Vulnerability in Linux

CVE-2025-68724

In the Linux kernel, the following vulnerability has been resolved: crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id Use check_add_overflow() to guard against potential integer overflows when adding the binary blob lengths and the size of an asymmetric_key_id structure and return ERR_PTR(-EOVERFLOW) accordingly. This prevents a possible buffer overflow when copying data from potentially malicious X.509 certificate fields that can be arbitrarily large, such as ASN.1 INTEGER serial numbers, issuer names, etc.

EPSS: 0.002 (7.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

  • Linux — versions 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, 3.18, 0

References

Frequently asked questions

What is CVE-2025-68724?
CVE-2025-68724 is a high-severity vulnerability in Linux. CVSS score: 7.8/10. Published 2025-12-24.
How severe is CVE-2025-68724?
High severity. CVSS v3 base score is 7.8 out of 10.