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TI-2022-10646 Aliases CVE-2022-27666GHSA-5h7v-72v6-2r5w

A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c…

Priority MEDIUM 42CWE-787Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
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-787 and the CVSS impact.

Summary

A heap buffer overflow flaw was found in IPsec ESP transformation code in net/ipv4/esp4.c and net/ipv6/esp6.c. This flaw allows a local attacker with a normal user privilege to overwrite kernel heap objects and may cause a local privilege escalation threat.

Why it matters now

EPSS 0.05524 92nd percentileScored 2026-11-07
Fix Fixed Red Hat: 15 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 31

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*4.11 to before 4.14.274; 4.15 to before 4.19.237; 4.20 to before 5.4.188; 5.5 to before 5.10.108; 5.11 to before 5.15.29; 5.16 to before 5.16.15VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:*5.17 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:*5.17 rc2VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:*5.17 rc3VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:*5.17 rc4VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc5:*:*:*:*:*:*5.17 rc5VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc6:*:*:*:*:*:*5.17 rc6VulnerableLinux
cpe:2.3:o:linux:linux_kernel:5.17:rc7:*:*:*:*:*:*5.17 rc7VulnerableLinux
cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*34VulnerableFedoraproject
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*35VulnerableFedoraproject
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 4.11 to before 4.14.274; 4.15 to before 4.19.237; 4.20 to before 5.4.188; 5.5 to before 5.10.108; 5.11 to before 5.15.29; 5.16 to before 5.16.15 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc1:*:*:*:*:*:* Versions 5.17 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc2:*:*:*:*:*:* Versions 5.17 rc2 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc3:*:*:*:*:*:* Versions 5.17 rc3 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc4:*:*:*:*:*:* Versions 5.17 rc4 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc5:*:*:*:*:*:* Versions 5.17 rc5 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc6:*:*:*:*:*:* Versions 5.17 rc6 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:5.17:rc7:*:*:*:*:*:* Versions 5.17 rc7 Vulnerable ·Linux
  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:* Versions 34 Vulnerable ·Fedoraproject
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:* Versions 35 Vulnerable ·Fedoraproject
Show 21 more CPE
CPEVersionsRoleVendor
cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*4.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*not specified by NVDVulnerableNetApp
cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:*not specified by NVDRunning onNetApp
cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*9.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*10.0VulnerableDebian
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*11.0VulnerableDebian
  • cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:* Versions 4.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h300e_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h300e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h500e_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h500e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h700e_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h700e:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
  • cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:* Versions 11.0 Vulnerable ·Debian

Remediation

Red Hat 15 advisories

  • RHSA-2022:5678 Released 2022-07-21 · Red Hat rating Important
    Red Hat Virtualization security, bug fix, and enhancement update [ovirt-4.5.1]
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 redhat-virtualization-host-4.5.1-202207170705_8.6, redhat-virtualization-host-image-update-4.5.1-202207170705_8.6
  • RHSA-2022:5476 Released 2022-07-01 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) kpatch-patch-4_18_0-193_60_2-1-7.el8_2, kpatch-patch-4_18_0-193_64_1-1-6.el8_2, kpatch-patch-4_18_0-193_65_2-1-5.el8_2 +7
  • RHSA-2022:5249 Released 2022-07-01 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-70.17.1.el9_0
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-debug-devel-5.14.0-70.17.1.el9_0, kernel-debug-devel-matched-5.14.0-70.17.1.el9_0, kernel-devel-5.14.0-70.17.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-5.14.0-70.17.1.el9_0, kernel-5.14.0-70.17.1.el9_0, kernel-abi-stablelists-5.14.0-70.17.1.el9_0 +14
Show 12 more Red Hat advisories
  • RHSA-2022:5316 Released 2022-06-30 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-372.13.1.el8_6, kernel-4.18.0-372.13.1.el8_6, kernel-abi-stablelists-4.18.0-372.13.1.el8_6 +19
    • Red Hat Enterprise Linux CRB (v. 8) kernel-tools-libs-devel-4.18.0-372.13.1.el8_6
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.13.1.el8_6, perf-4.18.0-372.13.1.el8_6
  • RHSA-2022:5344 Released 2022-06-28 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux NFV (v. 8) kernel-rt-4.18.0-372.13.1.rt7.170.el8_6, kernel-rt-core-4.18.0-372.13.1.rt7.170.el8_6, kernel-rt-debug-4.18.0-372.13.1.rt7.170.el8_6 +9
    • Red Hat Enterprise Linux RT (v. 8) kernel-rt-4.18.0-372.13.1.rt7.170.el8_6, kernel-rt-core-4.18.0-372.13.1.rt7.170.el8_6, kernel-rt-debug-4.18.0-372.13.1.rt7.170.el8_6 +7
  • RHSA-2022:5220 Released 2022-06-28 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v. 8.2) kernel-tools-libs-devel-4.18.0-193.87.1.el8_2
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) bpftool-4.18.0-193.87.1.el8_2, kernel-4.18.0-193.87.1.el8_2, kernel-abi-whitelists-4.18.0-193.87.1.el8_2 +19
  • RHSA-2022:5219 Released 2022-06-28 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS (v. 8) kpatch-patch-4_18_0-372_9_1-1-1.el8
  • RHSA-2022:5267 Released 2022-06-28 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-core-5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-debug-5.14.0-70.17.1.rt21.89.el9_0 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-core-5.14.0-70.17.1.rt21.89.el9_0, kernel-rt-debug-5.14.0-70.17.1.rt21.89.el9_0 +9
  • RHSA-2022:5224 Released 2022-06-28 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time EUS (v. 8.2) kernel-rt-4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-core-4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-debug-4.18.0-193.87.1.rt13.137.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2) kernel-rt-4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-core-4.18.0-193.87.1.rt13.137.el8_2, kernel-rt-debug-4.18.0-193.87.1.rt13.137.el8_2 +9
  • RHSA-2022:5214 Released 2022-06-28 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS (v. 9) kpatch-patch-5_14_0-70_13_1-1-1.el9_0
  • RHSA-2022:4942 Released 2022-06-08 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) kpatch-patch-4_18_0-147_51_1-1-8.el8_1, kpatch-patch-4_18_0-147_51_2-1-7.el8_1, kpatch-patch-4_18_0-147_52_1-1-6.el8_1 +7
  • RHSA-2022:4924 Released 2022-06-07 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) bpftool-4.18.0-147.67.1.el8_1, kernel-4.18.0-147.67.1.el8_1, kernel-abi-whitelists-4.18.0-147.67.1.el8_1 +14
  • RHSA-2022:4835 Released 2022-05-31 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux NFV EUS (v.8.4) kernel-rt-4.18.0-305.49.1.rt7.121.el8_4, kernel-rt-core-4.18.0-305.49.1.rt7.121.el8_4, kernel-rt-debug-4.18.0-305.49.1.rt7.121.el8_4 +9
    • Red Hat Enterprise Linux RT EUS (v.8.4) kernel-rt-4.18.0-305.49.1.rt7.121.el8_4, kernel-rt-core-4.18.0-305.49.1.rt7.121.el8_4, kernel-rt-debug-4.18.0-305.49.1.rt7.121.el8_4 +7
  • RHSA-2022:4829 Released 2022-05-31 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.4) bpftool-4.18.0-305.49.1.el8_4, kernel-4.18.0-305.49.1.el8_4, kernel-abi-stablelists-4.18.0-305.49.1.el8_4 +19
    • Red Hat Enterprise Linux CRB EUS (v.8.4) kernel-tools-libs-devel-4.18.0-305.49.1.el8_4
  • RHSA-2022:4809 Released 2022-05-31 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.4) kpatch-patch-4_18_0-305_10_2-1-10.el8_4, kpatch-patch-4_18_0-305_12_1-1-9.el8_4, kpatch-patch-4_18_0-305_17_1-1-8.el8_4 +10

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2022:5249
Red Hat CodeReady Linux Builder EUS (v. 8.2)Fixed RHSA-2022:5220
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:5249
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2022:5219, RHSA-2022:5316
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2022:5214, RHSA-2022:5249
Red Hat Enterprise Linux BaseOS E4S (v. 8.1)Fixed RHSA-2022:4924, RHSA-2022:4942
Red Hat Enterprise Linux BaseOS EUS (v. 8.2)Fixed RHSA-2022:5220, RHSA-2022:5476
Red Hat Enterprise Linux BaseOS EUS (v.8.4)Fixed RHSA-2022:4809, RHSA-2022:4829
Red Hat Enterprise Linux CRB (v. 8)Fixed RHSA-2022:5316
Red Hat Enterprise Linux CRB EUS (v.8.4)Fixed RHSA-2022:4829
Red Hat Enterprise Linux NFV (v. 8)Fixed RHSA-2022:5344
Red Hat Enterprise Linux NFV EUS (v.8.4)Fixed RHSA-2022:4835
Red Hat Enterprise Linux RT (v. 8)Fixed RHSA-2022:5344
Red Hat Enterprise Linux RT EUS (v.8.4)Fixed RHSA-2022:4835
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2022:5267
Red Hat Enterprise Linux Real Time EUS (v. 8.2)Fixed RHSA-2022:5224
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2022:5267
Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2)Fixed RHSA-2022:5224
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2022:5316, RHSA-2022:5678
Not affected: 3 products
  • RHEL 8-based RHEV-H for RHEV 4 (build requirements)
  • Red Hat Enterprise Linux 6
  • Red Hat Enterprise Linux 7

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-27666
  2. 2026-10-03 Alias added: GHSA-5h7v-72v6-2r5w

References

Patch 2

Advisory 3

Sources

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