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CVE-2025-68724
crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id
Description

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.

INFO

Published Date :

Dec. 24, 2025, 11:16 a.m.

Last Modified :

Jan. 19, 2026, 1:16 p.m.

Remotely Exploit :

No

Source :

416baaa9-dc9f-4396-8d5f-8c081fb06d67
Affected Products

The following products are affected by CVE-2025-68724 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID Vendor Product Action
1 Linux linux_kernel
: Total Affected Vendor : 1 | Products : 1
Solution
Prevent integer overflows to avoid buffer overflows in key ID generation.
  • Apply kernel patches to fix asymmetric_key_generate_id.
  • Update the Linux kernel to the latest secure version.
  • Validate certificate field sizes during processing.
References to Advisories, Solutions, and Tools

Here, you will find a curated list of external links that provide in-depth information, practical solutions, and valuable tools related to CVE-2025-68724.

URL Resource
https://git.kernel.org/stable/c/5b8ac617c8dab5cad3c4dc8d84d0987808a0f99c
https://git.kernel.org/stable/c/60a7be5ee74408147e439164ac067e418ca74bb4
https://git.kernel.org/stable/c/6af753ac5205115e6c310c8c4236c01b59a1c44f
https://git.kernel.org/stable/c/b7090a5c153105b9fd221a5a81459ee8cd5babd6
https://git.kernel.org/stable/c/c13c6e9de91d7f1dd7df756b1fa5a1f968839d76
https://git.kernel.org/stable/c/c73be4f51eed98fa0c7c189db8f279e1c86bfbf7
https://git.kernel.org/stable/c/df0845cf447ae1556c3440b8b155de0926cbaa56
https://git.kernel.org/stable/c/dfc1613961828745165aec6552c3818fa14ab725
CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorizes the common flaws or weaknesses that can lead to vulnerabilities. CVE-2025-68724 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2025-68724 weaknesses.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2025-68724 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

The following table lists the changes that have been made to the CVE-2025-68724 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.

  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jan. 19, 2026

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/60a7be5ee74408147e439164ac067e418ca74bb4
    Added Reference https://git.kernel.org/stable/c/c13c6e9de91d7f1dd7df756b1fa5a1f968839d76
  • CVE Modified by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jan. 11, 2026

    Action Type Old Value New Value
    Added Reference https://git.kernel.org/stable/c/5b8ac617c8dab5cad3c4dc8d84d0987808a0f99c
    Added Reference https://git.kernel.org/stable/c/dfc1613961828745165aec6552c3818fa14ab725
  • New CVE Received by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Dec. 24, 2025

    Action Type Old Value New Value
    Added Description 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.
    Added Reference https://git.kernel.org/stable/c/6af753ac5205115e6c310c8c4236c01b59a1c44f
    Added Reference https://git.kernel.org/stable/c/b7090a5c153105b9fd221a5a81459ee8cd5babd6
    Added Reference https://git.kernel.org/stable/c/c73be4f51eed98fa0c7c189db8f279e1c86bfbf7
    Added Reference https://git.kernel.org/stable/c/df0845cf447ae1556c3440b8b155de0926cbaa56
EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.
Vulnerability Scoring Details
No CVSS metrics available for this vulnerability.