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TI-2020-00453 Aliases CVE-2020-0466GHSA-4pj4-7m9h-v9gf

Use after free in Android

Priority LOW 34CWE-416Published · 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-416 and the CVSS impact.

Summary

In do_epoll_ctl and ep_loop_check_proc of eventpoll.c, there is a possible use after free due to a logic error. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.Product: AndroidVersions: Android kernelAndroid ID: A-147802478References: Upstream kernel

Why it matters now

EPSS 0.00278 20th percentileScored 2026-11-07
Fix Fixed Red Hat: 17 advisories

SSVC decision points

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

Affected products

VendorProductAffected versionsFixed inStatusSource
—AndroidAndroid kernel—No fix listedCNA
  • Android Vendor— Affected Android kernel Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:o:google:android:-:*:*:*:*:*:*:*not specified by NVDVulnerableGoogle
  • cpe:2.3:o:google:android:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·Google

Remediation

Red Hat 17 advisories

  • RHSA-2022:1417 Released 2022-04-19 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server (v. 6 ELS) kernel-2.6.32-754.47.1.el6, kernel-abi-whitelists-2.6.32-754.47.1.el6, kernel-debug-2.6.32-754.47.1.el6 +7
    • Red Hat Enterprise Linux Server Optional (v. 6 ELS) python-perf-2.6.32-754.47.1.el6
  • RHSA-2022:1104 Released 2022-03-29 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 7.4) kernel-3.10.0-693.99.1.el7, kernel-abi-whitelists-3.10.0-693.99.1.el7, kernel-debug-3.10.0-693.99.1.el7 +7
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.4) kernel-tools-libs-devel-3.10.0-693.99.1.el7
  • RHSA-2022:0718 Released 2022-03-01 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux Server E4S (v. 7.7) kpatch-patch-3_10_0-1062_46_1-1-7.el7, kpatch-patch-3_10_0-1062_49_1-1-5.el7, kpatch-patch-3_10_0-1062_51_1-1-5.el7 +5
Show 14 more Red Hat advisories
  • RHSA-2022:0712 Released 2022-03-01 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 7.7) bpftool-3.10.0-1062.63.1.el7, kernel-3.10.0-1062.63.1.el7, kernel-abi-whitelists-3.10.0-1062.63.1.el7 +8
    • Red Hat Enterprise Linux Server E4S (v. 7.7) bpftool-3.10.0-1062.63.1.el7, kernel-3.10.0-1062.63.1.el7, kernel-abi-whitelists-3.10.0-1062.63.1.el7 +9
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.63.1.el7
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.7) kernel-debug-devel-3.10.0-1062.63.1.el7, kernel-tools-libs-devel-3.10.0-1062.63.1.el7
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.7) kernel-tools-libs-devel-3.10.0-1062.63.1.el7
    • Red Hat Enterprise Linux Server TUS (v. 7.7) bpftool-3.10.0-1062.63.1.el7, kernel-3.10.0-1062.63.1.el7, kernel-abi-whitelists-3.10.0-1062.63.1.el7 +8
  • RHSA-2022:0620 Released 2022-02-22 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat Enterprise Linux Client (v. 7) bpftool-3.10.0-1160.59.1.el7, kernel-3.10.0-1160.59.1.el7, kernel-abi-whitelists-3.10.0-1160.59.1.el7 +8
    • Red Hat Enterprise Linux Client Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.59.1.el7
    • Red Hat Enterprise Linux ComputeNode Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.59.1.el7
    • Red Hat Enterprise Linux Server (v. 7) bpftool-3.10.0-1160.59.1.el7, kernel-3.10.0-1160.59.1.el7, kernel-abi-whitelists-3.10.0-1160.59.1.el7 +11
    • Red Hat Enterprise Linux Server Optional (v. 7) kernel-debug-devel-3.10.0-1160.59.1.el7, kernel-tools-libs-devel-3.10.0-1160.59.1.el7
    • Red Hat Enterprise Linux Workstation (v. 7) bpftool-3.10.0-1160.59.1.el7, kernel-3.10.0-1160.59.1.el7, kernel-abi-whitelists-3.10.0-1160.59.1.el7 +8
    • Red Hat Enterprise Linux Workstation Optional (v. 7) kernel-tools-libs-devel-3.10.0-1160.59.1.el7
  • RHSA-2022:0622 Released 2022-02-22 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux for Real Time (v. 7) kernel-rt-3.10.0-1160.59.1.rt56.1200.el7, kernel-rt-debug-3.10.0-1160.59.1.rt56.1200.el7, kernel-rt-debug-devel-3.10.0-1160.59.1.rt56.1200.el7 +4
    • Red Hat Enterprise Linux for Real Time for NFV (v. 7) kernel-rt-3.10.0-1160.59.1.rt56.1200.el7, kernel-rt-debug-3.10.0-1160.59.1.rt56.1200.el7, kernel-rt-debug-devel-3.10.0-1160.59.1.rt56.1200.el7 +7
  • RHSA-2022:0592 Released 2022-02-22 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux Server (v. 7) kpatch-patch-3_10_0-1160_21_1-1-9.el7, kpatch-patch-3_10_0-1160_24_1-1-7.el7, kpatch-patch-3_10_0-1160_25_1-1-7.el7 +7
  • RHSA-2022:0531 Released 2022-02-15 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 7.6) bpftool-3.10.0-957.88.1.el7, kernel-3.10.0-957.88.1.el7, kernel-abi-whitelists-3.10.0-957.88.1.el7 +8
    • Red Hat Enterprise Linux Server E4S (v. 7.6) kernel-3.10.0-957.88.1.el7, kernel-abi-whitelists-3.10.0-957.88.1.el7, kernel-bootwrapper-3.10.0-957.88.1.el7 +8
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.6) kernel-tools-libs-devel-3.10.0-957.88.1.el7
    • Red Hat Enterprise Linux Server Optional E4S (v. 7.6) kernel-debug-devel-3.10.0-957.88.1.el7, kernel-tools-libs-devel-3.10.0-957.88.1.el7
    • Red Hat Enterprise Linux Server Optional TUS (v. 7.6) kernel-tools-libs-devel-3.10.0-957.88.1.el7
    • Red Hat Enterprise Linux Server TUS (v. 7.6) bpftool-3.10.0-957.88.1.el7, kernel-3.10.0-957.88.1.el7, kernel-abi-whitelists-3.10.0-957.88.1.el7 +8
  • RHSA-2022:0533 Released 2022-02-15 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux Server E4S (v. 7.6) kpatch-patch-3_10_0-957_70_1-1-7.el7, kpatch-patch-3_10_0-957_72_1-1-5.el7, kpatch-patch-3_10_0-957_76_1-1-5.el7 +4
  • RHSA-2022:0529 Released 2022-02-15 · Red Hat rating Important
    kernel security update
    • Red Hat Enterprise Linux Server AUS (v. 7.3) kernel-3.10.0-514.97.1.el7, kernel-abi-whitelists-3.10.0-514.97.1.el7, kernel-debug-3.10.0-514.97.1.el7 +7
    • Red Hat Enterprise Linux Server Optional AUS (v. 7.3) kernel-tools-libs-devel-3.10.0-514.97.1.el7
  • RHSA-2021:2185 Released 2021-06-02 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v. 8.2) kernel-tools-libs-devel-4.18.0-193.56.1.el8_2
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) bpftool-4.18.0-193.56.1.el8_2, kernel-4.18.0-193.56.1.el8_2, kernel-abi-whitelists-4.18.0-193.56.1.el8_2 +19
  • RHSA-2021:2190 Released 2021-06-01 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time EUS (v. 8.2) kernel-rt-4.18.0-193.56.1.rt13.106.el8_2, kernel-rt-core-4.18.0-193.56.1.rt13.106.el8_2, kernel-rt-debug-4.18.0-193.56.1.rt13.106.el8_2 +7
    • Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2) kernel-rt-4.18.0-193.56.1.rt13.106.el8_2, kernel-rt-core-4.18.0-193.56.1.rt13.106.el8_2, kernel-rt-debug-4.18.0-193.56.1.rt13.106.el8_2 +9
  • RHSA-2021:2167 Released 2021-06-01 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.2) kpatch-patch-4_18_0-193_13_2-1-9.el8_2, kpatch-patch-4_18_0-193_14_3-1-9.el8_2, kpatch-patch-4_18_0-193_19_1-1-9.el8_2 +9
  • RHSA-2021:2106 Released 2021-05-25 · Red Hat rating Important
    kernel security and bug fix update
    • Red Hat CodeReady Linux Builder EUS (v. 8.1) kernel-tools-libs-devel-4.18.0-147.48.1.el8_1
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.1) bpftool-4.18.0-147.48.1.el8_1, kernel-4.18.0-147.48.1.el8_1, kernel-abi-whitelists-4.18.0-147.48.1.el8_1 +19
  • RHSA-2021:2099 Released 2021-05-25 · Red Hat rating Important
    kpatch-patch security update
    • Red Hat Enterprise Linux BaseOS EUS (v. 8.1) kpatch-patch-4_18_0-147_20_1-1-11.el8_1, kpatch-patch-4_18_0-147_24_2-1-9.el8_1, kpatch-patch-4_18_0-147_27_1-1-9.el8_1 +5
  • RHSA-2021:1093 Released 2021-04-06 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat CodeReady Linux Builder (v. 8) kernel-tools-libs-devel-4.18.0-240.22.1.el8_3
    • Red Hat Enterprise Linux BaseOS (v. 8) bpftool-4.18.0-240.22.1.el8_3, kernel-4.18.0-240.22.1.el8_3, kernel-abi-whitelists-4.18.0-240.22.1.el8_3 +19
  • RHSA-2021:1081 Released 2021-04-06 · Red Hat rating Important
    kernel-rt security and bug fix update
    • Red Hat Enterprise Linux Real Time (v. 8) kernel-rt-4.18.0-240.22.1.rt7.77.el8_3, kernel-rt-core-4.18.0-240.22.1.rt7.77.el8_3, kernel-rt-debug-4.18.0-240.22.1.rt7.77.el8_3 +7
    • Red Hat Enterprise Linux Real Time for NFV (v. 8) kernel-rt-4.18.0-240.22.1.rt7.77.el8_3, kernel-rt-core-4.18.0-240.22.1.rt7.77.el8_3, kernel-rt-debug-4.18.0-240.22.1.rt7.77.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-2021:1093
Red Hat CodeReady Linux Builder EUS (v. 8.1)Fixed RHSA-2021:2106
Red Hat CodeReady Linux Builder EUS (v. 8.2)Fixed RHSA-2021:2185
Red Hat Enterprise Linux BaseOS (v. 8)Fixed RHSA-2021:1093
Red Hat Enterprise Linux BaseOS EUS (v. 8.1)Fixed RHSA-2021:2099, RHSA-2021:2106
Red Hat Enterprise Linux BaseOS EUS (v. 8.2)Fixed RHSA-2021:2167, RHSA-2021:2185
Red Hat Enterprise Linux Client (v. 7)Fixed RHSA-2022:0620
Red Hat Enterprise Linux Client Optional (v. 7)Fixed RHSA-2022:0620
Red Hat Enterprise Linux ComputeNode Optional (v. 7)Fixed RHSA-2022:0620
Red Hat Enterprise Linux Real Time (v. 8)Fixed RHSA-2021:1081
Red Hat Enterprise Linux Real Time EUS (v. 8.2)Fixed RHSA-2021:2190
Red Hat Enterprise Linux Real Time for NFV (v. 8)Fixed RHSA-2021:1081
Red Hat Enterprise Linux Real Time for NFV EUS (v. 8.2)Fixed RHSA-2021:2190
Red Hat Enterprise Linux Server (v. 6 ELS)Fixed RHSA-2022:1417
Red Hat Enterprise Linux Server (v. 7)Fixed RHSA-2022:0592, RHSA-2022:0620
Red Hat Enterprise Linux Server AUS (v. 7.3)Fixed RHSA-2022:0529
Red Hat Enterprise Linux Server AUS (v. 7.4)Fixed RHSA-2022:1104
Red Hat Enterprise Linux Server AUS (v. 7.6)Fixed RHSA-2022:0531
Red Hat Enterprise Linux Server AUS (v. 7.7)Fixed RHSA-2022:0712
Red Hat Enterprise Linux Server E4S (v. 7.6)Fixed RHSA-2022:0531, RHSA-2022:0533
Red Hat Enterprise Linux Server E4S (v. 7.7)Fixed RHSA-2022:0712, RHSA-2022:0718
Red Hat Enterprise Linux Server Optional (v. 6 ELS)Fixed RHSA-2022:1417
Red Hat Enterprise Linux Server Optional (v. 7)Fixed RHSA-2022:0620
Red Hat Enterprise Linux Server Optional AUS (v. 7.3)Fixed RHSA-2022:0529
Red Hat Enterprise Linux Server Optional AUS (v. 7.4)Fixed RHSA-2022:1104
Red Hat Enterprise Linux Server Optional AUS (v. 7.6)Fixed RHSA-2022:0531
Red Hat Enterprise Linux Server Optional AUS (v. 7.7)Fixed RHSA-2022:0712
Red Hat Enterprise Linux Server Optional E4S (v. 7.6)Fixed RHSA-2022:0531
Red Hat Enterprise Linux Server Optional E4S (v. 7.7)Fixed RHSA-2022:0712
Red Hat Enterprise Linux Server Optional TUS (v. 7.6)Fixed RHSA-2022:0531
Red Hat Enterprise Linux Server Optional TUS (v. 7.7)Fixed RHSA-2022:0712
Red Hat Enterprise Linux Server TUS (v. 7.6)Fixed RHSA-2022:0531
Red Hat Enterprise Linux Server TUS (v. 7.7)Fixed RHSA-2022:0712
Red Hat Enterprise Linux Workstation (v. 7)Fixed RHSA-2022:0620
Red Hat Enterprise Linux Workstation Optional (v. 7)Fixed RHSA-2022:0620
Red Hat Enterprise Linux for Real Time (v. 7)Fixed RHSA-2022:0622
Red Hat Enterprise Linux for Real Time for NFV (v. 7)Fixed RHSA-2022:0622
Not affected: 3 products
  • Red Hat Enterprise Linux 5
  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 9

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-0466
  2. 2026-10-03 Alias added: GHSA-4pj4-7m9h-v9gf

References

Patch 1

  • TI-2026-42236 Improper authorization in Google Android KEVCVSS 3.1HIGH 8.8
  • TI-2025-30821 Use after free in Google Android KEVCVSS 3.1HIGH 8.8
  • TI-2023-17777 Improper privilege management in Google Android KEVCVSS 3.1HIGH 8.8
  • TI-2025-30872 Integer overflow in Google Android KEVCVSS 3.1HIGH 8.4
  • TI-2024-21766 there is a possible way to bypass due to a logic error in the code. KEVCVSS 3.1HIGH 8.1
  • TI-2025-30849 Missing authentication in Google Android KEVCVSS 3.1HIGH 7.8
See all 8410 →

Sources

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