Out-of-bounds Read in Yubico Yubihsm 2 Sdk
CVE-2023-39908
The PKCS11 module of the YubiHSM 2 SDK through 2023.01 does not properly validate the length of specific read operations on object metadata. This may lead to disclosure of uninitialized and previously used memory.
Vulnerability class: Buffer Overflow
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.006 (45.6th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 46th percentile — 45.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000
Affected products
Weakness classification (CWE)
References
- www.yubico.com/support/security-advisories/ysa-2023-01/ (Patch, Vendor Advisory)
- blog.inhq.net/posts/yubico-yubihsm-pkcs-vuln/
Frequently asked questions
- What is CVE-2023-39908?
- CVE-2023-39908 is a high-severity vulnerability in Yubico Yubihsm 2 Sdk, classified under Out-of-bounds Read. CVSS score: 7.5/10. Published 2023-08-14.
- How severe is CVE-2023-39908?
- High severity. CVSS v3 base score is 7.5 out of 10.