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RHEL 7 : kernel-alt (RHSA-2019:1350)

medium Nessus Plugin ID 125713

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Synopsis

The remote Red Hat host is missing a security update for kernel-alt.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2019:1350 advisory.

 The kernel-alt packages provide the Linux kernel version 4.x.

 Security Fix(es):

 * kernel: NULL pointer dereference in fs/xfs/libxfs/xfs_inode_buf.c (CVE-2018-13095)

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

 Bug Fix(es):

 * [rhel-alt] Could not remove the function from /sys/kernel/debug/tracing/kprobe_events (BZ#1677171)

 * RHEL-ALT-7.6z: usage of stale vma in do_fault() can lead to a crash (BZ#1679243)

 * RHEL-Alt-7.6 - Backport support for software count cache flush Spectre v2 mitigation (BZ#1692682)

 * RHEL-Alt-7.6 - [LTC Test][SR-IOV]: Guest with VF pass-through crashes during reboot operation in a loop.
 (kvm) (libvirt/kernel) (BZ#1693146)

 * RHEL-Alt-7.6 - Tolerate new s390x crypto hardware for migration (BZ#1695643)

Tenable has extracted the preceding description block directly from the Red Hat Enterprise Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the RHEL kernel-alt package based on the guidance in RHSA-2019:1350.

See Also

http://www.nessus.org/u?3b72a0b5

https://access.redhat.com/errata/RHSA-2019:1350

https://access.redhat.com/security/updates/classification/#low

https://bugzilla.redhat.com/show_bug.cgi?id=1597775

Plugin Details

Severity: Medium

ID: 125713

File Name: redhat-RHSA-2019-1350.nasl

Version: 1.9

Type: local

Agent: unix

Published: 6/5/2019

Updated: 11/6/2024

Supported Sensors: Frictionless Assessment AWS, Frictionless Assessment Azure, Frictionless Assessment Agent, Nessus Agent, Agentless Assessment, Continuous Assessment, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

Vendor

Vendor Severity: Low

CVSS v2

Risk Factor: Medium

Base Score: 4.3

Temporal Score: 3.2

Vector: CVSS2#AV:N/AC:M/Au:N/C:N/I:N/A:P

CVSS Score Source: CVE-2018-13095

CVSS v3

Risk Factor: Medium

Base Score: 5.5

Temporal Score: 4.8

Vector: CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-headers, cpe:/o:redhat:enterprise_linux:7, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper, p-cpe:/a:redhat:enterprise_linux:kernel-alt, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:python-perf, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:perf

Required KB Items: Host/local_checks_enabled, Host/RedHat/release, Host/RedHat/rpm-list, Host/cpu

Exploit Ease: No known exploits are available

Patch Publication Date: 6/4/2019

Vulnerability Publication Date: 7/3/2018

Reference Information

CVE: CVE-2018-13095

CWE: 476

RHSA: 2019:1350