RHEL 7 : kernel-alt (RHSA-2020:0740)

critical Nessus Plugin ID 134361

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Synopsis

The remote Red Hat host is missing one or more security updates for kernel-alt.

Description

The remote Redhat Enterprise Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2020:0740 advisory.

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

Security Fix(es):

* kernel: rtl_p2p_noa_ie in drivers/net/wireless/realtek/rtlwifi/ps.c in the Linux kernel lacks a certain upper-bound check, leading to a buffer overflow (CVE-2019-17666)

* kernel: nfs: NULL pointer dereference due to an anomalized NFS message sequence (CVE-2018-16871)

* kernel: Heap address information leak while using L2CAP_GET_CONF_OPT (CVE-2019-3459)

* kernel: Heap address information leak while using L2CAP_PARSE_CONF_RSP (CVE-2019-3460)

* kernel: sensitive information disclosure from kernel stack memory via HIDPCONNADD command (CVE-2019-11884)

* kernel: powerpc: local user can read vector registers of other users' processes via a Facility Unavailable exception (CVE-2019-15030)

* kernel: memory leak in register_queue_kobjects() in net/core/net-sysfs.c leads to denial of service (CVE-2019-15916)

* kernel: integer overflow in tcp_ack_update_rtt in net/ipv4/tcp_input.c (CVE-2019-18805)

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):

* lpfc: NVMe/FC target test machine rhel-storage-62 crashes on boot when connected to FC switch (BZ#1623205)

* kernel BUG at fs/nfs_common/grace.c:107! (BZ#1637543)

* RHEL-Alt-7.6 - Need a fix for kernel bug cap_inode_getsecurity: use d_find_any_alias() instead of d_find_alias() (BZ#1711934)

* Backport fs/dcache.c: add cond_resched() in shrink_dentry_list() (32785c0539b7) [rhel-alt-7.6.z] (BZ#1758861)

* [RHEL-ALT-7.6.z][arm64] iommu/iova: Fix tracking of recently failed iova address (BZ#1780500)

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

Note that Nessus has not tested for these issues 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-2020:0740.

Plugin Details

Severity: Critical

ID: 134361

File Name: redhat-RHSA-2020-0740.nasl

Version: 1.13

Type: local

Agent: unix

Family: Red Hat Local Security Checks

Published: 3/10/2020

Updated: 11/7/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

Vendor

Vendor Severity: Important

CVSS v2

Risk Factor: High

Base Score: 8.3

Temporal Score: 6.5

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

CVSS Score Source: CVE-2019-17666

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

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

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

CVSS Score Source: CVE-2019-18805

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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 3/9/2020

Vulnerability Publication Date: 11/30/2018

Reference Information

CVE: CVE-2018-16871, CVE-2019-11884, CVE-2019-15030, CVE-2019-15916, CVE-2019-17666, CVE-2019-18805, CVE-2019-3459, CVE-2019-3460

BID: 106565, 107910, 108299, 108547

CWE: 120, 190, 200, 400, 476

RHSA: 2020:0740

Detections

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