CVE-2020-12457
—CVSS 3.1
7.5 high
EPSS
2%p73
Published
()
Modified
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.
- Vendors
- wolfssl
- Products
- wolfssl
- Weakness
- CWE-835
- Vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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