Fedora 21.x — End of Life
EOL Medium riskFedora 21.x — All releases
| Version | Released | Active support | EOL date | Latest patch | Status | Alert me |
|---|---|---|---|---|---|---|
| 21 | Dec 9, 2014 | — | Dec 1, 2015 | 21 | EOL |
CVEs affecting Fedora 21.x (3)
| CVE | Severity | CVSS | EPSS | KEV | Cycle | Description | Published |
|---|---|---|---|---|---|---|---|
| CVE-2015-8036 | MEDIUM | 6.8 | 2.87% | — | 21 | Heap-based buffer overflow in ARM mbed TLS (formerly PolarSSL) 1.3.x before 1.3.14 and 2.x before 2.1.2 allows remote SS… | Nov 2, 2015 |
| CVE-2015-5291 | MEDIUM | 6.8 | 3.63% | — | 21 | Heap-based buffer overflow in PolarSSL 1.x before 1.2.17 and ARM mbed TLS (formerly PolarSSL) 1.3.x before 1.3.14 and 2.… | Nov 2, 2015 |
| CVE-2014-3566 | LOW | 3.4 | 100.00% | — | 21 | The SSL protocol 3.0, as used in OpenSSL through 1.0.1i and other products, uses nondeterministic CBC padding, which mak… | Oct 15, 2014 |
Fedora 21.x is EOL — migrate to Fedora 22.x
Fedora 22.x is the next major release. Plan your upgrade before Fedora 21.x stops receiving security patches.
Frequently asked questions
Is Fedora 21 end of life?
Yes. All Fedora 21.x releases have reached end of life and no longer receive security patches. There are 3 known CVEs affecting Fedora 21.x. Migrate to Fedora 22.x as soon as possible.
What CVEs affect Fedora 21?
There are 3 CVEs tracked for Fedora 21.x. See the full list above with CVSS and EPSS scores.
What is the latest Fedora 21 version?
The latest Fedora 21.x patch release is 21, released on December 9, 2014. Always run the latest patch to benefit from all security fixes.
How to migrate from Fedora 21 to Fedora 22?
To migrate from Fedora 21 to Fedora 22: (1) review the official Fedora 22 migration guide for breaking changes, (2) update dependencies and configuration accordingly, (3) test thoroughly in a staging environment, (4) deploy with a rollback plan. Starting early gives you time to resolve compatibility issues before your current version reaches end of life.
Is it safe to run Fedora 21 in production?
No. Fedora 21 has reached end of life and security vulnerabilities are no longer patched. Upgrade to a supported version immediately.
Data sourced from endoflife.date · CVE data from NVD · EPSS from FIRST.org · KEV from CISA