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TI-2025-42193 Aliases CVE-2025-68724GHSA-fhmc-454p-hp6f

crypto: asymmetric_keys - prevent overflow in asymmetric_key_generate_id

Priority LOW 39Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 38 fixed, 1 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00142 3rd percentileScored 2026-11-07
Fix Partial Linux (Linux): 5.10.248, 5.15.198, 6.1.160 +5Red Hat: 12 advisoriesRed Hat: 38 fixed, 1 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux3.18 and later5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.63, 6.17.13, 6.18.2, 6.19Patch availableCNA
  • Linux VendorLinux Affected 3.18 and later Fixed in 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.63, 6.17.13, 6.18.2, 6.19 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*——Linux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions — — ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 5.10.248, 5.15.198, 6.1.160, 6.6.120, 6.12.63, 6.17.13, 6.18.2, 6.19

Red Hat 12 advisories

  • RHSA-2026:47633 Released 2026-07-30 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.4) bpftool-4.18.0-305.199.1.el8_4, kernel-4.18.0-305.199.1.el8_4, kernel-abi-stablelists-4.18.0-305.199.1.el8_4 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4) bpftool-4.18.0-305.199.1.el8_4, kernel-4.18.0-305.199.1.el8_4, kernel-abi-stablelists-4.18.0-305.199.1.el8_4 +14
  • RHSA-2026:39371 Released 2026-07-14 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream EUS (v. 10.0) kernel-64k-debug-devel-6.12.0-55.88.1.el10_0, kernel-64k-debug-devel-matched-6.12.0-55.88.1.el10_0, kernel-64k-devel-6.12.0-55.88.1.el10_0 +12
    • Red Hat Enterprise Linux BaseOS EUS (v. 10.0) kernel-6.12.0-55.88.1.el10_0, kernel-64k-6.12.0-55.88.1.el10_0, kernel-64k-core-6.12.0-55.88.1.el10_0 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0) kernel-tools-libs-devel-6.12.0-55.88.1.el10_0, libperf-6.12.0-55.88.1.el10_0
    • Red Hat Enterprise Linux Real Time EUS (v. 10.0) kernel-rt-6.12.0-55.88.1.el10_0, kernel-rt-64k-6.12.0-55.88.1.el10_0, kernel-rt-64k-core-6.12.0-55.88.1.el10_0 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0) kernel-rt-6.12.0-55.88.1.el10_0, kernel-rt-core-6.12.0-55.88.1.el10_0, kernel-rt-debug-6.12.0-55.88.1.el10_0 +11
  • RHSA-2026:26563 Released 2026-06-17 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v.8.8) bpftool-4.18.0-477.147.1.el8_8, kernel-4.18.0-477.147.1.el8_8, kernel-abi-stablelists-4.18.0-477.147.1.el8_8 +14
    • Red Hat Enterprise Linux BaseOS TUS (v.8.8) bpftool-4.18.0-477.147.1.el8_8, kernel-4.18.0-477.147.1.el8_8, kernel-abi-stablelists-4.18.0-477.147.1.el8_8 +14
Show 9 more Red Hat advisories
  • RHSA-2026:26515 Released 2026-06-17 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.2) kernel-64k-debug-devel-5.14.0-284.176.1.el9_2, kernel-64k-debug-devel-matched-5.14.0-284.176.1.el9_2, kernel-64k-devel-5.14.0-284.176.1.el9_2 +10
    • Red Hat Enterprise Linux BaseOS E4S (v.9.2) bpftool-7.0.0-284.176.1.el9_2, kernel-5.14.0-284.176.1.el9_2, kernel-64k-5.14.0-284.176.1.el9_2 +29
  • RHSA-2026:26462 Released 2026-06-17 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time E4S (v.9.2) kernel-rt-5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-core-5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-5.14.0-284.176.1.rt14.461.el9_2 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2) kernel-rt-5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-core-5.14.0-284.176.1.rt14.461.el9_2, kernel-rt-debug-5.14.0-284.176.1.rt14.461.el9_2 +11
  • RHSA-2026:25533 Released 2026-06-12 · Red Hat rating Critical
    kernel security update
    • Red Hat Enterprise Linux BaseOS AUS (v.8.6) bpftool-4.18.0-372.195.1.el8_6, kernel-4.18.0-372.195.1.el8_6, kernel-abi-stablelists-4.18.0-372.195.1.el8_6 +14
    • Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6) bpftool-4.18.0-372.195.1.el8_6, kernel-4.18.0-372.195.1.el8_6, kernel-abi-stablelists-4.18.0-372.195.1.el8_6 +14
  • RHSA-2026:25218 Released 2026-06-11 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder EUS (v.9.6) kernel-tools-libs-devel-5.14.0-570.120.1.el9_6, libperf-5.14.0-570.120.1.el9_6
    • Red Hat Enterprise Linux AppStream EUS (v.9.6) kernel-64k-debug-devel-5.14.0-570.120.1.el9_6, kernel-64k-debug-devel-matched-5.14.0-570.120.1.el9_6, kernel-64k-devel-5.14.0-570.120.1.el9_6 +12
    • Red Hat Enterprise Linux BaseOS EUS (v.9.6) kernel-5.14.0-570.120.1.el9_6, kernel-64k-5.14.0-570.120.1.el9_6, kernel-64k-core-5.14.0-570.120.1.el9_6 +28
    • Red Hat Enterprise Linux Real Time EUS (v.9.6) kernel-rt-5.14.0-570.120.1.el9_6, kernel-rt-64k-5.14.0-570.120.1.el9_6, kernel-rt-64k-core-5.14.0-570.120.1.el9_6 +21
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6) kernel-rt-5.14.0-570.120.1.el9_6, kernel-rt-core-5.14.0-570.120.1.el9_6, kernel-rt-debug-5.14.0-570.120.1.el9_6 +11
  • RHSA-2026:23237 Released 2026-06-04 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream E4S (v.9.4) kernel-64k-debug-devel-5.14.0-427.129.1.el9_4, kernel-64k-debug-devel-matched-5.14.0-427.129.1.el9_4, kernel-64k-devel-5.14.0-427.129.1.el9_4 +11
    • Red Hat Enterprise Linux BaseOS E4S (v.9.4) bpftool-7.3.0-427.129.1.el9_4, kernel-5.14.0-427.129.1.el9_4, kernel-64k-5.14.0-427.129.1.el9_4 +29
    • Red Hat Enterprise Linux Real Time E4S (v.9.4) kernel-rt-5.14.0-427.129.1.el9_4, kernel-rt-core-5.14.0-427.129.1.el9_4, kernel-rt-debug-5.14.0-427.129.1.el9_4 +9
    • Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4) kernel-rt-5.14.0-427.129.1.el9_4, kernel-rt-core-5.14.0-427.129.1.el9_4, kernel-rt-debug-5.14.0-427.129.1.el9_4 +11
  • RHSA-2026:21556 Released 2026-05-28 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-687.12.1.el9_8, kernel-64k-debug-devel-matched-5.14.0-687.12.1.el9_8, kernel-64k-devel-5.14.0-687.12.1.el9_8 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-687.12.1.el9_8, kernel-64k-5.14.0-687.12.1.el9_8, kernel-64k-core-5.14.0-687.12.1.el9_8 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-687.12.1.el9_8, libperf-5.14.0-687.12.1.el9_8
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-687.12.1.el9_8, kernel-rt-64k-5.14.0-687.12.1.el9_8, kernel-rt-64k-core-5.14.0-687.12.1.el9_8 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-687.12.1.el9_8, kernel-rt-core-5.14.0-687.12.1.el9_8, kernel-rt-debug-5.14.0-687.12.1.el9_8 +9
  • RHSA-2026:19569 Released 2026-05-20 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.16.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.16.1.el10_2, kernel-64k-devel-6.12.0-211.16.1.el10_2 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.16.1.el10_2, kernel-64k-6.12.0-211.16.1.el10_2, kernel-64k-core-6.12.0-211.16.1.el10_2 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.16.1.el10_2, libperf-6.12.0-211.16.1.el10_2
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.16.1.el10_2, kernel-rt-64k-6.12.0-211.16.1.el10_2, kernel-rt-64k-core-6.12.0-211.16.1.el10_2 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.16.1.el10_2, kernel-rt-core-6.12.0-211.16.1.el10_2, kernel-rt-debug-6.12.0-211.16.1.el10_2 +9
  • RHSA-2026:13577 Released 2026-05-05 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-553.123.1.el8_10, kernel-4.18.0-553.123.1.el8_10, kernel-abi-stablelists-4.18.0-553.123.1.el8_10 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-553.123.1.el8_10
  • RHSA-2026:13578 Released 2026-05-05 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-core-4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-debug-4.18.0-553.123.1.rt7.464.el8_10 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-core-4.18.0-553.123.1.rt7.464.el8_10, kernel-rt-debug-4.18.0-553.123.1.rt7.464.el8_10 +7

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat CodeReady Linux Builder EUS (v.9.6)Fixed RHSA-2026:25218
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:19569
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:21556
Red Hat Enterprise Linux AppStream E4S (v.9.2)Fixed RHSA-2026:26515
Red Hat Enterprise Linux AppStream E4S (v.9.4)Fixed RHSA-2026:23237
Red Hat Enterprise Linux AppStream EUS (v. 10.0)Fixed RHSA-2026:39371
Red Hat Enterprise Linux AppStream EUS (v.9.6)Fixed RHSA-2026:25218
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:19569
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2026:13577
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:21556
Red Hat Enterprise Linux BaseOS AUS (v.8.4)Fixed RHSA-2026:47633
Red Hat Enterprise Linux BaseOS AUS (v.8.6)Fixed RHSA-2026:25533
Red Hat Enterprise Linux BaseOS E4S (v.8.8)Fixed RHSA-2026:26563
Red Hat Enterprise Linux BaseOS E4S (v.9.2)Fixed RHSA-2026:26515
Red Hat Enterprise Linux BaseOS E4S (v.9.4)Fixed RHSA-2026:23237
Red Hat Enterprise Linux BaseOS EUS (v. 10.0)Fixed RHSA-2026:39371
Red Hat Enterprise Linux BaseOS EUS (v.9.6)Fixed RHSA-2026:25218
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.4)Fixed RHSA-2026:47633
Red Hat Enterprise Linux BaseOS EUS EXTENSION (v.8.6)Fixed RHSA-2026:25533
Red Hat Enterprise Linux BaseOS TUS (v.8.8)Fixed RHSA-2026:26563
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2026:13577
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:19569
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:21556
Red Hat Enterprise Linux CodeReady Linux Builder EUS (v. 10.0)Fixed RHSA-2026:39371
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2026:13578
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2026:13578
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:19569
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2026:21556
Red Hat Enterprise Linux Real Time E4S (v.9.2)Fixed RHSA-2026:26462
Red Hat Enterprise Linux Real Time E4S (v.9.4)Fixed RHSA-2026:23237
Red Hat Enterprise Linux Real Time EUS (v. 10.0)Fixed RHSA-2026:39371
Red Hat Enterprise Linux Real Time EUS (v.9.6)Fixed RHSA-2026:25218
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:19569
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2026:21556
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.2)Fixed RHSA-2026:26462
Red Hat Enterprise Linux Real Time for NFV E4S (v.9.4)Fixed RHSA-2026:23237
Red Hat Enterprise Linux Real Time for NFV EUS (v. 10.0)Fixed RHSA-2026:39371
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.6)Fixed RHSA-2026:25218
Not affected: 2 products
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2025-68724
  2. 2026-10-03 Alias added: GHSA-fhmc-454p-hp6f

References

Other 8

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
See all 21741 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences