Vulnerability CVE-2021-1252

Vulnerability Name:

CVE-2021-1252 (CCN-199689)

Assigned:

2020-11-13

Published:

2021-04-07

Updated:

2022-08-05

Summary:

A vulnerability in the Excel XLM macro parsing module in Clam AntiVirus (ClamAV) Software versions 0.103.0 and 0.103.1 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper error handling that may result in an infinite loop. An attacker could exploit this vulnerability by sending a crafted Excel file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process hang, resulting in a denial of service condition.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network 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

7.5 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/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): Network 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:

7.8 High (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)

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

7.8 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:C)

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

Vulnerability Type:

CWE-835

Vulnerability Consequences:

Denial of Service

References:

Source: MITRE
Type: CNA
CVE-2021-1252

Source: CCN
Type: ClamAV Blog, Wednesday, April 7, 2021
ClamAV 0.103.2 security patch release

Source: CISCO
Type: Release Notes, Vendor Advisory
https://blog.clamav.net/2021/04/clamav-01032-security-patch-release.html

Source: XF
Type: UNKNOWN
clamav-cve20211252-dos(199689)

Vulnerable Configuration:

Configuration 1:

cpe:/a:clamav:clamav:0.103.0:*:*:*:*:*:*:*

OR cpe:/a:clamav:clamav:0.103.1:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:7463	P	clamav-0.103.8-150000.3.44.1 on GA media (Moderate)	2023-06-12
oval:org.opensuse.security:def:3383	P	tftp-5.2-11.6.1 on GA media (Moderate)	2022-06-28
oval:org.opensuse.security:def:2889	P	clamav-0.103.5-3.35.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94519	P	clamav-0.103.5-3.35.1 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:94495	P	arm-trusted-firmware-2.6-150400.4.7 on GA media (Moderate)	2022-06-22
oval:org.opensuse.security:def:27	P	clamav-0.103.2-3.26.1 on GA media (Moderate)	2022-06-13
oval:org.opensuse.security:def:956	P	Security update for expat (Important)	2022-03-04
oval:org.opensuse.security:def:112078	P	clamav-0.103.3-1.4 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:99439	P	(Important)	2021-12-06
oval:org.opensuse.security:def:105621	P	clamav-0.103.3-1.4 on GA media (Moderate)	2021-10-01
oval:org.opensuse.security:def:101208	P	libnetpbm-devel-10.80.1-3.11.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:62045	P	clamav-0.103.2-3.26.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:100803	P	clamav-0.103.2-3.26.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:71786	P	clamav-0.103.2-3.26.1 on GA media (Moderate)	2021-08-09
oval:org.opensuse.security:def:99638	P	(Important)	2021-06-01
oval:org.opensuse.security:def:99943	P	(Important)	2021-05-19
oval:org.opensuse.security:def:111323	P	Security update for clamav (Important)	2021-04-15
oval:org.opensuse.security:def:70200	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:31151	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:59715	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:99045	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:40062	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:55885	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:86534	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:96849	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:73594	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:82554	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:8934	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:92290	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:125517	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:33634	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:69446	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:29347	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:57893	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:89112	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:107874	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:51537	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:84583	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:10060	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:93040	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:70380	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:31606	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:99240	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:41231	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:56005	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:87361	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:43195	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:83269	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:9306	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:92489	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:126688	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:33892	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:69630	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:30062	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:58720	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:89370	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:38103	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:51872	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:85615	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:10240	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:93193	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:8561	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:91900	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:32070	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:23549	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:56974	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:88101	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:44492	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:83389	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:9490	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:92688	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:127085	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:69829	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:30182	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:59457	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:98850	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:38765	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:55170	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:86070	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:8739	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:92095	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:117389	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:32897	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:64472	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:23884	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:57429	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:88413	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:45661	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:84126	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:9689	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:92887	P	Security update for clamav (Important)	2021-04-14
oval:org.opensuse.security:def:60228	P	Security update for clamav (Important)	2021-04-13
oval:org.opensuse.security:def:34405	P	Security update for clamav (Important)	2021-04-13

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