Vulnerability in Wolfssl
CVE-2022-23408
wolfSSL 5.x before 5.1.1 uses non-random IV values in certain situations. This affects connections (without AEAD) using AES-CBC or DES3 with TLS 1.1 or 1.2 or DTLS 1.1 or 1.2. This occurs because of misplaced memory initialization in BuildMessage in internal.c.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.1 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N.
EPSS exploit prediction
EPSS: 0.014 (71.7th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 72nd percentile — 71.7% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.014 · newest: 0.014 · change: 0.000
Affected products
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/wolfSSL/wolfssl/pull/4710 (Third Party Advisory)
- github.com/wolfSSL/wolfssl/blob/master/ChangeLog.md (Third Party Advisory, Release Notes)
Frequently asked questions
- What is CVE-2022-23408?
- CVE-2022-23408 is a critical-severity vulnerability in Wolfssl, classified under Use of Insufficiently Random Values. CVSS score: 9.1/10. Published 2022-01-18.
- How severe is CVE-2022-23408?
- Critical severity. CVSS v3 base score is 9.1 out of 10.
- Is CVE-2022-23408 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.