7.5 High
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
0.004 Low
EPSS
Percentile
74.2%
In wolfSSL before 5.5.1, malicious clients can cause a buffer overflow during a TLS 1.3 handshake. This occurs when an attacker supposedly resumes a previous TLS session. During the resumption Client Hello a Hello Retry Request must be triggered. Both Client Hellos are required to contain a list of duplicate cipher suites to trigger the buffer overflow. In total, two Client Hellos have to be sent: one in the resumed session, and a second one as a response to a Hello Retry Request message.
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Debian | 12 | all | wolfssl | < 5.5.3-1 | wolfssl_5.5.3-1_all.deb |
Debian | 11 | all | wolfssl | < 4.6.0+p1-0+deb11u2 | wolfssl_4.6.0+p1-0+deb11u2_all.deb |
Debian | 999 | all | wolfssl | < 5.5.3-1 | wolfssl_5.5.3-1_all.deb |
Debian | 13 | all | wolfssl | < 5.5.3-1 | wolfssl_5.5.3-1_all.deb |