Mbed TLS up to 2.28.4/3.4.x buffer overflow

CVSS Meta Temp Score
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CTI Interest Score
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6.4$0-$5k0.78

Summaryinfo

A vulnerability identified as critical has been detected in Mbed TLS up to 2.28.4/3.4.x. Affected by this issue is some unknown functionality. This manipulation causes buffer overflow. This vulnerability is registered as CVE-2023-43615. No exploit is available. You should upgrade the affected component.

Detailsinfo

A vulnerability was found in Mbed TLS up to 2.28.4/3.4.x. It has been declared as critical. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a buffer overflow vulnerability. The CWE definition for the vulnerability is 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. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

Mbed TLS 2.x before 2.28.5 and 3.x before 3.5.0 has a Buffer Overflow.

The weakness was published 10/07/2023. It is possible to read the advisory at mbed-tls.readthedocs.io. This vulnerability is known as CVE-2023-43615 since 09/20/2023. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 211936 (CBL Mariner 2.0 Security Update: hvloader (CVE-2023-43615)), which helps to determine the existence of the flaw in a target environment.

Upgrading to version 2.28.5 or 3.5.0 eliminates this vulnerability.

The vulnerability is also documented in the databases at Tenable (211936) and EUVD (EUVD-2023-48021). Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

Vendor

Name

Version

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

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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: Yes

Availability: 🔍
Status: Not defined

EPSS Score: 🔍
EPSS Percentile: 🔍

Price Prediction: 🔍
Current Price Estimation: 🔍

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Nessus ID: 211936
Nessus Name: CBL Mariner 2.0 Security Update: hvloader (CVE-2023-43615)

Threat Intelligenceinfo

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

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔍

Upgrade: TLS 2.28.5/3.5.0

Timelineinfo

09/20/2023 🔍
10/07/2023 +17 days 🔍
10/07/2023 +0 days 🔍
06/06/2026 +972 days 🔍

Sourcesinfo

Advisory: FEDORA-2023-5c6521d81d
Status: Confirmed

CVE: CVE-2023-43615 (🔍)
GCVE (CVE): GCVE-0-2023-43615
GCVE (VulDB): GCVE-100-241495
EUVD: 🔍

Entryinfo

Created: 10/07/2023 08:32
Updated: 06/06/2026 01:46
Changes: 10/07/2023 08:32 (38), 10/27/2023 11:22 (1), 11/28/2024 11:51 (17), 02/07/2026 06:06 (1), 06/06/2026 01:46 (13)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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