RHEL 7 : kpatch-patch (RHSA-2020:0027)

High Nessus Plugin ID 132686

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VPR Score: 7.3

Synopsis

The remote Red Hat host is missing one or more security updates.

Description

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.

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) :

* Kernel: KVM: OOB memory access via mmio ring buffer (CVE-2019-14821)

* kernel: local attacker can trigger multiple use-after-free conditions results in privilege escalation (CVE-2019-15239)

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

Update the affected packages.

See Also

https://access.redhat.com/errata/RHSA-2020:0027

https://access.redhat.com/security/cve/cve-2019-14821

https://access.redhat.com/security/cve/cve-2019-15239

Plugin Details

Severity: High

ID: 132686

File Name: redhat-RHSA-2020-0027.nasl

Version: 1.2

Type: local

Agent: unix

Published: 2020/01/07

Updated: 2020/01/09

Dependencies: 12634

Risk Information

Risk Factor: High

VPR Score: 7.3

CVSS Score Source: CVE-2019-15239

CVSS v2.0

Base Score: 7.2

Temporal Score: 5.3

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

Temporal Vector: CVSS2#E:U/RL:OF/RC:C

CVSS v3.0

Base Score: 7.8

Temporal Score: 6.8

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

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

Vulnerability Information

CPE: p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062-debuginfo, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_1_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_1_1-debuginfo, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_1_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_1_2-debuginfo, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_1, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_1-debuginfo, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_2, p-cpe:/a:redhat:enterprise_linux:kpatch-patch-3_10_0-1062_4_3, cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7.7

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: 2020/01/06

Vulnerability Publication Date: 2019/08/20

Reference Information

CVE: CVE-2019-14821, CVE-2019-15239

RHSA: 2020:0027