Oracle Linux 6 : Unbreakable Enterprise kernel (ELSA-2019-4577)

High Nessus Plugin ID 122805

Synopsis

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

Description

Description of changes:

[2.6.39-400.307.1.el6uek]
- proc: restrict kernel stack dumps to root (John Donnelly) [Orabug: 29114880] {CVE-2018-17972}
- alarmtimer: Prevent overflow for relative nanosleep (Thomas Gleixner) [Orabug: 29269182] {CVE-2018-13053}
- ext4: only look at the bg_flags field if it is valid (Theodore Ts'o) [Orabug: 29409428] {CVE-2018-10876} {CVE-2018-10876}
- vfs: Add sb_rdonly(sb) to query the MS_RDONLY flag on s_flags (David Howells) [Orabug: 29409428] {CVE-2018-10876}
- net: Set sk_prot_creator when cloning sockets to the right proto (Christoph Paasch) [Orabug: 29422741] {CVE-2018-9568}

Solution

Update the affected unbreakable enterprise kernel packages.

See Also

https://oss.oracle.com/pipermail/el-errata/2019-March/008524.html

Plugin Details

Severity: High

ID: 122805

File Name: oraclelinux_ELSA-2019-4577.nasl

Version: 1.7

Type: local

Agent: unix

Published: 2019/03/13

Updated: 2020/02/05

Dependencies: 12634, 122878

Risk Information

Risk Factor: High

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

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

Exploit Ease: No known exploits are available

Patch Publication Date: 2019/03/12

Vulnerability Publication Date: 2018/07/02

Reference Information

CVE: CVE-2018-10876, CVE-2018-13053, CVE-2018-17972, CVE-2018-9568