Vulnerability Name:

CVE-2021-4115 (CCN-219981)

Assigned:2021-12-14
Published:2022-02-14
Updated:2023-06-12
Summary:polkit is vulnerable to a denial of service, caused by a file descriptor leak flaw. By sending a specially-crafted request, a local attacker could exploit this vulnerability to cause the application to crash.
CVSS v3 Severity:5.5 Medium (CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H)
4.8 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H/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): None
Integrity (I): None
Availibility (A): High
6.2 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.4 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
6.2 Medium (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
5.4 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)
Exploitability Metrics:Attack Vector (AV): Local
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:2.1 Low (CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:P)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Authentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Partial
4.9 Medium (CCN CVSS v2 Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Local
Access Complexity (AC): Low
Athentication (Au): None
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2021-4115

Source: secalert@redhat.com
Type: UNKNOWN
secalert@redhat.com

Source: secalert@redhat.com
Type: Third Party Advisory
secalert@redhat.com

Source: XF
Type: UNKNOWN
polkit-cve20214115-dos(219981)

Source: secalert@redhat.com
Type: Patch, Third Party Advisory
secalert@redhat.com

Source: CCN
Type: GHSL-2021-077
file descriptor exhaustion in polkit

Source: secalert@redhat.com
Type: Exploit, Issue Tracking, Patch, Third Party Advisory
secalert@redhat.com

Source: secalert@redhat.com
Type: Mailing List, Third Party Advisory
secalert@redhat.com

Source: CCN
Type: oss-sec Mailing List, Thu, 17 Feb 2022 16:35:38 -0500
CVE-2021-4115: polkit: file descriptor leak allows an unprivileged user to cause a crash

Source: CCN
Type: oss-sec Mailing List, Fri, 18 Feb 2022 11:19:27 -0800
Re: CVE-2021-4115: polkit: file descriptor leak allows an unprivileged user to cause a crash

Source: CCN
Type: Mend Vulnerability Database
CVE-2021-4115

Source: secalert@redhat.com
Type: Patch, Third Party Advisory
secalert@redhat.com

Vulnerable Configuration:Configuration RedHat 1:
  • cpe:/o:redhat:enterprise_linux:8:*:*:*:*:*:*:*
    • Configuration RedHat 2:
  • cpe:/o:redhat:enterprise_linux:8::baseos:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    oval:org.opensuse.security:def:7646
    P
    		libpolkit-agent-1-0-121-150500.1.6 on GA media (Moderate)
    2023-06-12
    oval:org.opensuse.security:def:3059
    P
    		e2fsprogs-1.43.8-3.8.1 on GA media (Moderate)
    2022-06-28
    oval:org.opensuse.security:def:94689
    P
    		libpolkit0-0.116-3.9.1 on GA media (Moderate)
    2022-06-22
    oval:com.redhat.rhsa:def:20221546
    P
    		RHSA-2022:1546: polkit security update (Moderate)
    2022-04-26
    oval:org.opensuse.security:def:5348
    P
    		Security update for polkit (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:93482
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:101640
    P
    		Security update for polkit (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:94270
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:42341
    P
    		Security update for polkit (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:100082
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:6168
    P
    		Security update for polkit (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:93633
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:948
    P
    		Security update for polkit (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:99213
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:94477
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:93164
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:100420
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:6357
    P
    		Security update for polkit (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:93844
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:99487
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:93322
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:100754
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:119116
    P
    		Security update for polkit (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:94056
    P
    		 (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:42198
    P
    		Security update for polkit (Moderate)
    2022-02-18
    oval:org.opensuse.security:def:99749
    P
    		 (Moderate)
    2022-02-18
    BACK