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CVE-2021-1252

Publication date 8 April 2021

Last updated 24 July 2024

Ubuntu priority

Medium

Why this priority?

Cvss 3 Severity Score

7.5 · High

Score breakdown

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.

Status

Package Ubuntu Release Status
clamav 21.04 hirsute
Not affected
20.10 groovy
Fixed 0.103.2+dfsg-0ubuntu0.20.10.1
20.04 LTS focal
Fixed 0.103.2+dfsg-0ubuntu0.20.04.1
18.04 LTS bionic
Fixed 0.103.2+dfsg-0ubuntu0.18.04.1
16.04 LTS xenial
Fixed 0.103.2+dfsg-0ubuntu0.16.04.1
14.04 LTS trusty

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Severity score breakdown

Parameter Value
Base score 7.5 · High
Attack vector Network
Attack complexity Low
Privileges required None
User interaction None
Scope Unchanged
Confidentiality None
Integrity impact None
Availability impact High
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

Related Ubuntu Security Notices (USN)

Other references