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TI-2020-15679 Aliases CVE-2020-25662GHSA-6v9p-cxvf-8f7v

Improper access control in Red Hat kernel

Priority LOW 31CWE-284Published · Updated

Key facts

Attack vector
Adjacent network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-284.

Summary

A Red Hat only CVE-2020-12352 regression issue was found in the way the Linux kernel's Bluetooth stack implementation handled the initialization of stack memory when handling certain AMP packets. This flaw allows a remote attacker in an adjacent range to leak small portions of stack memory on the system by sending specially crafted AMP packets. The highest threat from this vulnerability is to data confidentiality.

Why it matters now

EPSS 0.01182 67th percentileScored 2026-11-07
Fix Fixed Red Hat: 2 advisories

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
Red Hatkernelkernel-4.18.0-240.el8—No fix listedCNA
  • kernel VendorRed Hat Affected kernel-4.18.0-240.el8 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux:8.3:*:*:*:*:*:*:*8.3VulnerableRed Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.3:*:*:*:*:*:*:* Versions 8.3 Vulnerable ·Red Hat

Remediation

Red Hat 2 advisories

  • RHSA-2020:4685 Released 2020-11-04 · Red Hat rating Important
    kernel security update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-240.1.1.el8_3
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-240.1.1.el8_3, kernel-4.18.0-240.1.1.el8_3, kernel-abi-whitelists-4.18.0-240.1.1.el8_3 +19
  • RHSA-2020:4686 Released 2020-11-04 · Red Hat rating Important
    kernel-rt security update
    • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-240.1.1.rt7.55.el8_3, kernel-rt-core-4.18.0-240.1.1.rt7.55.el8_3, kernel-rt-debug-4.18.0-240.1.1.rt7.55.el8_3 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-240.1.1.rt7.55.el8_3, kernel-rt-core-4.18.0-240.1.1.rt7.55.el8_3, kernel-rt-debug-4.18.0-240.1.1.rt7.55.el8_3 +9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2020:4685
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2020:4685
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2020:4686
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2020:4686
Not affected: 4 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise MRG 2

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-25662
  2. 2026-10-03 Alias added: GHSA-6v9p-cxvf-8f7v

References

Advisory 3

  • TI-2019-08259 Underflow in PHP-FPM can lead to RCE KEVCVSS 3.1CRITICAL 9.8
  • TI-2018-10530 Code injection in [UNKNOWN] RichFaces KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05975 GNU Bash through 4.3 bash43-025 processes trailing strings after certain malformed… KEVCVSS 3.1CRITICAL 9.8
  • TI-2014-05157 GNU Bash through 4.3 processes trailing strings after function definitions in the values… KEVCVSS 3.1CRITICAL 9.8
  • TI-2025-23530 Sudo before 1.9.17p1 allows local users to obtain root access because /etc/nsswitch.conf… KEVCVSS 3.1CRITICAL 9.3
  • TI-2021-17490 mod_proxy SSRF KEVCVSS 3.1CRITICAL 9.0
See all 1955 →

Sources

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