Vulnerability Details CVE-2021-20271
A flaw was found in RPM's signature check functionality when reading a package file. This flaw allows an attacker who can convince a victim to install a seemingly verifiable package, whose signature header was modified, to cause RPM database corruption and execute code. The highest threat from this vulnerability is to data integrity, confidentiality, and system availability.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.002
EPSS Ranking 42.3%
CVSS Severity
CVSS v3 Score 7.0
CVSS v2 Score 5.1
References
- https://bugzilla.redhat.com/show_bug.cgi?id=1934125
- https://github.com/rpm-software-management/rpm/commit/d6a86b5e69e46cc283b1e06c92343319beb42e21
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGXO3W6DHPO62GJ4VVF5DEUX5DRUR5K/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHRPNBCRPDJHHQE3MBPSZK4H7X2IM7AC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YILPBTPSBRYL4POBI3F4YUSVPSOQNJBY/
- https://security.gentoo.org/glsa/202107-43
- https://www.starwindsoftware.com/security/sw-20220805-0002/
- https://bugzilla.redhat.com/show_bug.cgi?id=1934125
- https://github.com/rpm-software-management/rpm/commit/d6a86b5e69e46cc283b1e06c92343319beb42e21
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TMGXO3W6DHPO62GJ4VVF5DEUX5DRUR5K/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VHRPNBCRPDJHHQE3MBPSZK4H7X2IM7AC/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/YILPBTPSBRYL4POBI3F4YUSVPSOQNJBY/
- https://security.gentoo.org/glsa/202107-43
- https://www.starwindsoftware.com/security/sw-20220805-0002/
Products affected by CVE-2021-20271
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cpe:2.3:a:rpm:rpm:4.15.0
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cpe:2.3:a:rpm:rpm:4.15.1
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cpe:2.3:a:rpm:rpm:4.16.0
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cpe:2.3:a:rpm:rpm:4.16.1
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cpe:2.3:a:rpm:rpm:4.16.1.1
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cpe:2.3:a:rpm:rpm:4.16.1.2
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cpe:2.3:a:starwindsoftware:starwind_virtual_san:v8
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cpe:2.3:o:fedoraproject:fedora:32
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cpe:2.3:o:fedoraproject:fedora:33
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cpe:2.3:o:fedoraproject:fedora:34
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cpe:2.3:o:redhat:enterprise_linux:8.0