CVE-2020-3327: canonical ubuntu_linux Improper Input Validation
Vulnerability summary
CVE-2020-3327 is a high (CVSS 7.5) Improper Input Validation vulnerability in canonical ubuntu_linux. EPSS estimates a 5.06% chance of exploitation in the next 30 days, higher than 92.2% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 14 · Related 11Timeline
- 13-05-2020PublishedVulnerability first disclosed.
- 15-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the ARJ archive parsing module in Clam AntiVirus (ClamAV) Software versions 0.102.2 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a heap buffer overflow read. An attacker could exploit this vulnerability by sending a crafted ARJ 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
5.06%
Chance of exploitation in the next 30 days
Percentile
92%
Versus all other CVEs
30-day change
0.00 pp
From 5.06% 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
Cisco2 products
- clam_antivirus≤ 0.102.2
- clamav≥ unspecified, < 0.102.3
Debian2 products
- clamav< 0.102.4+dfsg-1
- debian_linuxEOL8.0 | 9.0
Alpine1 product
- clamav< 0.102.3-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 19.10 | 20.04
Fedoraproject1 product
- fedoraEOL30 | 31 | 32
Ubuntu1 product
- clamav< 0.102.4+dfsg-0ubuntu0.14.04.1+esm1 | < 0.102.4+dfsg-0ubuntu0.16.04.1 | < 0.102.4+dfsg-0ubuntu0.18.04.1 | < 0.102.4+dfsg-0ubuntu0.20.04.1
6 vendors · 8 products
References
22 links- blog.clamav.net/2020/05/clamav-01023-security-patch-released.htmlVendor AdvisoryX Refsource CISCOREPORT
lists.debian.org/debian-lts-announce/2020/05/msg00018.htmlMailing ListX Refsource MLISTThird Party Advisory
Show all 22 references
- lists.debian.org/debian-lts-announce/2020/08/msg00010.htmlMailing ListX Refsource MLISTThird Party Advisory