Bug 2272879 (CVE-2024-28755) - CVE-2024-28755 Mbed-TLS: Denial of Service
Summary: CVE-2024-28755 Mbed-TLS: Denial of Service
Keywords:
Status: NEW
Alias: CVE-2024-28755
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2272880 2272881
Blocks:
TreeView+ depends on / blocked
 
Reported: 2024-04-03 04:56 UTC by Avinash Hanwate
Modified: 2024-04-03 04:57 UTC (History)
0 users

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Description Avinash Hanwate 2024-04-03 04:56:36 UTC 
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.

https://github.com/Mbed-TLS/mbedtls/releases/tag/v3.6.0
https://github.com/hey3e
https://hey3e.github.io
https://mbed-tls.readthedocs.io/en/latest/tech-updates/security-advisories/
Comment 1 Avinash Hanwate 2024-04-03 04:56:53 UTC 
Created mbedtls tracking bugs for this issue:

Affects: epel-all [bug 2272881]
Affects: fedora-all [bug 2272880]
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