Oracle Linux 5 / 6 : Unbreakable Enterprise kernel (ELSA-2019-4689)

high Nessus Plugin ID 125966

Synopsis

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

Description

The remote Oracle Linux 5 / 6 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2019-4689 advisory.

- tcp: enforce tcp_min_snd_mss in tcp_mtu_probing() (Eric Dumazet) [Orabug: 29886601] {CVE-2019-11477}
- tcp: add tcp_min_snd_mss sysctl (Eric Dumazet) [Orabug: 29884308] {CVE-2019-11479}
- tcp: tcp_fragment() should apply sane memory limits (Eric Dumazet) [Orabug: 29884308] {CVE-2019-11478}
- tcp: fix fack_count accounting on tcp_shift_skb_data() (Joao Martins) [Orabug: 29890843] {CVE-2019-11477}

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-2019-4689.html

Plugin Details

Severity: High

ID: 125966

File Name: oraclelinux_ELSA-2019-4689.nasl

Version: 1.12

Type: local

Agent: unix

Published: 6/18/2019

Updated: 11/1/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

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

CVSS Score Source: CVE-2019-11477

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

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

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

CVSS Score Source: CVE-2019-11479

Vulnerability Information

CPE: cpe:/o:oracle:linux:5, p-cpe:/a:oracle:linux:kernel-uek-debug-devel, p-cpe:/a:oracle:linux:kernel-uek-debug, p-cpe:/a:oracle:linux:kernel-uek-devel, p-cpe:/a:oracle:linux:kernel-uek-doc, p-cpe:/a:oracle:linux:kernel-uek-firmware, p-cpe:/a:oracle:linux:kernel-uek, cpe:/o:oracle:linux:6

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: 6/17/2019

Vulnerability Publication Date: 6/13/2019

Reference Information

CVE: CVE-2019-11477, CVE-2019-11478, CVE-2019-11479