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F5 Networks BIG-IP : Linux kernel vulnerability for (K52379673)

high Nessus Plugin ID 160630

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Synopsis

The remote device is missing a vendor-supplied security patch.

Description

The version of F5 Networks BIG-IP installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the K52379673 advisory.

 - A read-after-free memory flaw was found in the Linux kernel's garbage collection for Unix domain socket file handlers in the way users call close() and fget() simultaneously and can potentially trigger a race condition. This flaw allows a local user to crash the system or escalate their privileges on the system.
 This flaw affects Linux kernel versions prior to 5.16-rc4. (CVE-2021-4083)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

The vendor has acknowledged the vulnerability, but no solution has been provided.
Refer to the vendor for remediation guidance.

See Also

https://my.f5.com/manage/s/article/K52379673

Plugin Details

Severity: High

ID: 160630

File Name: f5_bigip_SOL52379673.nasl

Version: 1.6

Type: local

Published: 5/5/2022

Updated: 5/7/2024

Configuration: Enable paranoid mode

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Medium

Score: 6.7

CVSS v2

Risk Factor: Medium

Base Score: 6.9

Temporal Score: 5.4

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

CVSS Score Source: CVE-2021-4083

CVSS v3

Risk Factor: High

Base Score: 7

Temporal Score: 6.3

Vector: CVSS:3.0/AV:L/AC:H/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: cpe:/a:f5:big-ip_access_policy_manager, cpe:/a:f5:big-ip_advanced_firewall_manager, cpe:/a:f5:big-ip_application_security_manager, cpe:/a:f5:big-ip_domain_name_system, cpe:/a:f5:big-ip_global_traffic_manager, cpe:/a:f5:big-ip_local_traffic_manager, cpe:/a:f5:big-ip_policy_enforcement_manager, cpe:/a:f5:big-ip_wan_optimization_manager, cpe:/h:f5:big-ip_protocol_security_manager, cpe:/h:f5:big-ip

Required KB Items: Host/local_checks_enabled, Settings/ParanoidReport, Host/BIG-IP/hotfix, Host/BIG-IP/modules, Host/BIG-IP/version

Exploit Available: true

Exploit Ease: Exploits are available

Vulnerability Publication Date: 1/18/2022

Reference Information

CVE: CVE-2021-4083