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CVE-2025-68724

HIGHCVSS 7.8/10EPSS 0.18%

Last modified

CVE-2025-68724 is a high-severity vulnerability rated 7.8/10 on the CVSS scale. 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 estimates a 0.18% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
7.8/10

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS Probability
0.18%

7.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < 60a7be5ee74408147e439164ac067e418ca74bb4; >= 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < c13c6e9de91d7f1dd7df756b1fa5a1f968839d76; >= 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < dfc1613961828745165aec6552c3818fa14ab725; >= 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < 5b8ac617c8dab5cad3c4dc8d84d0987808a0f99c; >= 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < c73be4f51eed98fa0c7c189db8f279e1c86bfbf7; >= 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < 6af753ac5205115e6c310c8c4236c01b59a1c44f; >= 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < b7090a5c153105b9fd221a5a81459ee8cd5babd6; >= 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < df0845cf447ae1556c3440b8b155de0926cbaa56
LinuxLinux3.18

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is 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.
How severe is CVE-2025-68724?
CVE-2025-68724 has a CVSS score of 7.8/10 (HIGH severity). The EPSS model estimates a 0.18% probability of exploitation in the next 30 days.
How do I fix CVE-2025-68724?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST