Vulnerability Details : CVE-2019-15961
Potential exploit
A vulnerability in the email parsing module Clam AntiVirus (ClamAV) Software versions 0.102.0, 0.101.4 and prior could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to inefficient MIME parsing routines that result in extremely long scan times of specially formatted email files. An attacker could exploit this vulnerability by sending a crafted email file to an affected device. An exploit could allow the attacker to cause the ClamAV scanning process to scan the crafted email file indefinitely, resulting in a denial of service condition.
Vulnerability category: Input validationDenial of service
Products affected by CVE-2019-15961
- cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.1-042:*:*:*:*:*:*:*
- cpe:2.3:o:cisco:email_security_appliance_firmware:11.1.2-023:*:*:*:*:*:*:*
- cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*
- cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:esm:*:*:*
- cpe:2.3:a:clamav:clamav:*:*:*:*:*:*:*:*
- cpe:2.3:a:clamav:clamav:0.102.0:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2019-15961
2.22%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 84 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2019-15961
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
7.1
|
HIGH | AV:N/AC:M/Au:N/C:N/I:N/A:C |
8.6
|
6.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H |
2.8
|
3.6
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
3.9
|
3.6
|
Cisco Systems, Inc. |
CWE ids for CVE-2019-15961
-
The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly.Assigned by: ykramarz@cisco.com (Secondary)
-
The product does not properly control the allocation and maintenance of a limited resource.Assigned by: nvd@nist.gov (Primary)
References for CVE-2019-15961
-
https://bugzilla.clamav.net/show_bug.cgi?id=12380
Bug 12380 – MIME Denial of Service VulnerabilityExploit;Issue Tracking;Vendor Advisory
-
https://usn.ubuntu.com/4230-2/
USN-4230-2: ClamAV vulnerability | Ubuntu security noticesThird Party Advisory
-
https://quickview.cloudapps.cisco.com/quickview/bug/CSCvr56010
Cisco Bug: CSCvr56010 - Opened to track: ClamAV for Cisco Email Security Appliance (ESA) Denial of Service VulnerabilityThird Party Advisory
-
https://lists.debian.org/debian-lts-announce/2020/02/msg00016.html
[SECURITY] [DLA 2108-1] clamav security updateMailing List;Third Party Advisory
-
https://security.gentoo.org/glsa/202003-46
ClamAV: Multiple vulnerabilities (GLSA 202003-46) — Gentoo securityThird Party Advisory
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