7.8

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

Deferred
AliasesUBUNTU-CVE-2025-68724DEBIAN-CVE-2025-68724
Published 24-12-2025Last modified 15-10-2026

Vulnerability summary

CVE-2025-68724 is a high (CVSS 7.8) vulnerability in linux. EPSS estimates a 0.14% chance of exploitation in the next 30 days, higher than 3.4% of scored vulnerabilities.

Priority
Routine

Not severe (CVSS 7.8, local access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.14%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedNot listed by any tracked catalog.
RansomwareNot flaggedNo ransomware use recorded.
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 60 · Related 46
DLA-4475-1DLA-4476-1DSA-6127-1OPENSUSE-SU-2026:10039-1OPENSUSE-SU-2026:10301-1OPENSUSE-SU-2026:20145-1

Timeline

  1. 24-12-2025
    PublishedVulnerability first disclosed.
  2. 15-10-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

4 scores · 4 sources · 1 version

EPSS trend

Probability

0.14%

Chance of exploitation in the next 30 days

Percentile

3%

Versus all other CVEs

30-day change

No change 0.00 pp

From 0.14% on 04-10-2026

04-10-202603-11-2026

Known exploited

Compare KEV catalogs
CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

No weakness data has been published for this record.

Affected systems

Version check

Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.

Ubuntu156 products
  • linuxAll versions (No fix recorded) | < 5.15.0-173.183 | < 6.8.0-110.110 | < 6.17.0-19.19
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 5.15.0-1103.110 | < 6.8.0-1052.55 | < 6.17.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Debian1 product
  • linux< 6.1.162-1 | < 6.12.63-1 | < 6.17.13-1
Linux1 product
  • linux≥ 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < 60a7be5ee74408147e439164ac067e418ca74bb4 | ≥ 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < c13c6e9de91d7f1dd7df756b1fa5a1f968839d76 | ≥ 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < dfc1613961828745165aec6552c3818fa14ab725 | ≥ 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < 5b8ac617c8dab5cad3c4dc8d84d0987808a0f99c | ≥ 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < c73be4f51eed98fa0c7c189db8f279e1c86bfbf7 | ≥ 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < 6af753ac5205115e6c310c8c4236c01b59a1c44f | ≥ 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < b7090a5c153105b9fd221a5a81459ee8cd5babd6 | ≥ 7901c1a8effbe5f89673bfc09d6e37b8f334f1a7, < df0845cf447ae1556c3440b8b155de0926cbaa56 | 3.18

3 vendors · 158 products

References

44 links
Show all 44 references