VulnerabilityModified

CVE-2017-12374

HIGH 7.5EPSS 4.98%

Does this matter?

High impact if exploited, but EPSS currently rates exploitation as unlikely (4.98%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.

Description

The 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 a lack of input validation checking mechanisms during certain mail parsing operations (mbox.c operations on bounce messages). If successfully exploited, the ClamAV software could allow a variable pointing to the mail body which could cause a used after being free (use-after-free) instance which may lead to a disruption of services on an affected device to include a denial of service condition.

CVSS 3.0: 7.5 HIGHCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 4.98% probability · 92th percentile
CISA KEV: Not listed
Weakness: CWE-416
Affected: debian/debian linux · clamav/clamav
Source: psirt@cisco.com

References

http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes, Vendor Advisory
https://bugzilla.clamav.net/show_bug.cgi?id=11939Exploit, Issue Tracking, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3550-1/
https://usn.ubuntu.com/3550-2/
http://blog.clamav.net/2018/01/clamav-0993-has-been-released.htmlRelease Notes, Vendor Advisory
https://bugzilla.clamav.net/show_bug.cgi?id=11939Exploit, Issue Tracking, Patch, Vendor Advisory
https://lists.debian.org/debian-lts-announce/2018/01/msg00035.htmlMailing List, Third Party Advisory
https://usn.ubuntu.com/3550-1/
https://usn.ubuntu.com/3550-2/

Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.