Vulnerability Details : CVE-2021-3445
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.
Products affected by CVE-2021-3445
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:rpm:libdnf:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Exploit prediction scoring system (EPSS) score for CVE-2021-3445
0.05%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 12 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3445
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
5.1
|
MEDIUM | AV:N/AC:H/Au:N/C:P/I:P/A:P |
4.9
|
6.4
|
NIST | |
|
7.5
|
HIGH | CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H |
1.6
|
5.9
|
NIST |
CWE ids for CVE-2021-3445
-
The product does not verify, or incorrectly verifies, the cryptographic signature for data.Assigned by: secalert@redhat.com (Primary)
References for CVE-2021-3445
-
https://bugzilla.redhat.com/show_bug.cgi?id=1932079
1932079 – (CVE-2021-3445) CVE-2021-3445 libdnf: libdnf does its own signature verification, but this can be tricked by placing a signature in the main headerIssue Tracking;Mitigation;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/G4NL7TNWAHJ6JVRABQUPWHKKCTHUZMNF/
[SECURITY] Fedora 33 Update: rpm-ostree-2021.4-1.fc33 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
-
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DPMFGGQ5T6WVFTFX3OKMVTTM5O4EXWZR/
[SECURITY] Fedora 34 Update: rpm-ostree-2021.4-1.fc34 - package-announce - Fedora Mailing-ListsMailing List;Third Party Advisory
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