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TI-2020-08664 Aliases CVE-2020-10769GHSA-ccvh-qcqm-vp82

Out-of-bounds read in Kernel

Priority LOW 25CWE-125Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Partial Red Hat: 11 fixed, 3 without a fix

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and Red Hat. Impact type from CWE-125 and the CVSS impact.

Summary

A buffer over-read flaw was found in RH kernel versions before 5.0 in crypto_authenc_extractkeys in crypto/authenc.c in the IPsec Cryptographic algorithm's module, authenc. When a payload longer than 4 bytes, and is not following 4-byte alignment boundary guidelines, it causes a buffer over-read threat, leading to a system crash. This flaw allows a local attacker with user privileges to cause a denial of service.

Why it matters now

EPSS 0.0051 43rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Kernel: 5.0Red Hat: 3 advisoriesRed Hat: 11 fixed, 3 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—Kernelbefore 5.05.0Patch availableCNA
  • Kernel Vendor— Affected before 5.0 Fixed in 5.0 Patch available CNA

CPE configurations NVD · 2

CPEVersionsRoleVendor
cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:*7.0VulnerableRed Hat
cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:*15.1VulnerableopenSUSE
  • cpe:2.3:o:redhat:enterprise_linux:7.0:*:*:*:*:*:*:* Versions 7.0 Vulnerable ·Red Hat
  • cpe:2.3:o:opensuse:leap:15.1:*:*:*:*:*:*:* Versions 15.1 Vulnerable ·openSUSE

Remediation

  • Fix · CNA Kernel Fixed in 5.0

Red Hat 3 advisories

  • RHSA-2020:5437 Released 2020-12-15 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1160.11.1.el7, kernel-3.10.0-1160.11.1.el7, kernel-abi-whitelists-3.10.0-1160.11.1.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.11.1.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.11.1.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1160.11.1.el7, kernel-3.10.0-1160.11.1.el7, kernel-abi-whitelists-3.10.0-1160.11.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1160.11.1.el7, kernel-tools-libs-devel-3.10.0-1160.11.1.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1160.11.1.el7, kernel-3.10.0-1160.11.1.el7, kernel-abi-whitelists-3.10.0-1160.11.1.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.11.1.el7
  • RHSA-2020:5441 Released 2020-12-15 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1160.11.1.rt56.1145.el7, kernel-rt-debug-3.10.0-1160.11.1.rt56.1145.el7, kernel-rt-debug-devel-3.10.0-1160.11.1.rt56.1145.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1160.11.1.rt56.1145.el7, kernel-rt-debug-3.10.0-1160.11.1.rt56.1145.el7, kernel-rt-debug-devel-3.10.0-1160.11.1.rt56.1145.el7 +7
  • RHSA-2020:3545 Released 2020-08-25 · Red Hat rating Moderate
    kernel-alt security and bug fix update
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7) kernel-4.14.0-115.29.1.el7a, kernel-abi-whitelists-4.14.0-115.29.1.el7a, kernel-alt-4.14.0-115.29.1.el7a +9
    • Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7) kernel-debug-devel-4.14.0-115.29.1.el7a, kernel-tools-libs-devel-4.14.0-115.29.1.el7a

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 5AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise MRG 2AffectedNo fix planned: Will not fix
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2020:5437
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2020:5437
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2020:5437
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2020:5437
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2020:5437
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2020:5437
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2020:5437
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server (v. 7)Fixed RHSA-2020:3545
Red Hat Enterprise Linux for ARM and IBM Power LE (POWER9) Server Optional (v. 7)Fixed RHSA-2020:3545
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2020:5441
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2020:5441
Not affected: 1 product
  • Red Hat Enterprise Linux 8

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-10769
  2. 2026-10-03 Alias added: GHSA-ccvh-qcqm-vp82

References

Exploit 1

Advisory 1

Other 2

Sources

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