Vulnerability CVE-2021-4156

Vulnerability Name:

CVE-2021-4156 (CCN-222487)

Assigned:

2021-04-13

Published:

2021-04-13

Updated:

2023-01-05

Summary:

An out-of-bounds read flaw was found in libsndfile's FLAC codec functionality. An attacker who is able to submit a specially crafted file (via tricking a user to open or otherwise) to an application linked with libsndfile and using the FLAC codec, could trigger an out-of-bounds read that would most likely cause a crash but could potentially leak memory information that could be used in further exploitation of other flaws.

CVSS v3 Severity:

7.1 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H)
6.4 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C)

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

7.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.0 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:P/RL:O/RC:C)

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

7.1 High (REDHAT CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H)
6.4 Medium (REDHAT Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H/E:P/RL:O/RC:C)

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

CVSS v2 Severity:

5.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Medium Authentication (Au): None
Impact Metrics:	Confidentiality (C): Partial Integrity (I): None Availibility (A): Partial

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

Exploitability Metrics:	Access Vector (AV): Local Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-125

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2021-4156

Source: CCN
Type: Red Hat Bugzilla Bug 2027690
(CVE-2021-4156) - CVE-2021-4156 libsndfile: heap out-of-bounds read in src/flac.c in flac_buffer_copy

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

Source: XF
Type: UNKNOWN
libsndfile-cve20214156-bo(222487)

Source: CCN
Type: libsndfile GIT Repository
libsndfile

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

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

Source: CCN
Type: libsndfile Web site
libsndfile

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

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

Vulnerable Configuration:

Configuration RedHat 1:

cpe:/a:redhat:enterprise_linux:8:*:*:*:*:*:*:*

Configuration RedHat 2:

cpe:/a:redhat:enterprise_linux:8::appstream:*:*:*:*:*

Configuration RedHat 3:

cpe:/a:redhat:enterprise_linux:8::crb:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:7504	P	gdk-pixbuf-loader-rsvg-2.52.9-150400.3.3.1 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:7668	P	libsndfile-devel-1.0.28-150000.5.17.1 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:3748	P	Security update for python-ujson (Moderate)	2022-08-04
oval:org.opensuse.security:def:3077	P	gdm-3.10.0.1-54.6.3 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:94707	P	libsndfile-devel-1.0.28-5.15.1 on GA media (Moderate)	2022-06-22
oval:com.redhat.rhsa:def:20221968	P	RHSA-2022:1968: libsndfile security update (Moderate)	2022-05-10
oval:org.opensuse.security:def:99231	P	(Important)	2022-03-24
oval:org.opensuse.security:def:119115	P	Security update for libsndfile (Important)	2022-02-17
oval:org.opensuse.security:def:112834	P	libsndfile-devel-1.0.31-3.1 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:96240	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:1534	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:10436	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:92679	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:102918	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:106801	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:9481	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:70035	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:99430	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:111872	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:6298	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:64837	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:96222	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:102098	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:109584	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:9895	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:92086	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:102892	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:106120	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:9120	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:69820	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:119313	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:96251	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:73959	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:92878	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:102924	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:109558	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:9680	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:70371	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:99629	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:67387	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:118818	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:96228	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:109590	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:10231	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:92281	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:102902	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:106319	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:9131	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:70019	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:99036	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:119496	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:96261	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:76455	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:96202	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:103030	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:109568	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:9879	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:70570	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:99828	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:105726	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:8730	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:68593	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:119008	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:96234	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:947	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:109684	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:10430	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:92480	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:102912	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:106518	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:9141	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:70029	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:119681	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:96212	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:101639	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:109578	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:9889	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:70576	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:100139	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:105921	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:8925	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:69621	P	Security update for libsndfile (Important)	2022-01-11
oval:org.opensuse.security:def:29496	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:52038	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:38207	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:87579	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:125795	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:31754	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:57197	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:83378	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:6157	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:23778	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:44928	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:89531	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:34053	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:59616	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:85838	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:30171	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:55319	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:39146	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:88275	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:126958	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:32288	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:57577	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:83498	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:24050	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:45938	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:34678	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:59876	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:86218	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:30291	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:55994	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:40498	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:88592	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:127356	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:33115	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:58111	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:84293	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:26225	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:51766	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:60501	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:86752	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:31374	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:56114	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:82703	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:5340	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:41508	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:43576	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:89271	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:33793	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:58938	P	Security update for libsndfile (Important)	2022-01-05
oval:org.opensuse.security:def:84751	P	Security update for libsndfile (Important)	2022-01-05

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