UBUNTU-CVE-2024-28755

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Source
https://ubuntu.com/security/CVE-2024-28755
Import Source
https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2024/UBUNTU-CVE-2024-28755.json
JSON Data
https://api.osv.dev/v1/vulns/UBUNTU-CVE-2024-28755
Upstream
Published
2024-04-03T03:15:00Z
Modified
2025-07-14T06:35:48.337964Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L CVSS Calculator
  • - medium
Summary
[none]
Details

An issue was discovered in Mbed TLS 3.5.x before 3.6.0. When an SSL context was reset with the mbedtlssslsession_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.

References

Affected packages

Ubuntu:Pro:16.04:LTS / mbedtls

Package

Name
mbedtls
Purl
pkg:deb/ubuntu/mbedtls@2.2.1-2ubuntu0.3?arch=source&distro=esm-apps/xenial

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.1.2-1
2.2.0-1
2.2.1-1
2.2.1-2
2.2.1-2ubuntu0.1
2.2.1-2ubuntu0.2
2.2.1-2ubuntu0.3

Ubuntu:Pro:18.04:LTS / mbedtls

Package

Name
mbedtls
Purl
pkg:deb/ubuntu/mbedtls@2.8.0-1?arch=source&distro=esm-apps/bionic

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.5.1-1ubuntu1
2.6.0-1
2.7.0-2
2.8.0-1

Ubuntu:Pro:20.04:LTS / mbedtls

Package

Name
mbedtls
Purl
pkg:deb/ubuntu/mbedtls@2.16.4-1ubuntu2?arch=source&distro=esm-apps/focal

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.16.2-1
2.16.3-1
2.16.4-1ubuntu2

Ubuntu:22.04:LTS / mbedtls

Package

Name
mbedtls
Purl
pkg:deb/ubuntu/mbedtls@2.28.0-1build1?arch=source&distro=jammy

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.16.9-0.1ubuntu1
2.16.11-0.1ubuntu1
2.16.11-0.3
2.28.0-1
2.28.0-1build1

Ubuntu:24.04:LTS / mbedtls

Package

Name
mbedtls
Purl
pkg:deb/ubuntu/mbedtls@2.28.8-1?arch=source&distro=noble

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.28.3-1
2.28.6-1ubuntu1
2.28.7-1ubuntu1
2.28.7-1.1ubuntu1
2.28.8-1

Ubuntu:25.04 / mbedtls

Package

Name
mbedtls
Purl
pkg:deb/ubuntu/mbedtls@3.6.2-3ubuntu1?arch=source&distro=plucky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

2.*

2.28.8-1

3.*

3.6.2-1ubuntu4
3.6.2-2ubuntu1
3.6.2-3ubuntu1