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TI-2022-02440 Aliases CVE-2022-2639GHSA-w6wh-qr7x-h932

Incorrect numeric conversion in kernel

Priority LOW 36CWE-192Published · 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: 27 fixed, 1 without a fix

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

Summary

An integer coercion error was found in the openvswitch kernel module. Given a sufficiently large number of actions, while copying and reserving memory for a new action of a new flow, the reserve_sfa_size() function does not return -EMSGSIZE as expected, potentially leading to an out-of-bounds write access. This flaw allows a local user to crash or potentially escalate their privileges on the system.

Why it matters now

EPSS 0.00921 60th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Partial Red Hat: 17 advisoriesRed Hat: 27 fixed, 1 without a fix

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—kernelkernel 5.18—No fix listedCNA
  • kernel Vendor— Affected kernel 5.18 Fixed in — No fix listed CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*3.18.139 to before 3.19; 4.4.179 to before 4.5; 4.9.169 to before 4.9.312; 4.14.112 to before 4.14.277; 4.19.35 to before 4.19.240; 5.0.8 to before 5.4.191; 5.5 to before 5.10.113; 5.11 to before 5.15.36; 5.16 to before 5.17.5VulnerableLinux
cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*8.0VulnerableRed Hat
cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:*9.0VulnerableRed Hat
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 3.18.139 to before 3.19; 4.4.179 to before 4.5; 4.9.169 to before 4.9.312; 4.14.112 to before 4.14.277; 4.19.35 to before 4.19.240; 5.0.8 to before 5.4.191; 5.5 to before 5.10.113; 5.11 to before 5.15.36; 5.16 to before 5.17.5 Vulnerable ·Linux
  • cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:* Versions 8.0 Vulnerable ·Red Hat
  • cpe:2.3:o:redhat:enterprise_linux:9.0:*:*:*:*:*:*:* Versions 9.0 Vulnerable ·Red Hat

Remediation

Red Hat 17 advisories

  • RHSA-2023:0058 Released 2023-01-10 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) bpftool-4.18.0-147.78.1.el8_1, kernel-4.18.0-147.78.1.el8_1, kernel-abi-whitelists-4.18.0-147.78.1.el8_1 +14
  • RHSA-2023:0059 Released 2023-01-10 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.1) kpatch-patch-4_18_0-147_70_1-1-2.el8_1, kpatch-patch-4_18_0-147_74_1-1-2.el8_1, kpatch-patch-4_18_0-147_76_1-1-1.el8_1 +1
  • RHSA-2022:9082 Released 2022-12-15 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) kpatch-patch-5_14_0-70_13_1-1-5.el9_0, kpatch-patch-5_14_0-70_17_1-1-4.el9_0, kpatch-patch-5_14_0-70_22_1-1-4.el9_0 +2
Show 14 more Red Hat advisories
  • RHSA-2022:8973 Released 2022-12-13 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.9.0) kernel-tools-libs-devel-5.14.0-70.36.1.el9_0
    • Red Hat Enterprise Linux AppStream EUS (v.9.0) kernel-debug-devel-5.14.0-70.36.1.el9_0, kernel-debug-devel-matched-5.14.0-70.36.1.el9_0, kernel-devel-5.14.0-70.36.1.el9_0 +5
    • Red Hat Enterprise Linux BaseOS EUS (v.9.0) bpftool-5.14.0-70.36.1.el9_0, kernel-5.14.0-70.36.1.el9_0, kernel-abi-stablelists-5.14.0-70.36.1.el9_0 +14
  • RHSA-2022:8974 Released 2022-12-13 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time EUS (v.9.0) kernel-rt-5.14.0-70.36.1.rt21.108.el9_0, kernel-rt-core-5.14.0-70.36.1.rt21.108.el9_0, kernel-rt-debug-5.14.0-70.36.1.rt21.108.el9_0 +7
    • Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0) kernel-rt-5.14.0-70.36.1.rt21.108.el9_0, kernel-rt-core-5.14.0-70.36.1.rt21.108.el9_0, kernel-rt-debug-5.14.0-70.36.1.rt21.108.el9_0 +9
  • RHSA-2022:8989 Released 2022-12-13 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) kpatch-patch-4_18_0-193_81_1-1-3.el8_2, kpatch-patch-4_18_0-193_87_1-1-2.el8_2, kpatch-patch-4_18_0-193_90_1-1-2.el8_2 +2
  • RHSA-2022:8940 Released 2022-12-13 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS AUS (v. 8.2) bpftool-4.18.0-193.95.1.el8_2, kernel-4.18.0-193.95.1.el8_2, kernel-abi-whitelists-4.18.0-193.95.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS E4S (v. 8.2) bpftool-4.18.0-193.95.1.el8_2, kernel-4.18.0-193.95.1.el8_2, kernel-abi-whitelists-4.18.0-193.95.1.el8_2 +14
    • Red Hat Enterprise Linux BaseOS TUS (v. 8.2) bpftool-4.18.0-193.95.1.el8_2, kernel-4.18.0-193.95.1.el8_2, kernel-abi-whitelists-4.18.0-193.95.1.el8_2 +14
  • RHSA-2022:8941 Released 2022-12-13 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time TUS (v. 8.2) kernel-rt-4.18.0-193.95.1.rt13.146.el8_2, kernel-rt-core-4.18.0-193.95.1.rt13.146.el8_2, kernel-rt-debug-4.18.0-193.95.1.rt13.146.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2) kernel-rt-4.18.0-193.95.1.rt13.146.el8_2, kernel-rt-core-4.18.0-193.95.1.rt13.146.el8_2, kernel-rt-debug-4.18.0-193.95.1.rt13.146.el8_2 +9
  • RHSA-2022:8831 Released 2022-12-06 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.6) kpatch-patch-4_18_0-372_13_1-1-3.el8_6, kpatch-patch-4_18_0-372_16_1-1-3.el8_6, kpatch-patch-4_18_0-372_19_1-1-2.el8_6 +3
  • RHSA-2022:8809 Released 2022-12-06 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v.8.6) kernel-tools-libs-devel-4.18.0-372.36.1.el8_6
    • Red Hat Enterprise Linux BaseOS EUS (v.8.6) bpftool-4.18.0-372.36.1.el8_6, kernel-4.18.0-372.36.1.el8_6, kernel-abi-stablelists-4.18.0-372.36.1.el8_6 +19
    • Red Hat Virtualization 4 Hypervisor for RHEL 8 kernel-devel-4.18.0-372.36.1.el8_6, perf-4.18.0-372.36.1.el8_6
  • RHSA-2022:8765 Released 2022-12-02 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux NFV EUS (v.8.4) kernel-rt-4.18.0-305.72.1.rt7.144.el8_4, kernel-rt-core-4.18.0-305.72.1.rt7.144.el8_4, kernel-rt-debug-4.18.0-305.72.1.rt7.144.el8_4 +9
    • Red Hat Enterprise Linux RT EUS (v.8.4) kernel-rt-4.18.0-305.72.1.rt7.144.el8_4, kernel-rt-core-4.18.0-305.72.1.rt7.144.el8_4, kernel-rt-debug-4.18.0-305.72.1.rt7.144.el8_4 +7
  • RHSA-2022:8767 Released 2022-12-02 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.4) bpftool-4.18.0-305.72.1.el8_4, kernel-4.18.0-305.72.1.el8_4, kernel-abi-stablelists-4.18.0-305.72.1.el8_4 +19
    • Red Hat Enterprise Linux CRB EUS (v.8.4) kernel-tools-libs-devel-4.18.0-305.72.1.el8_4
  • RHSA-2022:8768 Released 2022-12-02 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v.8.4) kpatch-patch-4_18_0-305_49_1-1-4.el8_4, kpatch-patch-4_18_0-305_57_1-1-3.el8_4, kpatch-patch-4_18_0-305_62_1-1-3.el8_4 +2
  • RHSA-2022:8267 Released 2022-11-15 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-162.6.1.el9_1
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-debug-devel-5.14.0-162.6.1.el9_1, kernel-debug-devel-matched-5.14.0-162.6.1.el9_1, kernel-devel-5.14.0-162.6.1.el9_1 +5
    • Red Hat Enterprise Linux BaseOS (v. 9) bpftool-5.14.0-162.6.1.el9_1, kernel-5.14.0-162.6.1.el9_1, kernel-abi-stablelists-5.14.0-162.6.1.el9_1 +14
  • RHSA-2022:7933 Released 2022-11-15 · Red Hat rating Moderate
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-core-5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-debug-5.14.0-162.6.1.rt21.168.el9_1 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-core-5.14.0-162.6.1.rt21.168.el9_1, kernel-rt-debug-5.14.0-162.6.1.rt21.168.el9_1 +9
  • RHSA-2022:7683 Released 2022-11-08 · Red Hat rating Moderate
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-425.3.1.el8
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-425.3.1.el8, kernel-4.18.0-425.3.1.el8, kernel-abi-stablelists-4.18.0-425.3.1.el8 +19
  • RHSA-2022:7444 Released 2022-11-08 · Red Hat rating Moderate
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-425.3.1.rt7.213.el8, kernel-rt-core-4.18.0-425.3.1.rt7.213.el8, kernel-rt-debug-4.18.0-425.3.1.rt7.213.el8 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-425.3.1.rt7.213.el8, kernel-rt-core-4.18.0-425.3.1.rt7.213.el8, kernel-rt-debug-4.18.0-425.3.1.rt7.213.el8 +9

Vendor assessments

Red Hat

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

ProductStatusPlan or fix
Red Hat Enterprise Linux 7AffectedNo fix planned: Will not fix
Red Hat CodeReady Linux Builder (v. 8)Fixed RHSA-2022:7683
Red Hat CodeReady Linux Builder (v. 9)Fixed RHSA-2022:8267
Red Hat CodeReady Linux Builder EUS (v.8.6)Fixed RHSA-2022:8809
Red Hat CodeReady Linux Builder EUS (v.9.0)Fixed RHSA-2022:8973
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2022:8267
Red Hat Enterprise Linux AppStream EUS (v.9.0)Fixed RHSA-2022:8973
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2022:7683
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2022:8267
Red Hat Enterprise Linux BaseOS AUS (v. 8.2)Fixed RHSA-2022:8940
Red Hat Enterprise Linux BaseOS E4S (v. 8.1)Fixed RHSA-2023:0058, RHSA-2023:0059
Red Hat Enterprise Linux BaseOS E4S (v. 8.2)Fixed RHSA-2022:8940, RHSA-2022:8989
Red Hat Enterprise Linux BaseOS EUS (v.8.4)Fixed RHSA-2022:8767, RHSA-2022:8768
Red Hat Enterprise Linux BaseOS EUS (v.8.6)Fixed RHSA-2022:8809, RHSA-2022:8831
Red Hat Enterprise Linux BaseOS EUS (v.9.0)Fixed RHSA-2022:8973, RHSA-2022:9082
Red Hat Enterprise Linux BaseOS TUS (v. 8.2)Fixed RHSA-2022:8940
Red Hat Enterprise Linux CRB EUS (v.8.4)Fixed RHSA-2022:8767
Red Hat Enterprise Linux NFV EUS (v.8.4)Fixed RHSA-2022:8765
Red Hat Enterprise Linux RT EUS (v.8.4)Fixed RHSA-2022:8765
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2022:7444
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2022:7933
Red Hat Enterprise Linux Real Time EUS (v.9.0)Fixed RHSA-2022:8974
Red Hat Enterprise Linux Real Time TUS (v. 8.2)Fixed RHSA-2022:8941
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2022:7444
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2022:7933
Red Hat Enterprise Linux Real Time for NFV EUS (v.9.0)Fixed RHSA-2022:8974
Red Hat Enterprise Linux Real Time for NFV TUS (v. 8.2)Fixed RHSA-2022:8941
Red Hat Virtualization 4 Hypervisor for RHEL 8Fixed RHSA-2022:8809
Not affected: 1 product
  • Red Hat Enterprise Linux 6

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-2639
  2. 2026-10-03 Alias added: GHSA-w6wh-qr7x-h932

References

Exploit 1

Patch 1

Sources

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