Upstream information
Description
An issue was discovered in Mbed TLS before 2.28.1 and 3.x before 3.2.0. In some configurations, an unauthenticated attacker can send an invalid ClientHello message to a DTLS server that causes a heap-based buffer over-read of up to 255 bytes. This can cause a server crash or possibly information disclosure based on error responses. Affected configurations have MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE enabled and MBEDTLS_SSL_IN_CONTENT_LEN less than a threshold that depends on the configuration: 258 bytes if using mbedtls_ssl_cookie_check, and possibly up to 571 bytes with a custom cookie check function.SUSE information
Overall state of this security issue: Resolved
This issue is currently rated as having critical severity.
National Vulnerability Database | |
---|---|
Base Score | 9.1 |
Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H |
Attack Vector | Network |
Attack Complexity | Low |
Privileges Required | None |
User Interaction | None |
Scope | Unchanged |
Confidentiality Impact | High |
Integrity Impact | None |
Availability Impact | High |
CVSSv3 Version | 3.1 |
SUSE Security Advisories:
- openSUSE-SU-2022:10247-1, published Thu Dec 22 18:45:01 2022
List of released packages
Product(s) | Fixed package version(s) | References |
---|---|---|
SUSE Package Hub 15 SP3 |
| Patchnames: openSUSE-2022-10247 |
openSUSE Leap 15.3 |
| Patchnames: openSUSE-2022-10247 |
openSUSE Tumbleweed |
| Patchnames: openSUSE-Tumbleweed-2024-12478 |
SUSE Timeline for this CVE
CVE page created: Fri Jul 15 18:11:21 2022CVE page last modified: Tue Sep 3 19:26:12 2024