Vulnerability · Published May 19, 2021 · Assigned by redhat
CVE-2021-3445
High 7.5
In plain English
A high-severity security flaw in libdnf. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 1.1% (higher than 66% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Severity (CVSS NVD)7.5High
Exploit odds (30 days)1.1%top 33.8% of all CVEs
Exploited in the wildNo reportsnot in CISA KEV
Attack toolingNoneno public tooling known
Official 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 packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux:8 | libdnf-devel | 0.63.0-3.el8 | ALSA-2021:4464 |
| Debian:12 | libdnf | 0.55.2-6 | DEBIAN-CVE-2021-3445 |
| Debian:13 | libdnf | 0.55.2-6 | DEBIAN-CVE-2021-3445 |
| Debian:14 | libdnf | 0.55.2-6 | DEBIAN-CVE-2021-3445 |
| Rocky Linux:8 | dnf | 0:4.7.0-4.el8 | RLSA-2021:4464 |
| Rocky Linux:8 | dnf-plugins-core | 0:4.0.21-3.el8 | RLSA-2021:4464 |
| Rocky Linux:8 | libdnf | 0:0.63.0-3.el8 | RLSA-2021:4464 |
| Ubuntu:22.04:LTS | libdnf | 0.55.2-6 | UBUNTU-CVE-2021-3445 |
Affected products (as reported)
Weakness: CWE-347
References
- FEDORA-2021-eadfc56b95 vendor-advisory, x_refsource_FEDORA
- FEDORA-2021-c6802f0b69 vendor-advisory, x_refsource_FEDORA
- https://bugzilla.redhat.com/show_bug.cgi?id=1932079 x_refsource_MISC