CVE-2020-3123: canonical ubuntu_linux Out-of-bounds Read
Vulnerability summary
CVE-2020-3123 is a high (CVSS 7.5) Out-of-bounds Read vulnerability in canonical ubuntu_linux. EPSS estimates a 2.60% chance of exploitation in the next 30 days, higher than 85.1% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 7 · Related 7Timeline
- 05-02-2020PublishedVulnerability first disclosed.
- 15-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the Data-Loss-Prevention (DLP) module in Clam AntiVirus (ClamAV) Software versions 0.102.1 and 0.102.0 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to an out-of-bounds read affecting users that have enabled the optional DLP feature. 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 crash, resulting in a denial of service condition.
CVSS metrics
6 scores · 5 sources · 2 versions- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- 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 · calculated7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVDNIST7.5HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
2.60%
Chance of exploitation in the next 30 days
Percentile
85%
Versus all other CVEs
30-day change
0.00 pp
From 2.60% on 18-09-2026
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Alpine1 product
- clamav< 0.102.1-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 19.10
Cisco1 product
- clamavEOL0.102.1
Clamav1 product
- clamavEOL0.102.0 | 0.102.1
Debian1 product
- clamav< 0.102.2+dfsg-1
Mageia1 product
- clamav< 0.102.2-1.mga7
Ubuntu1 product
- clamav< 0.102.2+dfsg-0ubuntu0.16.04.1 | < 0.102.2+dfsg-0ubuntu0.18.04.1 | < 0.102.2+dfsg-0ubuntu0.14.04.1+esm1
7 vendors · 7 products
References
13 links- quickview.cloudapps.cisco.com/quickview/bug/CSCvs59062Vendor AdvisoryX Refsource CISCOREPORTThird Party Advisory
- blog.clamav.net/2020/02/clamav-01022-security-patch-released.htmlX Refsource CONFIRMWEBRelease NotesVendor Advisory