Improper Verification of Cryptographic Signature in libdnf - CVE-2021-3445
Published: June 30, 2021
Vulnerability identifier: #VU54480
CSH Severity: Medium
CVSS v4.0: CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Green
CVE-ID: CVE-2021-3445
CWE-ID: CWE-347
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vendor: rpm-software-management
Affected software:
libdnf
libdnf
Detailed vulnerability description
The vulnerability allows a remote attacker to compromise the affected system.
The vulnerability exists due to insufficient verification of cryptographic signature in libdnf. A remote attacker can create a specially crafted RPM package with altered header information, trick the victim into installing it and compromise the affected system.
How to mitigate CVE-2021-3445
Install updates from vendor's website.
Sources
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G4NL7TNWAHJ6JVRABQUPWHKKCTHUZMNF/
- https://bugzilla.redhat.com/show_bug.cgi?id=1932079
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DPMFGGQ5T6WVFTFX3OKMVTTM5O4EXWZR/