Vulnerability · Published Jan 21, 2024 · Assigned by mitre
CVE-2023-52353
High 7.5
In plain English
A high-severity session fixation in the mbedtls package (Ubuntu). Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 40% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.5%top 59.6% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
An issue was discovered in Mbed TLS through 3.5.1. In mbedtls_ssl_session_reset, the maximum negotiable TLS version is mishandled. For example, if the last connection negotiated TLS 1.2, then 1.2 becomes the new maximum.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | mbedtls | no fix listed | UBUNTU-CVE-2023-52353 |
| Ubuntu:24.04:LTS | mbedtls | no fix listed | UBUNTU-CVE-2023-52353 |
Affected products (as reported)
Weakness: CWE-384 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N