Vulnerability 218324 - CERT Civis.Net

Vulnerability Name:

CCN-218324

Published:

2022-01-27

Updated:

2022-01-27

Summary:

Linux Kernel could allow a local authenticated attacker to obtain sensitive information, caused by a use-after-free flaw in erroneous error handling after fd_install() call. By sending a specially-crafted request, an attacker could exploit this vulnerability to gain access to files opened by other processes on the system, and use this information to launch further attacks against the affected system.

CVSS v3 Severity:

5.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N)
4.8 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N/E:U/RL:O/RC:C)

Exploitability Metrics:	Attack Vector (AV): Local Attack Complexity (AC): Low Privileges Required (PR): Low User Interaction (UI): None
Scope:	Scope (S): Unchanged
Impact Metrics:	Confidentiality (C): High Integrity (I): None Availibility (A): None

CVSS v2 Severity:

4.6 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:S/C:C/I:N/A:N)

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): None Availibility (A): None