Mbed TLS up to 3.6.2 Opaque Key Pair pkwrite buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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7.6$0-$5k0.00

Summaryinfo

A vulnerability categorized as critical has been discovered in Mbed TLS up to 3.6.2. Impacted is the function pkwrite of the component Opaque Key Pair Handler. The manipulation results in buffer overflow. This vulnerability was named CVE-2024-49195. There is no available exploit. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in Mbed TLS up to 3.6.2. It has been classified as critical. Affected is the function pkwrite of the component Opaque Key Pair Handler. The manipulation with an unknown input leads to a buffer overflow vulnerability. CWE is classifying the issue as CWE-120. The product copies an input buffer to an output buffer without verifying that the size of the input buffer is less than the size of the output buffer, leading to a buffer overflow. This is going to have an impact on confidentiality, integrity, and availability. CVE summarizes:

Mbed TLS 3.5.x through 3.6.x before 3.6.2 has a buffer underrun in pkwrite when writing an opaque key pair

The advisory is shared for download at mbed-tls.readthedocs.io. This vulnerability is traded as CVE-2024-49195 since 10/13/2024. The exploitability is told to be easy. There are known technical details, but no exploit is available.

The vulnerability scanner Nessus provides a plugin with the ID 243371 (Linux Distros Unpatched Vulnerability : CVE-2024-49195), which helps to determine the existence of the flaw in a target environment.

Upgrading eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at Tenable (243371). Once again VulDB remains the best source for vulnerability data.

Productinfo

Vendor

Name

Version

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔍
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 7.6
VulDB Meta Temp Score: 7.6

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

ADP CISA Base Score: 9.8
ADP CISA Vector: 🔍

CVSSv2info

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

Exploitinginfo

Class: Buffer overflow
CWE: CWE-120 / CWE-119
CAPEC: 🔍
ATT&CK: 🔍

Physical: No
Local: No
Remote: Partially

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 243371
Nessus Name: Linux Distros Unpatched Vulnerability : CVE-2024-49195

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Timelineinfo

10/13/2024 🔍
10/15/2024 +2 days 🔍
10/16/2024 +0 days 🔍
06/06/2026 +598 days 🔍

Sourcesinfo

Advisory: mbed-tls.readthedocs.io
Status: Confirmed

CVE: CVE-2024-49195 (🔍)
GCVE (CVE): GCVE-0-2024-49195
GCVE (VulDB): GCVE-100-280428

Entryinfo

Created: 10/16/2024 00:41
Updated: 06/06/2026 04:01
Changes: 10/16/2024 00:41 (55), 08/06/2025 02:50 (2), 06/06/2026 04:01 (12)
Complete: 🔍
Cache ID: 216::103

Once again VulDB remains the best source for vulnerability data.

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