CVE-2020-3481: canonical ubuntu_linux NULL Pointer Dereference
Vulnerability summary
CVE-2020-3481 is a high (CVSS 7.5) NULL Pointer Dereference vulnerability in canonical ubuntu_linux. EPSS estimates a 3.20% chance of exploitation in the next 30 days, higher than 87.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 11 · Related 9Timeline
- 20-07-2020PublishedVulnerability first disclosed.
- 13-11-2024Last modifiedVulnerability information updated.
Description
A vulnerability in the EGG archive parsing module in Clam AntiVirus (ClamAV) Software versions 0.102.0 - 0.102.3 could allow an unauthenticated, remote attacker to cause a denial of service condition on an affected device. The vulnerability is due to a null pointer dereference. An attacker could exploit this vulnerability by sending a crafted EGG 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
3.20%
Chance of exploitation in the next 30 days
Percentile
88%
Versus all other CVEs
30-day change
0.00 pp
From 3.20% 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
Debian2 products
- clamav< 0.102.4+dfsg-1
- debian_linuxEOL9.0
Alpine1 product
- clamav≥ 0.102.0, < 0.102.4-r0
Canonical1 product
- ubuntu_linuxEOL12.04 | 14.04 | 16.04 | 18.04 | 20.04
Cisco1 product
- clamav≥ unspecified, < 0.102.4
Clamav1 product
- clamav≥ 0.102.0, ≤ 0.102.3
Fedoraproject1 product
- fedoraEOL31 | 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
7 vendors · 8 products
References
13 links- blog.clamav.net/2020/07/clamav-01024-security-patch-released.htmlVendor AdvisoryX Refsource CISCOREPORT
lists.debian.org/debian-lts-announce/2020/08/msg00010.htmlMailing ListX Refsource MLISTThird Party Advisory