CVE-2021-20266

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Source
https://cve.org/CVERecord?id=CVE-2021-20266
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20266.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2021-20266
Downstream
BELL (1)
CLSA (1)
DEBIAN (1)
MGASA (1)
OESA (1)
openSUSE (2)
RHSA (1)
RLSA (1)
SUSE (3)
UBUNTU (1)
Related
ALSA (1)
openSUSE (2)
SUSE (3)
Published
2021-04-30T12:15:07Z
Modified
2026-07-08T05:59:31Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

A flaw was found in RPM's hdrblobInit() in lib/header.c. This flaw allows an attacker who can modify the rpmdb to cause an out-of-bounds read. The highest threat from this vulnerability is to system availability.

Database specific 
{
    "unresolved_ranges":  [
        {
            "cpes":  [
                "cpe:2.3:o:fedoraproject:fedora:33:*:*:*:*:*:*:*",
                "cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*"
            ],
            "extracted_events":  [
                {
                    "introduced":  "33"
                },
                {
                    "last_affected":  "33"
                },
                {
                    "introduced":  "34"
                },
                {
                    "last_affected":  "34"
                }
            ],
            "source":  "CPE_STRING",
            "vendor_product":  "fedoraproject:fedora"
        }
    ]
}
References

Affected packages

Git / github.com/rpm-software-management/rpm

Affected ranges

Type
GIT
Repo
https://github.com/rpm-software-management/rpm
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
3659b8a04f5b8bacf6535e0124e7fe23f15286bd
Database specific
Show details 
{
    "cpe":  "cpe:2.3:a:rpm:rpm:*:*:*:*:*:*:*:*",
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "4.16.1.3"
        }
    ],
    "source":  "CPE_RANGE"
}

Affected versions

rpm-4.*
rpm-4.11.0-alpha
rpm-4.12.0-alpha
rpm-4.13.0-alpha
rpm-4.15.0-alpha
rpm-4.16.0-alpha
rpm-4.16.0-beta2
rpm-4.16.0-beta3
rpm-4.16.0-release
rpm-4.16.1-release
rpm-4.16.1.1-release
rpm-4.16.1.2-release
rpm-4.4-release
rpm-4.4.1-release
rpm-4.4.2-release
rpm-4.4.2.1-rc1
rpm-4.4.2.1-rc2
rpm-4.8.0-beta1

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-20266.json"