RHEL 7 : kernel (RHSA-2020:0103)

Medium Nessus Plugin ID 132886

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VPR Score: 6.7

Synopsis

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

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:0103 advisory.

- kernel: kvm: guest userspace to guest kernel write (CVE-2018-10853)

- kernel: TLB flush happens too late on mremap (CVE-2018-18281)

- kernel: Use-after-free in __blk_drain_queue() function in block/blk-core.c (CVE-2018-20856)

- kernel: fix race condition between mmget_not_zero()/get_task_mm() and core dumping (CVE-2019-11599)

- Kernel: KVM: potential use-after-free via kvm_ioctl_create_device() (CVE-2019-6974)

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 affected packages.

See Also

https://cwe.mitre.org/data/definitions/119.html

https://cwe.mitre.org/data/definitions/250.html

https://cwe.mitre.org/data/definitions/362.html

https://cwe.mitre.org/data/definitions/416.html

https://cwe.mitre.org/data/definitions/667.html

https://cwe.mitre.org/data/definitions/672.html

https://access.redhat.com/security/cve/CVE-2018-10853

https://access.redhat.com/security/cve/CVE-2018-18281

https://access.redhat.com/security/cve/CVE-2018-20856

https://access.redhat.com/security/cve/CVE-2019-6974

https://access.redhat.com/security/cve/CVE-2019-11599

https://access.redhat.com/errata/RHSA-2020:0103

https://bugzilla.redhat.com/1589890

https://bugzilla.redhat.com/1645121

https://bugzilla.redhat.com/1671913

https://bugzilla.redhat.com/1705937

https://bugzilla.redhat.com/1738705

Plugin Details

Severity: Medium

ID: 132886

File Name: redhat-RHSA-2020-0103.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/01/15

Updated: 2020/10/22

Dependencies: 12634, 122878

Risk Information

Risk Factor: Medium

VPR Score: 6.7

CVSS Score Source: CVE-2019-11599

CVSS v2.0

Base Score: 6.9

Temporal Score: 5.4

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

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

CVSS v3.0

Base Score: 7

Temporal Score: 6.3

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

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

Vulnerability Information

CPE: cpe:/o:redhat:enterprise_linux:7.4, cpe:/o:redhat:rhel_aus:7.4, cpe:/o:redhat:rhel_aus:7.4::server, cpe:/o:redhat:rhel_e4s:7.4, cpe:/o:redhat:rhel_e4s:7.4::server, cpe:/o:redhat:rhel_tus:7.4, cpe:/o:redhat:rhel_tus:7.4::server, p-cpe:/a:redhat:enterprise_linux:kernel, p-cpe:/a:redhat:enterprise_linux:kernel-abi-whitelists, p-cpe:/a:redhat:enterprise_linux:kernel-bootwrapper, p-cpe:/a:redhat:enterprise_linux:kernel-debug, p-cpe:/a:redhat:enterprise_linux:kernel-debug-devel, p-cpe:/a:redhat:enterprise_linux:kernel-devel, p-cpe:/a:redhat:enterprise_linux:kernel-headers, p-cpe:/a:redhat:enterprise_linux:kernel-tools, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs, p-cpe:/a:redhat:enterprise_linux:kernel-tools-libs-devel, p-cpe:/a:redhat:enterprise_linux:perf, p-cpe:/a:redhat:enterprise_linux:python-perf

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 2020/01/14

Vulnerability Publication Date: 2018/09/11

Reference Information

CVE: CVE-2018-10853, CVE-2018-18281, CVE-2018-20856, CVE-2019-6974, CVE-2019-11599

BID: 105761, 107127, 108113

RHSA: 2020:0103

CWE: 119, 250, 362, 416, 667, 672