Buffer overflow in Clamav

CVE-2017-12379

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 the message parsing function on an affected system. An unauthenticated, remote attacker could exploit this vulnerability by sending a crafted email to the affected device. This action could cause a messageAddArgument (in message.c) buffer overflow condition when ClamAV scans the malicious email, allowing the attacker to potentially cause a DoS condition or execute arbitrary code on an affected device.

Vulnerability class: Buffer Overflow

EPSS: 0.125 (95.8th 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-2017-12379?
CVE-2017-12379 is a critical-severity vulnerability in Clamav, classified under Improper Restriction of Operations within the Bounds of a Memory Buffer. CVSS score: 9.8/10. Published 2018-01-26.
How severe is CVE-2017-12379?
Critical severity. CVSS v3 base score is 9.8 out of 10.