Improper signature verification in libdnf
Priority LOW 35CWE-347Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- High
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-347.
Summary
A flaw was found in libdnf's signature verification functionality in versions before 0.60.1. This flaw allows an attacker to achieve code execution if they can alter the header information of an RPM package and then trick a user or system into installing it. The highest risk of this vulnerability is to confidentiality, integrity, as well as system availability.
Why it matters now
EPSS 0.01117 66th percentileScored 2026-11-07
Fix Fixed Red Hat: 1 advisory
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | libdnf | libdnf 0.60.1 | — | No fix listed | CNA |
- libdnf Vendor— Affected libdnf 0.60.1 Fixed in — No fix listed CNA
CPE configurations NVD · 4
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:rpm:libdnf:*:*:*:*:*:*:*:* | before 0.60.1 | Vulnerable | Rpm |
| cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* | 33 | Vulnerable | Fedoraproject |
| cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* | 34 | Vulnerable | Fedoraproject |
| cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* | 8.0 | Vulnerable | Red Hat |
- cpe:2.3:a:rpm:libdnf:*:*:*:*:*:*:*:* Versions before 0.60.1 Vulnerable ·Rpm
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:* Versions 33 Vulnerable ·Fedoraproject
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
Remediation
Red Hat 1 advisory
- RHSA-2021:4464 Released 2021-11-09 · Red Hat rating Moderatednf security and bug fix update
- Red Hat CodeReady Linux Builder (v. 8) libdnf-devel-0.63.0-3.el8
- Red Hat Enterprise Linux BaseOS (v. 8) dnf-4.7.0-4.el8, dnf-automatic-4.7.0-4.el8, dnf-data-4.7.0-4.el8 +10
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat CodeReady Linux Builder (v. 8) | Fixed | RHSA-2021:4464 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2021:4464 |
Not affected: 1 product
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2021-3445
- 2026-10-03 Alias added: GHSA-jrcf-96j2-jpvh
References
Sources
- CVE-2021-3445 · CVE Program
- CVE-2021-3445 · NVD
- FIRST EPSS
- GHSA-jrcf-96j2-jpvh · GitHub Advisory Database · CC BY 4.0
- CVE-2021-3445 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences