CVE-2021-3421: fedoraproject fedora
Vulnerability summary
CVE-2021-3421 is a medium (CVSS 5.5) vulnerability in fedoraproject fedora. EPSS estimates a 0.65% chance of exploitation in the next 30 days, higher than 49.9% of scored vulnerabilities.
Advisory lineage
Upstream 0 · Downstream 11 · Related 8Timeline
- 19-05-2021PublishedVulnerability first disclosed.
- 03-08-2024Last modifiedVulnerability information updated.
Description
A flaw was found in the RPM package in the read functionality. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package or compromise an RPM repository, to cause RPM database corruption. The highest threat from this vulnerability is to data integrity. This flaw affects RPM versions before 4.17.0-alpha.
CVSS metrics
4 scores · 3 sources · 2 versions- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
EPSS trend
Probability
0.65%
Chance of exploitation in the next 30 days
Percentile
50%
Versus all other CVEs
30-day change
-0.03 pp
From 0.67% 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
Debian1 product
- rpm< 4.16.1.2+dfsg1-1
Fedoraproject1 product
- fedoraEOL32 | 33 | 34
Redhat1 product
Rpm1 product
- rpm< 4.16.1.3
Ubuntu1 product
- rpmAll versions (No fix recorded) | < 4.12.0.1+dfsg1-3ubuntu0.1~esm1 | < 4.14.1+dfsg1-2ubuntu0.1~esm1 | < 4.14.2.1+dfsg1-1ubuntu0.1~esm1
5 vendors · 5 products
