CVE-2021-1405 is a denial-of-service vulnerability in the email parsing module of Clam AntiVirus (ClamAV) versions 0.103.1 and earlier, affecting various ClamAV and Debian Linux distributions. This flaw, caused by improper variable initialization leading to a NULL pointer read, allows an unauthenticated, remote attacker to crash the ClamAV scanning process by sending a specially crafted email. With a CVSS score of 7.5 (High), it presents a low-complexity attack vector with no user interaction required, resulting in a denial-of-service impact. Currently, there is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
<= 0.103.1CPE match | cpe:2.3:a:clam_anti-virus:clamav:*:*:*:*:*:*:*:* | ||
<= 0.103.1CPE matchmatch criteria | cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:* | ||
9.0CPE matchmatch criteria | cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* |
CVSS version used by this source: 3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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