CVE catalog

CVE-2021-45450

mbedtls: CVE-2021-45450

Severity: High · CVSS 7.5CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Published: Dec 21, 2021, 7:15:00 AM UTC
Source: [NVD] · [CVE record]
EPSS: 1.23% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	mbedtls	sid	`3.6.7-3`	not affected
Debian	mbedtls	forky	`3.6.7-3`	not affected
Debian	mbedtls	trixie	`3.6.6-0.1~deb13u1`	not affected
Debian	mbedtls	bookworm	`2.28.3-1`	not affected
Ubuntu	mbedtls	16.04	`2.1.2-1`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.0-1`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-1`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-2`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-2ubuntu0.1`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-2ubuntu0.2`	vulnerable
Ubuntu	mbedtls	16.04	`2.2.1-2ubuntu0.3`	vulnerable
Ubuntu	mbedtls	pro	`2.16.2-1`	vulnerable
Ubuntu	mbedtls	pro	`2.16.3-1`	vulnerable
Ubuntu	mbedtls	pro	`2.16.4-1ubuntu2`	vulnerable
Ubuntu	mbedtls	pro	`2.16.4-1ubuntu2+esm1`	vulnerable
Opensuse	mbedtls-2	tumbleweed	`2.28.0-1.1`	fixed

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	mbedtls	source	sid	`Not affected`	unimportant	Not reported	Not reported
Debian	mbedtls	source	forky	`Not affected`	unimportant	Not reported	Not reported
Debian	mbedtls	source	trixie	`Not affected`	unimportant	Not reported	Not reported
Debian	mbedtls	source	bookworm	`Not affected`	unimportant	Not reported	Not reported
Opensuse	mbedtls-2	rpm	tumbleweed	`2.28.0-1.1`	Not reported	OPENSUSE-SU-2024:11752-1	Not reported

OpenFactory catalog packages

[openSUSE Tumbleweed]

[libmbedcrypto7]Unknown
Source package: [mbedtls-2]
Details (1)
- 2.28.10-4.3 · x86_64 · tumbleweed
  Unknown · Fixed: 2.28.0-1.1
  Version impact unknown
  dsa · mbedtls-2 · opensuse · tumbleweed
[libmbedcrypto7-x86-64-v3]Unknown
Source package: [mbedtls-2]
Details (1)
- 2.28.10-4.3 · x86_64 · tumbleweed
  Unknown · Fixed: 2.28.0-1.1
  Version impact unknown
  dsa · mbedtls-2 · opensuse · tumbleweed
[libmbedtls14]Unknown
Source package: [mbedtls-2]
Details (1)
- 2.28.10-4.3 · x86_64 · tumbleweed
  Unknown · Fixed: 2.28.0-1.1
  Version impact unknown
  dsa · mbedtls-2 · opensuse · tumbleweed
[libmbedtls14-x86-64-v3]Unknown
Source package: [mbedtls-2]
Details (1)
- 2.28.10-4.3 · x86_64 · tumbleweed
  Unknown · Fixed: 2.28.0-1.1
  Version impact unknown
  dsa · mbedtls-2 · opensuse · tumbleweed
[libmbedx509-1]Unknown
Source package: [mbedtls-2]
Details (1)
- 2.28.10-4.3 · x86_64 · tumbleweed
  Unknown · Fixed: 2.28.0-1.1
  Version impact unknown
  dsa · mbedtls-2 · opensuse · tumbleweed
[libmbedx509-1-x86-64-v3]Unknown
Source package: [mbedtls-2]
Details (1)
- 2.28.10-4.3 · x86_64 · tumbleweed
  Unknown · Fixed: 2.28.0-1.1
  Version impact unknown
  dsa · mbedtls-2 · opensuse · tumbleweed
[mbedtls-2-devel]Unknown
Source package: [mbedtls-2]
Details (1)
- 2.28.10-4.3 · x86_64 · tumbleweed
  Unknown · Fixed: 2.28.0-1.1
  Version impact unknown
  dsa · mbedtls-2 · opensuse · tumbleweed

[Debian 12 (Bookworm)]

[libmbedcrypto7]Not affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · amd64 · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · arm64 · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm
[libmbedtls14]Not affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · amd64 · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · arm64 · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm
[libmbedtls-dev]Not affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · amd64 · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · arm64 · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm
[libmbedtls-doc]Not affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · all · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · all · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm
[libmbedx509-1]Not affected
Source package: [mbedtls]
Details (2)
- 2.28.3-1 · amd64 · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm
- 2.28.3-1 · arm64 · bookworm
  Not affected
  dsa · mbedtls · debian · bookworm

Observed: Oct 23, 2026, 6:03:54 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX]