ARM mbed TLS up to 2.27.x/3.0.x psa_cipher_generate_iv/psa_cipher_encrypt memory corruption

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in ARM mbed TLS up to 2.27.x/3.0.x. Affected is the function psa_cipher_generate_iv/psa_cipher_encrypt. The manipulation results in memory corruption. This vulnerability is cataloged as CVE-2021-45450. There is no exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability, which was classified as critical, was found in ARM mbed TLS up to 2.27.x/3.0.x. Affected is the function psa_cipher_generate_iv/psa_cipher_encrypt. The manipulation with an unknown input leads to a memory corruption vulnerability. CWE is classifying the issue as CWE-119. The product performs operations on a memory buffer, but it can read from or write to a memory location that is outside of the intended boundary of the buffer. This is going to have an impact on confidentiality, integrity, and availability.

The weakness was shared 12/21/2021. The advisory is available at github.com. This vulnerability is traded as CVE-2021-45450 since 12/21/2021. Technical details are known, but there is no available exploit.

Upgrading to version 2.28.0 or 3.1.0 eliminates this vulnerability. The upgrade is hosted for download at github.com.

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Productinfo

Vendor

Name

Version

License

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 6.5
VulDB Meta Temp Score: 6.4

VulDB Base Score: 5.5
VulDB Temp Score: 5.3
VulDB Vector: 🔍
VulDB Reliability: 🔍

NVD Base Score: 7.5
NVD Vector: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔍
VulDB Temp Score: 🔍
VulDB Reliability: 🔍

NVD Base Score: 🔍

Exploitinginfo

Class: Memory corruption
CWE: CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: mbed TLS 2.28.0/3.1.0

Timelineinfo

12/21/2021 🔍
12/21/2021 +0 days 🔍
12/21/2021 +0 days 🔍
06/06/2026 +1627 days 🔍

Sourcesinfo

Advisory: github.com
Status: Confirmed

CVE: CVE-2021-45450 (🔍)
GCVE (CVE): GCVE-0-2021-45450
GCVE (VulDB): GCVE-100-188814

Entryinfo

Created: 12/21/2021 12:43
Updated: 06/06/2026 00:54
Changes: 12/21/2021 12:43 (39), 12/21/2021 12:44 (1), 12/25/2021 09:54 (1), 06/06/2026 00:54 (33)
Complete: 🔍
Cache ID: 216::103

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