CVE-2023-21102
In __efi_rt_asm_wrapper of efi-rt-wrapper.S, there is a possible bypass of shadow stack protection due to a logic error in the code. This could lead to local escalation of privilege with no additional
02 Description
In __efi_rt_asm_wrapper of efi-rt-wrapper.S, there is a possible bypass of shadow stack protection due to a logic error in the code. This could lead to local escalation of privilege with no additional
03 Exploitation and scoring
- Exploitation
- Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
- SSVC decision
- ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
- AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
- Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
- EPSS probability
- 0.17% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 7.1% of scored records. A rank, not a probability.
- NVD base score
- 7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2023-05-15 00:00Z3 YR AGO
- Last updated
- 2025-01-24 18:05Z1 YR AGO
- Reserved
- 2022-11-03
- Assigning CNA
- google_android
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.8)
- CNA CVSS vector
- CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weaknesses
- Data version
- 5.1
- Document digest
- 492366824261a3a8ff047edc1fdb10acb83b1df4d34a0168c94591f2c4239e77
05 Affected products
06 References
- source.android.comhttps://source.android.com/security/bulletin/2023-05-01
07 Fixed in
AlmaLinux 9
- bpftool Fixed in 7.0.0-284.30.1.el9_2
- kernel Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-devel Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-devel-matched Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-modules Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-modules-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-modules-extra Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-devel Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-devel-matched Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-modules Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-modules-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-modules-extra Fixed in 5.14.0-284.30.1.el9_2
- kernel-abi-stablelists Fixed in 5.14.0-284.30.1.el9_2
- kernel-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-devel Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-devel-matched Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-modules Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-modules-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-modules-extra Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-uki-virt Fixed in 5.14.0-284.30.1.el9_2
- kernel-devel Fixed in 5.14.0-284.30.1.el9_2
- kernel-devel-matched Fixed in 5.14.0-284.30.1.el9_2
- kernel-modules Fixed in 5.14.0-284.30.1.el9_2
- kernel-modules-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-modules-extra Fixed in 5.14.0-284.30.1.el9_2
- kernel-rt Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-core Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-core Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-devel Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-kvm Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-modules Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-modules-core Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-modules-extra Fixed in 5.14.0-284.30.1.rt14.315.el9_2
19 further packages in AlmaLinux 9 not shown (first 40 listed).
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- bpftool Fixed in 7.0.0-284.30.1.el9_2
- kernel Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-devel Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-devel-matched Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-modules Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-modules-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-debug-modules-extra Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-devel Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-devel-matched Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-modules Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-modules-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-64k-modules-extra Fixed in 5.14.0-284.30.1.el9_2
- kernel-abi-stablelists Fixed in 5.14.0-284.30.1.el9_2
- kernel-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-devel Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-devel-matched Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-modules Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-modules-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-modules-extra Fixed in 5.14.0-284.30.1.el9_2
- kernel-debug-uki-virt Fixed in 5.14.0-284.30.1.el9_2
- kernel-devel Fixed in 5.14.0-284.30.1.el9_2
- kernel-devel-matched Fixed in 5.14.0-284.30.1.el9_2
- kernel-modules Fixed in 5.14.0-284.30.1.el9_2
- kernel-modules-core Fixed in 5.14.0-284.30.1.el9_2
- kernel-modules-extra Fixed in 5.14.0-284.30.1.el9_2
- kernel-rt Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-core Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-core Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-devel Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-kvm Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-modules Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-modules-core Fixed in 5.14.0-284.30.1.rt14.315.el9_2
- kernel-rt-debug-modules-extra Fixed in 5.14.0-284.30.1.rt14.315.el9_2
19 further packages in CloudLinux 9 not shown (first 40 listed).
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- linux Fixed in 6.1.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- linux Fixed in 6.1.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- linux Fixed in 6.1.8-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- linux-hwe-edge No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- linux-aws-5.0 No fix yet
- linux-aws-5.3 No fix yet
- linux-azure No fix yet
- linux-azure-5.3 No fix yet
- linux-azure-edge No fix yet
- linux-gcp No fix yet
- linux-gcp-5.3 No fix yet
- linux-gke-4.15 No fix yet
- linux-gke-5.4 No fix yet
- linux-gkeop-5.4 No fix yet
- linux-hwe No fix yet
- linux-oem No fix yet
- linux-oracle-5.0 No fix yet
- linux-oracle-5.3 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- linux-aws-5.11 No fix yet
- linux-aws-5.13 No fix yet
- linux-aws-5.15 Fixed in 5.15.0-1034.38~20.04.1
- linux-aws-5.8 No fix yet
- linux-azure-5.11 No fix yet
- linux-azure-5.13 No fix yet
- linux-azure-5.15 Fixed in 5.15.0-1036.43~20.04.1
- linux-azure-5.8 No fix yet
- linux-azure-fde-5.15 Fixed in 5.15.0-1036.43~20.04.1.1
- linux-gcp-5.11 No fix yet
- linux-gcp-5.13 No fix yet
- linux-gcp-5.15 Fixed in 5.15.0-1032.40~20.04.1
- linux-gcp-5.8 No fix yet
- linux-gke-5.15 Fixed in 5.15.0-1031.36~20.04.1
- linux-gkeop-5.15 Fixed in 5.15.0-1018.23~20.04.1
- linux-hwe-5.11 No fix yet
- linux-hwe-5.13 No fix yet
- linux-hwe-5.15 Fixed in 5.15.0-70.77~20.04.1
- linux-hwe-5.8 No fix yet
- linux-intel-5.13 No fix yet
- linux-intel-iotg-5.15 Fixed in 5.15.0-1030.35~20.04.1
- linux-lowlatency-hwe-5.15 Fixed in 5.15.0-70.77~20.04.1
- linux-oem-5.10 No fix yet
- linux-oem-5.13 No fix yet
- linux-oem-5.14 No fix yet
- linux-oem-5.6 No fix yet
- linux-oracle-5.11 No fix yet
- linux-oracle-5.13 No fix yet
- linux-oracle-5.15 Fixed in 5.15.0-1033.39~20.04.1
- linux-oracle-5.8 No fix yet
- linux-raspi2 No fix yet
- linux-riscv No fix yet
- linux-riscv-5.11 No fix yet
- linux-riscv-5.15 Fixed in 5.15.0-1031.35~20.04.1
- linux-riscv-5.8 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- linux Fixed in 5.15.0-70.77
- linux-aws Fixed in 5.15.0-1034.38
- linux-azure Fixed in 5.15.0-1036.43
- linux-azure-5.19 Fixed in 5.19.0-1026.29~22.04.1
- linux-azure-fde Fixed in 5.15.0-1036.43.1
- linux-gcp Fixed in 5.15.0-1032.40
- linux-gke Fixed in 5.15.0-1031.36
- linux-gkeop Fixed in 5.15.0-1018.23
- linux-hwe-5.19 Fixed in 5.19.0-42.43~22.04.1
- linux-ibm Fixed in 5.15.0-1028.31
- linux-intel-iotg Fixed in 5.15.0-1028.33
- linux-kvm Fixed in 5.15.0-1031.36
- linux-lowlatency Fixed in 5.15.0-70.77
- linux-lowlatency-hwe-5.19 Fixed in 5.19.0-1024.25~22.04.1
- linux-nvidia Fixed in 5.15.0-1023.23
- linux-oem-5.17 No fix yet
- linux-oem-6.0 No fix yet
- linux-oem-6.1 Fixed in 6.1.0-1008.8
- linux-oracle Fixed in 5.15.0-1033.39
- linux-raspi Fixed in 5.15.0-1027.29
- linux-realtime No fix yet
- linux-riscv No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- linux-raspi-realtime No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Nvidia-BlueField 22.04 LTS
- linux-bluefield Fixed in 5.15.0-1015.17
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro Realtime 22.04 LTS
- linux-intel-iot-realtime Fixed in 5.15.0-1024.29Available with Ubuntu Pro: https://ubuntu.com/pro
- linux-realtime Fixed in 5.15.0-1036.39Available with Ubuntu Pro: https://ubuntu.com/pro
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.