CVE-2021-1252

2021-04-0800:00:00

ubuntu.com

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

7.8 High

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

COMPLETE

AV:N/AC:L/Au:N/C:N/I:N/A:C

0.002 Low

EPSS

Percentile

59.4%

JSON

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.

OSVersionArchitecturePackageVersionFilename
ubuntu18.04noarchclamav< 0.103.2+dfsg-0ubuntu0.18.04.1UNKNOWN
ubuntu20.04noarchclamav< 0.103.2+dfsg-0ubuntu0.20.04.1UNKNOWN
ubuntu20.10noarchclamav< 0.103.2+dfsg-0ubuntu0.20.10.1UNKNOWN
ubuntu14.04noarchclamav< 0.103.2+dfsg-0ubuntu0.14.04.1+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-onlyUNKNOWN
ubuntu16.04noarchclamav< 0.103.2+dfsg-0ubuntu0.16.04.1UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	18.04	noarch	clamav	< 0.103.2+dfsg-0ubuntu0.18.04.1	UNKNOWN
ubuntu	20.04	noarch	clamav	< 0.103.2+dfsg-0ubuntu0.20.04.1	UNKNOWN
ubuntu	20.10	noarch	clamav	< 0.103.2+dfsg-0ubuntu0.20.10.1	UNKNOWN
ubuntu	14.04	noarch	clamav	< 0.103.2+dfsg-0ubuntu0.14.04.1+esm1) Available with Ubuntu Pro or Ubuntu Pro (Infra-only	UNKNOWN
ubuntu	16.04	noarch	clamav	< 0.103.2+dfsg-0ubuntu0.16.04.1	UNKNOWN