CVE-2019-1786: cisco clamav Improper Input Validation

Vulnerability summary

CVE-2019-1786 is a high (CVSS 7.5) Improper Input Validation vulnerability in cisco clamav. EPSS estimates a 1.49% chance of exploitation in the next 30 days, higher than 73.6% of scored vulnerabilities.

Timeline

1. 08-04-2019
   PublishedVulnerability first disclosed.
2. 19-11-2024
   Last modifiedVulnerability information updated.

Description

A vulnerability in the Portable Document Format (PDF) scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and 0.101.0 could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition on an affected device. The vulnerability is due to a lack of proper data handling mechanisms within the device buffer while indexing remaining file data on an affected device. An attacker could exploit this vulnerability by sending crafted PDF files to an affected device. A successful exploit could allow the attacker to cause an out-of-bounds read condition, resulting in a crash that could result in a denial of service condition on an affected device.

• CWE-20Improper Input ValidationThe product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.
• CWE-125Out-of-bounds ReadThe product reads data past the end, or before the beginning, of the intended buffer.