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High severity · published May 19, 2021
CVE-2021-3445
A flaw was found in libdnf's signature verification functionality in versions before 0.60.1
7.5
CVSS
1.1%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
High
Privileges
None
User interaction
Required
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.1% · higher than 66% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
EL
Enterprise Linux · Redhat
8.0 · source: NVD
FE
Fedora · Fedoraproject
33; 34 · source: NVD
LI
Libdnf · Rpm
before 0.60.1 · source: NVD
Affected product
FE
Fedora
Fedoraproject
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3445
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3445
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1932079
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPMFGGQ5T6WVFTFX3OKMVTTM5O4EXWZR/
lists.fedoraproject.org
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G4NL7TNWAHJ6JVRABQUPWHKKCTHUZMNF/
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