CVE-2021-1252
Published: 8 April 2021
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.
Priority
Status
| Package | Release | Status |
|---|---|---|
|
clamav Launchpad, Ubuntu, Debian |
bionic |
Released
(0.103.2+dfsg-0ubuntu0.18.04.1)
|
| focal |
Released
(0.103.2+dfsg-0ubuntu0.20.04.1)
|
|
| groovy |
Released
(0.103.2+dfsg-0ubuntu0.20.10.1)
|
|
| hirsute |
Not vulnerable
(0.103.2+dfsg-1)
|
|
| trusty |
Released
(0.103.2+dfsg-0ubuntu0.14.04.1+esm1)
Available with Ubuntu Pro or Ubuntu Pro (Infra-only) |
|
| upstream |
Needs triage
|
|
| xenial |
Released
(0.103.2+dfsg-0ubuntu0.16.04.1)
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score | 7.5 |
| 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 |