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TI-2020-15678 Aliases CVE-2020-25661GHSA-5jpw-97pv-5g28

Type confusion in Red Hat kernel

Priority MEDIUM 42CWE-843Published · Updated

Key facts

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

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-843 and the CVSS impact.

Summary

A Red Hat only CVE-2020-12351 regression issue was found in the way the Linux kernel's Bluetooth implementation handled L2CAP packets with A2MP CID. This flaw allows a remote attacker in an adjacent range to crash the system, causing a denial of service or potentially executing arbitrary code on the system by sending a specially crafted L2CAP packet. The highest threat from this vulnerability is to confidentiality, integrity, as well as system availability.

Why it matters now

EPSS 0.01786 78th 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: Important. 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-2020-25661
  2. 2026-10-03 Alias added: GHSA-5jpw-97pv-5g28

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