CVE-2017-12378

Severity: medium (CVSS 5.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2018-01-26 · updated 2026-06-17
Weakness: CWE-125

Description

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 on an affected device. The vulnerability is due to improper input validation checking mechanisms of .tar (Tape Archive) files sent to an affected device. A successful exploit could cause a checksum buffer over-read condition when ClamAV scans the malicious .tar file, potentially allowing the attacker to cause a DoS condition on the affected device.

Affected products

Cisco ClamAV: through 0.99.2
Debian Linux: 7.0

References

http://blog.clamav.net/2018/01/clamav-0993-has-been-released.html
https://bugzilla.clamav.net/show_bug.cgi?id=11946
https://lists.debian.org/debian-lts-announce/2018/01/msg00035.html
https://usn.ubuntu.com/3550-1/
https://usn.ubuntu.com/3550-2/
http://blog.clamav.net/2018/01/clamav-0993-has-been-released.html
https://bugzilla.clamav.net/show_bug.cgi?id=11946
https://lists.debian.org/debian-lts-announce/2018/01/msg00035.html
https://usn.ubuntu.com/3550-1/
https://usn.ubuntu.com/3550-2/

Get alerted when CVE-2017-12378 or the next vulnerability affects your stack