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CVE-2020-3810

21
FAUCET Score

CVE-2020-3810 describes a denial-of-service vulnerability in APT versions prior to 2.1.2, affecting Debian, Ubuntu, and Fedora systems. This flaw stems from missing input validation in the ar/tar implementations, allowing specially crafted .deb files to trigger the denial of service. With a CVSS score of 5.5 (Medium), it requires user interaction and local access, but can lead to high availability impact. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
< 2.1.2CPE matchmatch criteria
cpe:2.3:a:debian:apt:*:*:*:*:*:*:*:*
9.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
10.0CPE matchmatch criteria
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
32CPE matchmatch criteria
cpe:2.3:o:fedoraproject:fedora:32:*:*:*:*:*:*:*
12.04CPE matchmatch criteria
cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:-:*:*:*

CVSS Data

CVSS version used by this source: 3.1

5.5MEDIUM

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Attack Vector
LOCAL
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
Exploitability Score
1.8
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
1.31%
Probability of exploitation in next 30 days
EPSS Percentile
67.6%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0131 is in the 78th percentile among its peer group of 5,758 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.0 Bluesky, 0.0 Mastodon, and 0.1 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Vendor Patches (1)

debianvendor investigatingvia nvd_reference
View patch

References

bugs.launchpad.net / bugs/1878177
Issue TrackingThird Party Advisory
github.com / Debian/apt/issues/111
ExploitThird Party Advisory
lists.debian.org / debian-security-announce/2020/msg00089.html
Mailing ListVendor Advisory
lists.fedoraproject.org / archives/list/package-announce%40lists.fedoraproject.org/message/U4PEH357MZM2SUGKETMEHMSGQS652QHH
salsa.debian.org / apt-team/apt/-/commit/dceb1e49e4b8e4dadaf056be34088b415939cda6
PatchVendor Advisory
tracker.debian.org / news/1144109/accepted-apt-212-source-into-unstable
Release NotesVendor Advisory
usn.ubuntu.com / 4359-1
Third Party Advisory
usn.ubuntu.com / 4359-2
Third Party Advisory