Out-of-bounds Read in Cisco Clamav

CVE-2019-1787

A vulnerability in the Portable Document Format (PDF) scanning functionality of Clam AntiVirus (ClamAV) Software versions 0.101.1 and prior 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 a heap buffer out-of-bounds read condition, resulting in a crash that could result in a denial of service condition on an affected device.

Vulnerability class: Drupalgeddon 2 (CVE-2018-7600)

EPSS: 0.017 (75.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

  • psirt@cisco.com (Exploit, Mailing List, Third Party Advisory, x_refsource_MISC, Issue Tracking)
  • psirt@cisco.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
  • psirt@cisco.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
  • psirt@cisco.com (vendor-advisory, Mailing List, Third Party Advisory, x_refsource_SUSE)
  • psirt@cisco.com (mailing-list, x_refsource_MLIST, Mailing List, Third Party Advisory)

Frequently asked questions

What is CVE-2019-1787?
CVE-2019-1787 is a medium-severity vulnerability in Cisco Clamav, classified under Improper Input Validation. CVSS score: 5.5/10. Published 2019-04-08.
How severe is CVE-2019-1787?
Medium severity. CVSS v3 base score is 5.5 out of 10.
Is CVE-2019-1787 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.