CVE-2019-15961: canonical ubuntu_linux Improper Input Validation
Vulnerability summary
CVE-2019-15961 is a high (CVSS 7.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 3.14% chance of exploitation in the next 30 days, higher than 87.6% of scored vulnerabilities. 1 public exploit is recorded.
Advisory lineage
Upstream 0 · Downstream 6 · Related 6Timeline
- 15-01-2020PublishedVulnerability first disclosed.
- 15-11-2024Last modifiedVulnerability information updated.
Description
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.
CVSS metrics
6 scores · 5 sources · 2 versions- NVDNIST6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HDiffers
- OSV · AlpineEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HDiffers
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated6.5MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HDiffers
EPSS trend
Probability
3.14%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.14% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundExploit Reference (bugzilla.clamav.net)
Maturity: unknown
Weaknesses
CWE · root cause- CWE-20Improper Input ValidationThe 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.
- CWE-400Uncontrolled Resource ConsumptionThe product does not properly control the allocation and maintenance of a limited resource.
Affected systems
Suse20 products
- clamav&distro=HPE Helion OpenStack 8< 0.100.3-33.29.1
- clamav&distro=SUSE Enterprise Storage 5< 0.100.3-33.29.1
- clamav&distro=SUSE Linux Enterprise Desktop 12 SP4< 0.100.3-33.29.1
- clamav&distro=SUSE Linux Enterprise Module for Basesystem 15< 0.100.3-3.17.2
- clamav&distro=SUSE Linux Enterprise Module for Basesystem 15 SP1< 0.100.3-3.17.2
Debian2 products
- clamav< 0.102.1+dfsg-1 | < 0.101.5+dfsg-0+deb8u1
- debian_linuxEOL8.0
Alpine1 product
- clamav< 0.100.5-r0 | < 0.102.0-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04
Cisco1 product
- email_security_appliance_firmware11.1.1-042 | 11.1.2-023
Clamav1 product
- clamavEOL≥ unspecified, ≤ 0.102.0 | ≥ unspecified, < 0.101.4 | ≤ 0.101.4 | 0.102.0
Mageia1 product
- clamav< 0.101.5-1.1.mga7
Opensuse1 product
- clamav&distro=openSUSE Leap 15.1< 0.100.3-lp151.2.6.1
Ubuntu1 product
- clamav< 0.102.1+dfsg-0ubuntu0.16.04.2 | < 0.102.1+dfsg-0ubuntu0.18.04.2 | < 0.102.1+dfsg-0ubuntu0.14.04.1+esm1
9 vendors · 29 products
References
22 links- quickview.cloudapps.cisco.com/quickview/bug/CSCvr56010Vendor AdvisoryX Refsource CISCOThird Party Advisory
- lists.debian.org/debian-lts-announce/2020/02/msg00016.htmlMailing ListX Refsource MLISTThird Party Advisory
Show all 22 references
- lists.opensuse.org/archives/…Advisory