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Oracle Linux 6 / 7 : Unbreakable Enterprise kernel (ELSA-2021-9459)

critical Nessus Plugin ID 153557

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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-2021-9459 advisory.

 - fs/namespace.c: fix mountpoint reference counter race (Piotr Krysiuk) [Orabug: 33369433] {CVE-2020-12114} {CVE-2020-12114}
 - btrfs: only search for left_info if there is no right_info in try_merge_free_space (Josef Bacik) [Orabug: 33369414] {CVE-2019-19448} {CVE-2019-19448}
 - cfg80211: wext: avoid copying malformed SSIDs (Will Deacon) [Orabug: 33369390] {CVE-2019-17133}
 - vhost_net: fix possible infinite loop (Jason Wang) [Orabug: 33369374] {CVE-2019-3900} {CVE-2019-3900}
 - vhost: introduce vhost_exceeds_weight() (Jason Wang) [Orabug: 33369374] {CVE-2019-3900}
 - vhost_net: introduce vhost_exceeds_weight() (Jason Wang) [Orabug: 33369374] {CVE-2019-3900}
 - vhost_net: use packet weight for rx handler, too (Paolo Abeni) [Orabug: 33369374] {CVE-2019-3900}
 - vhost-net: set packet weight of tx polling to 2 * vq size (haibinzhang) [Orabug: 33369374] {CVE-2019-3900}
 - mac80211: extend protection against mixed key and fragment cache attacks (Wen Gong) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147} {CVE-2020-24586} {CVE-2020-24587}
 - mac80211: do not accept/forward invalid EAPOL frames (Johannes Berg) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147}
 - mac80211: prevent attacks on TKIP/WEP as well (Johannes Berg) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147}
 - mac80211: check defrag PN against current frame (Johannes Berg) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147}
 - mac80211: add fragment cache to sta_info (Johannes Berg) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147}
 - mac80211: drop A-MSDUs on old ciphers (Johannes Berg) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147} {CVE-2020-24588}
 - cfg80211: mitigate A-MSDU aggregation attacks (Mathy Vanhoef) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147} {CVE-2020-24588}
 - mac80211: properly handle A-MSDUs that start with an RFC 1042 header (Mathy Vanhoef) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147}
 - mac80211: prevent mixed key and fragment cache attacks (Mathy Vanhoef) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147} {CVE-2020-24587} {CVE-2020-24586}
 - mac80211: assure all fragments are encrypted (Mathy Vanhoef) [Orabug: 33369361] {CVE-2020-24586} {CVE-2020-26139} {CVE-2020-24587} {CVE-2020-24588} {CVE-2020-26139} {CVE-2020-26140} {CVE-2020-26141} {CVE-2020-26142} {CVE-2020-26143} {CVE-2020-26144} {CVE-2020-26145} {CVE-2020-26146} {CVE-2020-26147} {CVE-2020-26147}
 - sctp: validate from_addr_param return (Marcelo Ricardo Leitner) [Orabug: 33369303] {CVE-2021-3655}
 - virtio_console: Assure used length from device is limited (Xie Yongji) [Orabug: 33369276] {CVE-2021-38160}
 - net_sched: cls_route: remove the right filter from hashtable (Cong Wang) [Orabug: 33369231] {CVE-2021-3715}
 - HID: make arrays usage and value to be the same (Will McVicker) [Orabug: 33369121] {CVE-2021-0512}

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-2021-9459.html

Plugin Details

Severity: Critical

ID: 153557

File Name: oraclelinux_ELSA-2021-9459.nasl

Version: 1.5

Type: local

Agent: unix

Published: 9/22/2021

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: High

Base Score: 7.5

Temporal Score: 5.9

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

CVSS Score Source: CVE-2019-17133

CVSS v3

Risk Factor: Critical

Base Score: 9.8

Temporal Score: 8.8

Vector: CVSS:3.0/AV:N/AC:L/PR:N/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-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 Available: true

Exploit Ease: Exploits are available

Patch Publication Date: 9/22/2021

Vulnerability Publication Date: 4/25/2019

Reference Information

CVE: CVE-2019-17133, CVE-2019-19448, CVE-2019-3900, CVE-2020-12114, CVE-2020-24586, CVE-2020-24587, CVE-2020-24588, CVE-2020-26139, CVE-2020-26140, CVE-2020-26141, CVE-2020-26142, CVE-2020-26143, CVE-2020-26144, CVE-2020-26145, CVE-2020-26146, CVE-2020-26147, CVE-2021-0512, CVE-2021-3655, CVE-2021-3715, CVE-2021-38160, CVE-2021-40490

IAVA: 2021-A-0222-S, 2021-A-0223-S