Vulnerability in Rpm Libdnf
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.011 (64.8th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 65th percentile — 64.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.011 · newest: 0.011 · change: 0.000
Affected products
- Rpm Libdnf
- Fedoraproject Fedora — versions 33, 34
- Red Hat Enterprise Linux — versions 8.0
- Libdnf — versions libdnf 0.60.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/… (vendor-advisory)
- bugzilla.redhat.com/show_bug.cgi (Third Party Advisory, Mitigation, Issue Tracking)
Frequently asked questions
- What is CVE-2021-3445?
- CVE-2021-3445 is a high-severity vulnerability in Rpm Libdnf, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.5/10. Published 2021-05-19.
- How severe is CVE-2021-3445?
- High severity. CVSS v3 base score is 7.5 out of 10.
- Is CVE-2021-3445 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.