RHEL 7 : kernel-alt (RHSA-2020:2104)

High Nessus Plugin ID 136496

New! Vulnerability Priority Rating (VPR)

Tenable calculates a dynamic VPR for every vulnerability. VPR combines vulnerability information with threat intelligence and machine learning algorithms to predict which vulnerabilities are most likely to be exploited in attacks. Read more about what VPR is and how it's different from CVSS.

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-2020:2104 advisory.

- kernel: out of bounds write in function i2c_smbus_xfer_emulated in drivers/i2c/i2c-core-smbus.c (CVE-2017-18551)

- kernel: double free may be caused by the function allocate_trace_buffer in the file kernel/trace/trace.c (CVE-2017-18595)

- kernel: null pointer dereference in dlpar_parse_cc_property in arch/powerrc/platforms/pseries/dlpar.c causing denial of service (CVE-2019-12614)

- kernel: denial of service in in xfs_setattr_nonsize in fs/xfs/xfs_iops.c (CVE-2019-15538)

- kernel: mounting a crafted ext4 filesystem image, performing some operations, and unmounting can lead to a use-after-free in ext4_put_super in fs/ext4/super.c (CVE-2019-19447)

- kernel: a malicious USB device in the drivers/input/ff- memless.c leads to use-after-free (CVE-2019-19524)

- kernel: use-after-free in __blk_add_trace in kernel/trace/blktrace.c (CVE-2019-19768)

- kernel: out of bounds write in i2c driver leads to local escalation of privilege (CVE-2019-9454)

- Kernel: NetLabel: null pointer dereference while receiving CIPSO packet with null category may cause kernel panic (CVE-2020-10711)

- kernel: out-of-bounds read in set_fdc in drivers/block/floppy.c (CVE-2020-9383)

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/125.html

https://cwe.mitre.org/data/definitions/400.html

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

https://cwe.mitre.org/data/definitions/476.html

https://cwe.mitre.org/data/definitions/787.html

https://access.redhat.com/security/cve/CVE-2017-18551

https://access.redhat.com/security/cve/CVE-2017-18595

https://access.redhat.com/security/cve/CVE-2019-9454

https://access.redhat.com/security/cve/CVE-2019-12614

https://access.redhat.com/security/cve/CVE-2019-15538

https://access.redhat.com/security/cve/CVE-2019-19447

https://access.redhat.com/security/cve/CVE-2019-19524

https://access.redhat.com/security/cve/CVE-2019-19768

https://access.redhat.com/security/cve/CVE-2020-9383

https://access.redhat.com/security/cve/CVE-2020-10711

https://access.redhat.com/errata/RHSA-2020:2104

https://bugzilla.redhat.com/1718176

https://bugzilla.redhat.com/1746777

https://bugzilla.redhat.com/1757368

https://bugzilla.redhat.com/1758671

https://bugzilla.redhat.com/1781679

https://bugzilla.redhat.com/1783459

https://bugzilla.redhat.com/1786164

https://bugzilla.redhat.com/1810685

https://bugzilla.redhat.com/1818818

https://bugzilla.redhat.com/1825116

Plugin Details

Severity: High

ID: 136496

File Name: redhat-RHSA-2020-2104.nasl

Version: 1.3

Type: local

Agent: unix

Published: 2020/05/12

Updated: 2020/11/19

Dependencies: 12634, 122878

Risk Information

Risk Factor: High

VPR Score: 6.7

CVSS Score Source: CVE-2017-18595

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: cpe:/o:redhat:enterprise_linux:7, cpe:/o:redhat:enterprise_linux:7::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-kdump, p-cpe:/a:redhat:enterprise_linux:kernel-kdump-devel, 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 Ease: No known exploits are available

Patch Publication Date: 2020/05/12

Vulnerability Publication Date: 2019/05/30

Reference Information

CVE: CVE-2017-18551, CVE-2017-18595, CVE-2019-9454, CVE-2019-12614, CVE-2019-15538, CVE-2019-19447, CVE-2019-19524, CVE-2019-19768, CVE-2020-9383, CVE-2020-10711

BID: 108550

RHSA: 2020:2104

CWE: 119, 125, 400, 416, 476, 787