

red hat
Calendar Grey November 27, 2018
Dist Redhat Esm H88
New update released for Red Hat Enterprise Linux 7 tackling moderate vulnerabilities in the kernel along with various bug resolutions.
An update for kernel is now available for Red Hat Enterprise Linux 7

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.

Summary

The kernel packages contain the Linux kernel, the core of any Linux operating system.
Security Fix(es):
* kernel: stack-based buffer overflow in chap_server_compute_md5() in iscsi target (CVE-2018-14633)
* kernel: NULL pointer dereference in af_netlink.c:__netlink_ns_capable() allows for denial of service (CVE-2018-14646)
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 Vincent Pelletier for reporting CVE-2018-14633 and Christian Brauner for reporting CVE-2018-14646.
Bug Fix(es):
These updated kernel packages include also numerous bug fixes. Space precludes documenting all of the bug fixes in this advisory. See the descriptions in the related Knowledge Article: https://access.redhat.com/articles/3714371

Topics%20covered

Topics Covered

security advisory moderate denial of service buffer overflow red hat kernel update bug fix

References

https://access.redhat.com/security/cve/CVE-2018-14633 https://access.redhat.com/security/cve/CVE-2018-14646 https://access.redhat.com/security/updates/classification/#moderate https://access.redhat.com/articles/3714371

Package List

Red Hat Enterprise Linux Client (v. 7):
Source: kernel-3.10.0-957.1.3.el7.src.rpm
noarch: kernel-abi-whitelists-3.10.0-957.1.3.el7.noarch.rpm kernel-doc-3.10.0-957.1.3.el7.noarch.rpm
x86_64: bpftool-3.10.0-957.1.3.el7.x86_64.rpm kernel-3.10.0-957.1.3.el7.x86_64.rpm kernel-debug-3.10.0-957.1.3.el7.x86_64.rpm kernel-debug-debuginfo-3.10.0-957.1.3.el7.x86_64.rpm kernel-debug-devel-3.10.0-957.1.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.1.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.1.3.el7.x86_64.rpm kernel-devel-3.10.0-957.1.3.el7.x86_64.rpm kernel-headers-3.10.0-957.1.3.el7.x86_64.rpm kernel-tools-3.10.0-957.1.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.1.3.el7.x86_64.rpm kernel-tools-libs-3.10.0-957.1.3.el7.x86_64.rpm perf-3.10.0-957.1.3.el7.x86_64.rpm perf-debuginfo-3.10.0-957.1.3.el7.x86_64.rpm python-perf-3.10.0-957.1.3.el7.x86_64.rpm python-perf-debuginfo-3.10.0-957.1.3.el7.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: kernel-debug-debuginfo-3.10.0-957.1.3.el7.x86_64.rpm kernel-debuginfo-3.10.0-957.1.3.el7.x86_64.rpm kernel-debuginfo-common-x86_64-3.10.0-957.1.3.el7.x86_64.rpm kernel-tools-debuginfo-3.10.0-957.1.3.el7.x86_64.rpm kernel-tools-libs-devel-3.10.0-957.1.3.el7.x86_64.rpm

Read the Full Advisory


Advisory ID: RHSA-2018:3651-01
Product: Red Hat Enterprise Linux
Advisory URL: https://access.redhat.com/errata/RHSA-2018:3651
Issue date: 2018-11-26

Topic

An update for kernel is now available for Red Hat Enterprise Linux 7.Red Hat Product Security has rated this update as having a security impactof Moderate. A Common Vulnerability Scoring System (CVSS) base score, whichgives a detailed severity rating, is available for each vulnerability fromthe CVE link(s) in the References section.

Topics%20covered

Topics Covered

security advisory moderate denial of service buffer overflow red hat kernel update bug fix

Relevant Releases Architectures

Red Hat Enterprise Linux Client (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Client Optional (v. 7) - x86_64

Red Hat Enterprise Linux ComputeNode (v. 7) - noarch, x86_64

Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64

Red Hat Enterprise Linux Server (v. 7) - noarch, ppc64, ppc64le, s390x, x86_64

Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, x86_64

Red Hat Enterprise Linux Workstation (v. 7) - noarch, x86_64

Red Hat Enterprise Linux Workstation Optional (v. 7) - x86_64

Bugs Fixed

1626035 - CVE-2018-14633 kernel: stack-based buffer overflow in chap_server_compute_md5() in iscsi target

1630124 - CVE-2018-14646 kernel: NULL pointer dereference in af_netlink.c:__netlink_ns_capable() allows for denial of service

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