CVE-2020-12457
Summary
| CVE | CVE-2020-12457 |
|---|---|
| State | PUBLIC |
| Assigner | [email protected] |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2020-08-21 14:15:00 UTC |
| Updated | 2021-07-21 11:39:00 UTC |
| Description | An issue was discovered in wolfSSL before 4.5.0. It mishandles the change_cipher_spec (CCS) message processing logic for TLS 1.3. If an attacker sends ChangeCipherSpec messages in a crafted way involving more than one in a row, the server becomes stuck in the ProcessReply() loop, i.e., a denial of service. |
Risk And Classification
Problem Types: CWE-835
NVD Known Affected Configurations (CPE 2.3)
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| Release wolfSSL Release 4.5.0 (08/19/2020) · wolfSSL/wolfssl · GitHub | CONFIRM | github.com | Third Party Advisory |
| In TLS 1.3, don't allow multiple ChangeCipherSpecs in a row by SparkiDev · Pull Request #2927 · wolfSSL/wolfssl · GitHub | MISC | github.com | Patch, Third Party Advisory |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
Legacy QID Mappings
- 180739 Debian Security Update for wolfssl (CVE-2020-12457)