Out-of-bounds Read in Cisco Clamav
CVE-2022-20698
A vulnerability in the OOXML parsing module in Clam AntiVirus (ClamAV) Software version 0.104.1 and LTS version 0.103.4 and prior versions could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to improper checks that may result in an invalid pointer read. An attacker could exploit this vulnerability by sending a crafted OOXML file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to crash, resulting in a denial of service condition.
Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)
EPSS: 0.031 (86.7th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
Affected products
- Cisco Clamav — versions unspecified
- Clamav
- Canonical Ubuntu_linux — versions 14.04, 16.04, 18.04
- Debian Debian_linux — versions 9.0, 10.0, 11.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- psirt@cisco.com (Exploit, vendor-advisory, Vendor Advisory)
- psirt@cisco.com (vendor-advisory)
Frequently asked questions
- What is CVE-2022-20698?
- CVE-2022-20698 is a high-severity vulnerability in Cisco Clamav, classified under Improper Input Validation. CVSS score: 7.5/10. Published 2022-01-14.
- How severe is CVE-2022-20698?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2022-20698 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.