Wolfssl: >> Wolfssl >> 4.3.0 Security Vulnerabilities
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.
CVSS Score
7.5
EPSS Score
0.015
Published
2020-08-21
The private-key operations in ecc.c in wolfSSL before 4.4.0 do not use a constant-time modular inverse when mapping to affine coordinates, aka a "projective coordinates leak."
CVSS Score
5.3
EPSS Score
0.013
Published
2020-06-25
wolfSSL 4.3.0 has mulmod code in wc_ecc_mulmod_ex in ecc.c that does not properly resist timing side-channel attacks.
CVSS Score
7.5
EPSS Score
0.02
Published
2020-04-12
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