CVE-2022-39173

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.

CVSS v3.0 7.5 HIGH

7.5^/10

CVSS v3.0 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://www.wolfssl.com/docs/security-vulnerabilities/	Vendor Advisory
https://github.com/wolfSSL/wolfssl/releases	Release Notes Third Party Advisory
http://seclists.org/fulldisclosure/2022/Oct/24	Mailing List Third Party Advisory
http://packetstormsecurity.com/files/169600/wolfSSL-Buffer-Overflow.html	Exploit Third Party Advisory VDB Entry
https://blog.trailofbits.com/2023/01/12/wolfssl-vulnerabilities-tlspuffin-fuzzing-ssh/

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Configurations

Configuration 1 (hide)

cpe:2.3:a:wolfssl:wolfssl:*:*:*:*:*:*:*:*

Information

Published : 2022-09-28 18:15

Updated : 2023-02-15 14:15

NVD link : CVE-2022-39173

Mitre link : CVE-2022-39173

JSON object : View

CWE

CWE-120

Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')

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Products Affected

wolfssl

wolfssl

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