Out-of-bounds Read in Clamav

CVE-2017-12377

ClamAV AntiVirus software versions 0.99.2 and prior contain a vulnerability that could allow an unauthenticated, remote attacker to cause a denial of service (DoS) condition or potentially execute arbitrary code on an affected device. The vulnerability is due to improper input validation checking mechanisms in mew packet files sent to an affected device. A successful exploit could cause a heap-based buffer over-read condition in mew.c when ClamAV scans the malicious file, allowing the attacker to cause a DoS condition or potentially execute arbitrary code on the affected device.

Vulnerability class: Buffer Overflow

EPSS: 0.116 (95.6th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Clamav
  • Debian Debian_linux — versions 7.0
  • N/a Clamav Antivirus Software Versions 0.99.2 And Prior — versions ClamAV AntiVirus software versions 0.99.2 and prior

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2017-12377?
CVE-2017-12377 is a critical-severity vulnerability in Clamav, classified under Out-of-bounds Read. CVSS score: 9.8/10. Published 2018-01-26.
How severe is CVE-2017-12377?
Critical severity. CVSS v3 base score is 9.8 out of 10.