Detections
Analytics

Oracle Linux 7 / 8 : Unbreakable Enterprise kernel-container (ELSA-2021-9141)

high Nessus Plugin ID 148458

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Synopsis

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

Description

The remote Oracle Linux 7 / 8 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9141 advisory.

 - bpf, selftests: Fix up some test_verifier cases for unprivileged (Piotr Krysiuk) [Orabug: 32656761] {CVE-2020-27170} {CVE-2020-27171}
 - bpf: Add sanity check for upper ptr_limit (Piotr Krysiuk) [Orabug: 32656761] {CVE-2020-27170} {CVE-2020-27171}
 - bpf: Simplify alu_limit masking for pointer arithmetic (Piotr Krysiuk) [Orabug: 32656761] {CVE-2020-27170} {CVE-2020-27171}
 - bpf: Fix off-by-one for area size in creating mask to left (Piotr Krysiuk) [Orabug: 32656761] {CVE-2020-27170} {CVE-2020-27171}
 - bpf: Prohibit alu ops for pointer types not defining ptr_limit (Piotr Krysiuk) [Orabug: 32656761] {CVE-2020-27170} {CVE-2020-27171}
 - selftests/bpf: Test access to bpf map pointer (Andrey Ignatov) [Orabug: 32656761] {CVE-2020-27170} {CVE-2020-27171}
 - bpf: Fix truncation handling for mod32 dst reg wrt zero (Daniel Borkmann) [Orabug: 32673813] {CVE-2021-3444}
 - bpf: Fix 32 bit src register truncation on div/mod (Daniel Borkmann) [Orabug: 32673813] {CVE-2021-3444}
 - scsi: iscsi: Verify lengths on passthrough PDUs (Chris Leech) [Orabug: 32603378] {CVE-2021-27363} {CVE-2021-27364} {CVE-2021-27365}
 - scsi: iscsi: Ensure sysfs attributes are limited to PAGE_SIZE (Chris Leech) [Orabug: 32603378] {CVE-2021-27363} {CVE-2021-27364} {CVE-2021-27365}
 - scsi: iscsi: Report connection state in sysfs (Gabriel Krisman Bertazi) [Orabug: 32603378] {CVE-2021-27363} {CVE-2021-27364} {CVE-2021-27365}
 - sysfs: Add sysfs_emit and sysfs_emit_at to format sysfs output (Joe Perches) [Orabug: 32603378] {CVE-2021-27363} {CVE-2021-27364} {CVE-2021-27365}
 - scsi: iscsi: Restrict sessions and handles to admin capabilities (Lee Duncan) [Orabug: 32603378] {CVE-2021-27363} {CVE-2021-27364} {CVE-2021-27365}
 - drm/nouveau: bail out of nouveau_channel_new if channel init fails (Frantisek Hrbata) [Orabug:
 32591559] {CVE-2020-25639}

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 kernel-uek-container and / or kernel-uek-container-debug packages.

See Also

https://linux.oracle.com/errata/ELSA-2021-9141.html

Plugin Details

Severity: High

ID: 148458

File Name: oraclelinux_ELSA-2021-9141.nasl

Version: 1.6

Type: local

Agent: unix

Published: 4/13/2021

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: 4.6

Temporal Score: 3.6

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

CVSS Score Source: CVE-2021-3444

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-container, p-cpe:/a:oracle:linux:kernel-uek-container-debug, cpe:/o:oracle:linux:7, cpe:/o:oracle:linux:8

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: 3/31/2021

Vulnerability Publication Date: 3/4/2021

Reference Information

CVE: CVE-2020-25639, CVE-2020-27170, CVE-2020-27171, CVE-2020-28588, CVE-2021-27363, CVE-2021-27364, CVE-2021-27365, CVE-2021-3444