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Oracle Linux 7 : kernel (ELSA-2019-1873)

high Nessus Plugin ID 127603

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Synopsis

The remote Oracle Linux host is missing one or more security updates.

Description

The remote Oracle Linux 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-1873 advisory.

 - [net] tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() (Florian Westphal) [1719914 1719915] {CVE-2019-11479}
 - [net] tcp: add tcp_min_snd_mss sysctl (Florian Westphal) [1719914 1719915] {CVE-2019-11479}
 - [net] tcp: tcp_fragment() should apply sane memory limits (Florian Westphal) [1719849 1719850] {CVE-2019-11478}
 - [net] tcp: limit payload size of sacked skbs (Florian Westphal) [1719594 1719595] {CVE-2019-11477}
 - [net] tcp: pass previous skb to tcp_shifted_skb() (Florian Westphal) [1719594 1719595] {CVE-2019-11477}
 - [drm] drm/i915/gvt: Fix mmap range check (Alex Williamson) [1713566 1713567] {CVE-2019-11085}
 - [char] ipmi_si: fix use-after-free of resource->name (Tony Camuso) [1714407 1714408] {CVE-2019-11811}
 - [fs] sunrpc: make visible processing error in bc_svc_process() ('J. Bruce Fields') [1660818 1653675] {CVE-2018-16884}
 - [fs] sunrpc: remove unused xpo_prep_reply_hdr callback ('J. Bruce Fields') [1660818 1653675] {CVE-2018-16884}
 - [fs] sunrpc: remove svc_tcp_bc_class ('J. Bruce Fields') [1660818 1653675] {CVE-2018-16884}
 - [fs] sunrpc: replace svc_serv->sv_bc_xprt by boolean flag ('J. Bruce Fields') [1660818 1653675] {CVE-2018-16884}
 - [fs] sunrpc: use-after-free in svc_process_common() ('J. Bruce Fields') [1660818 1653675] {CVE-2018-16884}
 - [fs] svcauth_gss: Close connection when dropping an incoming message ('J. Bruce Fields') [1660818 1653675] {CVE-2018-16884}
 - [fs] nfsd: COPY and CLONE operations require the saved filehandle to be set (Scott Mayhew) [1672147 1645353] {CVE-2018-16871}

Tenable has extracted the preceding description block directly from the Oracle 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 affected packages.

See Also

https://linux.oracle.com/errata/ELSA-2019-1873.html

Plugin Details

Severity: High

ID: 127603

File Name: oraclelinux_ELSA-2019-1873.nasl

Version: 1.8

Type: local

Agent: unix

Published: 8/12/2019

Updated: 10/22/2024

Supported Sensors: Continuous Assessment, Frictionless Assessment Agent, Nessus Agent, Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.1

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

CVSS Score Source: CVE-2019-11811

CVSS v3

Risk Factor: High

Base Score: 8

Temporal Score: 7

Vector: CVSS:3.0/AV:A/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

CVSS Score Source: CVE-2018-16884

Vulnerability Information

CPE: p-cpe:/a:oracle:linux:kernel-abi-whitelists, p-cpe:/a:oracle:linux:kernel-tools-libs-devel, p-cpe:/a:oracle:linux:bpftool, p-cpe:/a:oracle:linux:kernel-devel, p-cpe:/a:oracle:linux:kernel-tools-libs, p-cpe:/a:oracle:linux:perf, cpe:/o:oracle:linux:7, p-cpe:/a:oracle:linux:kernel-tools, p-cpe:/a:oracle:linux:python-perf, p-cpe:/a:oracle:linux:kernel-debug-devel, p-cpe:/a:oracle:linux:kernel-debug, p-cpe:/a:oracle:linux:kernel-headers, p-cpe:/a:oracle:linux:kernel

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

Exploit Ease: No known exploits are available

Patch Publication Date: 7/30/2019

Vulnerability Publication Date: 11/30/2018

Reference Information

CVE: CVE-2018-16871, CVE-2018-16884, CVE-2019-11085, CVE-2019-11811

RHSA: 2019:1873