Description
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.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | libdnf | libdnf 0.60.1 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | libdnf | 0.55.2-6 | — |
| Debian 13 | libdnf | 0.55.2-6 | — |
| Debian 12 | libdnf | 0.55.2-6 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | libdnf | 0.55.2-6 | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 8 | dnf +4 | 4.7.0-4.el8 | RHSA-2021:4464 |
| RHEL 8 | libdnf +3 | 0.63.0-3.el8 | RHSA-2021:4464 |
| RHEL 8 | yum-utils +4 | 4.0.21-3.el8 | RHSA-2021:4464 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 8 | libdnf-devel | 0.63.0-3.el8 | ALSA-2021:4464 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 8 | dnf | 4.7.0-4.el8 | RLSA-2021:4464 |
| Rocky Linux 8 | dnf-plugins-core | 4.0.21-3.el8 | RLSA-2021:4464 |
| Rocky Linux 8 | libdnf | 0.63.0-3.el8 | RLSA-2021:4464 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Leap 15.3 | libdnf | 0.62.0-5.3.1 | openSUSE-SU-2021:2685-1 |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 8 | dnf +4 | 4.7.0-4.0.1.el8 | ELSA-2021-4464 |
| Oracle Linux 8 | libdnf +3 | 0.63.0-3.0.1.el8 | ELSA-2021-4464 |
| Oracle Linux 8 | yum-utils +4 | 4.0.21-3.0.1.el8 | ELSA-2021-4464 |
Advisories 8
- ALSA-2021:4464 Moderate: dnf security and bug fix update AlmaLinux Security Advisories · Oct 29, 2026
- WID-SEC-2022-0571 Red Hat Enterprise Linux: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 28, 2026
- RHSA-2021:4464 Red Hat Security Advisory: dnf security and bug fix update Red Hat Security Advisories (RHSA) · Jun 27, 2026
- RLSA-2021:4464 Moderate: dnf security and bug fix update Rocky Linux Security Advisories · Feb 4, 2026
- openSUSE-SU-2021:2685-1 Security update for libdnf SUSE / openSUSE Security Updates · Feb 4, 2026
- ICSA-24-046-11 Siemens SCALANCE XCM-/XRM-300 CISA ICS & IT advisories · Feb 13, 2024
- SSA-806742 SSA-806742: Multiple Vulnerabilities in SCALANCE XCM-/XRM-300 before V2.4 Siemens ProductCERT · Feb 13, 2024
- ELSA-2021-4464 Moderate: dnf security and bug fix update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Nov 16, 2021
References
- FEDORA-2021-eadfc56b95 vendor-advisory
- FEDORA-2021-c6802f0b69 vendor-advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1932079