CVE-2021-45450 Security feature bypass in n/a

What is CVE-2021-45450?

CVE-2021-45450 is a high-severity vulnerability in Fedoraproject Fedora, published on 21 Dec 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psa_cipher_generate_iv and psa_cipher_encrypt allow policy bypass or oracle-based decryption when the output buffer is at memory locations accessible to an untrusted application.

Weakness: CWE-327

Which versions are affected by CVE-2021-45450?

It affects 2 products.

Products include Fedoraproject Fedora, Trustedfirmware Mbed Tls.

How do I fix CVE-2021-45450?

Upgrade to a fixed version.

Is CVE-2021-45450 being exploited?

There is no known exploitation of CVE-2021-45450 in the wild and no public exploit code.

Other vulnerabilities in Fedoraproject Fedora

• CVE-2024-4577 PHP-CGI OS Command Injection Exploited Critical 9.8
• CVE-2021-39226 Grafana Authentication Bypass Exploited Critical 9.8
• CVE-2019-5544 VMware ESXi and Horizon DaaS OpenSLP Heap-Based Buffer Overflow Exploited Critical 9.8
• CVE-2024-4947 Google Chromium V8 Type Confusion Exploited Critical 9.6
• CVE-2024-4671 Google Chromium Visuals Use-After-Free Exploited Critical 9.6

All Fedoraproject Fedora vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-97vf-2gx4-2rfm, JLSEC-2025-215, UBUNTU-CVE-2021-45450, openSUSE-SU-2024:11752-1.