Detections
Analytics

Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2021-9215)

high Nessus Plugin ID 149296

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Synopsis

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

Description

The remote Oracle Linux 6 / 7 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2021-9215 advisory.

 - btrfs: fix race when cloning extent buffer during rewind of an old root (Filipe Manana) [Orabug:
 32669454] {CVE-2021-28964}
 - xen-blkback: don't leak persistent grants from xen_blkbk_map() (Jan Beulich) [Orabug: 32697855] {CVE-2021-28688}
 - netfilter: x_tables: Use correct memory barriers. (Mark Tomlinson) [Orabug: 32709125] {CVE-2021-29650}
 - netfilter: x_tables: make xt_replace_table wait until old rules are not used anymore (Florian Westphal) [Orabug: 32709125] {CVE-2021-29650}
 - do_epoll_ctl(): clean the failure exits up a bit (Al Viro) [Orabug: 32759496] {CVE-2020-0466}
 - epoll: Keep a reference on files added to the check list (Marc Zyngier) [Orabug: 32759496] {CVE-2020-0466}
 - HID: core: Sanitize event code and type when mapping input (Marc Zyngier) [Orabug: 32759553] {CVE-2020-0465}
 - floppy: fix lock_fdc() signal handling (Jiri Kosina) [Orabug: 32624116] {CVE-2021-20261}
 - Xen/gnttab: handle p2m update errors on a per-slot basis (Jan Beulich) [Orabug: 32651478] {CVE-2021-28038}
 - n_tty: Fix stall at n_tty_receive_char_special(). (Tetsuo Handa) [Orabug: 32656942] {CVE-2021-20219}
 - fork: fix copy_process(CLONE_PARENT) race with the exiting ->real_parent (Eddy Wu) [Orabug: 32695783] {CVE-2020-35508}

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-2021-9215.html

Plugin Details

Severity: High

ID: 149296

File Name: oraclelinux_ELSA-2021-9215.nasl

Version: 1.5

Type: local

Agent: unix

Published: 5/6/2021

Updated: 10/22/2024

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

Risk Information

VPR

Risk Factor: Medium

Score: 5.9

CVSS v2

Risk Factor: High

Base Score: 7.2

Temporal Score: 5.3

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

CVSS Score Source: CVE-2020-0466

CVSS v3

Risk Factor: High

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-debug-devel, cpe:/o:oracle:linux:7, 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, p-cpe:/a:oracle:linux:kernel-uek-debug, 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: 5/6/2021

Vulnerability Publication Date: 12/14/2020

Reference Information

CVE: CVE-2020-0465, CVE-2020-0466, CVE-2020-35508, CVE-2021-20219, CVE-2021-20261, CVE-2021-28038, CVE-2021-28688, CVE-2021-28964, CVE-2021-29650