CVE-2021-45450
published 2021-12-21CVE-2021-45450: 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…
PriorityP337high7.5CVSS 3.1
AVNACLPRNUINSUCHINAN
EPSS
1.13%
63.2th percentile
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.
Affected
5 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | mbedtls | — | — |
| fedoraproject | fedora | — | — |
| fedoraproject | fedora | — | — |
| trustedfirmware | mbed_tls | — | — |
| trustedfirmware | mbed_tls | >= 2.22.0 < 2.28.0 | 2.28.0 |
CVSS provenance
nvdv3.17.5HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
nvdv2.05.0MEDIUMAV:N/AC:L/Au:N/C:P/I:N/A:N
osv7.5HIGH
vendor_debian7.5LOW
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Debian
CVE-2021-45450: mbedtls - In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psa_cipher_generate_iv and psa_c...
vendor_debian·2021·CVSS 7.5
CVE-2021-45450 [HIGH] CVE-2021-45450: mbedtls - In Mbed TLS before 2.28.0 and 3.x before 3.1.0, psa_cipher_generate_iv and psa_c...
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.
Scope: local
bookworm: resolved
bullseye: resolved
forky: resolved
sid: resolved
trixie: resolved
VulDB
ARM mbed TLS up to 2.27.x/3.0.x psa_cipher_generate_iv/psa_cipher_encrypt memory corruption
vuldb·2026-06-06·CVSS 7.5
CVE-2021-45450 [HIGH] ARM mbed TLS up to 2.27.x/3.0.x psa_cipher_generate_iv/psa_cipher_encrypt memory corruption
A vulnerability identified as critical has been detected in ARM mbed TLS up to 2.27.x/3.0.x. This impacts the function psa_cipher_generate_iv/psa_cipher_encrypt. The manipulation leads to memory corruption.
This vulnerability is listed as CVE-2021-45450. The attack must be carried out from within the local network. There is no available exploit.
You should upgrade the affected component.
GHSA
GHSA-97vf-2gx4-2rfm: In Mbed TLS before 2
ghsa_unreviewed·2021-12-22
CVE-2021-45450 [HIGH] CWE-327 GHSA-97vf-2gx4-2rfm: In Mbed TLS before 2
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.
OSV
CVE-2021-45450: In Mbed TLS before 2
osv·2021-12-21·CVSS 7.5
CVE-2021-45450 [HIGH] CVE-2021-45450: In Mbed TLS before 2
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.
No detection rules found.
No public exploits indexed.
No writeups or analysis indexed.
https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IL66WKJGXY5AXMTFE7QDMGL3RIBD6PX5/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TALJHOYAYSUJTLN6BYGLO4YJGNZUY74W/https://security.gentoo.org/glsa/202301-08https://github.com/ARMmbed/mbedtls/releases/tag/v2.28.0https://github.com/ARMmbed/mbedtls/releases/tag/v3.1.0https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IL66WKJGXY5AXMTFE7QDMGL3RIBD6PX5/https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TALJHOYAYSUJTLN6BYGLO4YJGNZUY74W/https://security.gentoo.org/glsa/202301-08
2021-12-21
Published