CVE-2024-28755

Description

An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When an SSL context was reset with the mbedtls_ssl_session_reset() API, the maximum TLS version to be negotiated was not restored to the configured one. An attacker was able to prevent an Mbed TLS server from establishing any TLS 1.3 connection, potentially resulting in a Denial of Service or forced version downgrade from TLS 1.3 to TLS 1.2.

Category

6.5
CVSS
Severity: Medium
CVSS 3.1 •
EPSS 0.07%
Vendor Advisory readthedocs.io
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/ vendor advisory
https://hey3e.github.io not applicable
https://github.com/hey3e not applicable
https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0 release notes

Frequently Asked Questions

What is the severity of CVE-2024-28755?
CVE-2024-28755 has been scored as a medium severity vulnerability.
How to fix CVE-2024-28755?
To fix CVE-2024-28755, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-28755 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-28755 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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