Detections
Analytics

Oracle Linux 7 : Unbreakable Enterprise kernel (ELSA-2020-5885)

high Nessus Plugin ID 141396

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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-2020-5885 advisory.

 - ext4: fix potential negative array index in do_split() (Eric Sandeen) [Orabug: 31895330] {CVE-2020-14314}
 - mm/hugetlb: fix a race between hugetlb sysctl handlers (Muchun Song) [Orabug: 31884238] {CVE-2020-25285}
 - rbd: require global CAP_SYS_ADMIN for mapping and unmapping (Ilya Dryomov) [Orabug: 31884165] {CVE-2020-25284}
 - nfs: Fix getxattr kernel panic and memory overflow (Jeffrey Mitchell) [Orabug: 31872904] {CVE-2020-25212}
 - net/packet: fix overflow in tpacket_rcv (Or Cohen) [Orabug: 31866489] {CVE-2020-14386} {CVE-2020-14386}
 - lib: Reduce user_access_begin() boundaries in strncpy_from_user() and strnlen_user() (Christophe Leroy) [Orabug: 29623005] {CVE-2018-20669}
 - x86: uaccess: Inhibit speculation past access_ok() in user_access_begin() (Will Deacon) [Orabug:
 29623005] {CVE-2018-20669}
 - arch/openrisc: Fix issues with access_ok() (Stafford Horne) [Orabug: 29623005] {CVE-2018-20669}
 - Fix 'acccess_ok()' on alpha and SH (Linus Torvalds) [Orabug: 29623005] {CVE-2018-20669}
 - make 'user_access_begin()' do 'access_ok()' (Linus Torvalds) [Orabug: 29623005] {CVE-2018-20669}
 - btrfs: merge btrfs_find_device and find_device (Anand Jain) [Orabug: 31351744] {CVE-2019-18885}
 - sctp: implement memory accounting on tx path (Xin Long) [Orabug: 31351958] {CVE-2019-3874}
 - Revert 'zram: convert remaining CLASS_ATTR() to CLASS_ATTR_RO()' (Wade Mealing) [Orabug: 31510723] {CVE-2020-10781}
 - x86/speculation: Avoid force-disabling IBPB based on STIBP and enhanced IBRS. (Anthony Steinhauser) [Orabug: 31557803] {CVE-2020-10767}
 - random32: update the net random state on interrupt and activity (Willy Tarreau) [Orabug: 31698082] {CVE-2020-16166}
 - vgacon: Fix for missing check in scrollback handling (Yunhai Zhang) [Orabug: 31705119] {CVE-2020-14331} {CVE-2020-14331}
 - nfsd: apply umask on fs without ACL support (J. Bruce Fields) [Orabug: 31779886] {CVE-2020-24394}

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-2020-5885.html

Plugin Details

Severity: High

ID: 141396

File Name: oraclelinux_ELSA-2020-5885.nasl

Version: 1.7

Type: local

Agent: unix

Published: 10/12/2020

Updated: 11/1/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.6

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

CVSS Score Source: CVE-2020-14386

CVSS v3

Risk Factor: High

Base Score: 7.8

Temporal Score: 7

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:P/RL:O/RC:C

Vulnerability Information

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

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

Exploit Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 10/12/2020

Vulnerability Publication Date: 1/23/2019

Reference Information

CVE: CVE-2018-20669, CVE-2019-18885, CVE-2019-3874, CVE-2020-10767, CVE-2020-10781, CVE-2020-14314, CVE-2020-14331, CVE-2020-14386, CVE-2020-16166, CVE-2020-24394, CVE-2020-25212, CVE-2020-25284, CVE-2020-25285

BID: 106748, 107488