🛡️ CVE-2022-40982 on Ubuntu — intel-microcode
Description
Information exposure through microarchitectural state after transient execution in certain vector execution units for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
Distribution advisory
This page covers CVE-2022-40982 as tracked by Ubuntu, for the package intel-microcode. The fix is available in version 3.20230808.1; earlier versions remain affected.
How this vulnerability can be exploited
This issue can be reached with local access to the system, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is changed, meaning a successful attack can affect components beyond the vulnerable one. Rated impact: confidentiality high, integrity none, availability none.
CVSS metrics in full
The score comes from this vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- Attack vector: Local — a local account, shell or session on the host is needed.
- Attack complexity: Low — the attack works reliably, with no preparation.
- Privileges required: Low — an ordinary user account is enough.
- User interaction: None — nobody has to be tricked into anything.
- Scope: Changed — a successful attack reaches components beyond the vulnerable one.
- Confidentiality impact: High — total loss, or loss the attacker controls.
- Integrity impact: None.
- Availability impact: None.
Weakness class
UBUNTU-CVE-2022-40982 is classified as CWE-1342: Information Exposure through Microarchitectural State after Transient Execution. The processor does not properly clear microarchitectural state after incorrect microcode assists or speculative execution, resulting in transient execution.
Affected software
UBUNTU-CVE-2022-40982 is recorded against 107 packages.
- intel-microcode (fixed in 3.20230808.1)
- linux (fixed in 5.15.0-82.91)
- linux-allwinner-5.19
- linux-aws (fixed in 5.15.0-1043.48)
- linux-aws-5.0
- linux-aws-5.11
- linux-aws-5.13
- linux-aws-5.15 (fixed in 5.15.0-1043.48~20.04.1)
- linux-aws-5.19
- linux-aws-5.3
- linux-aws-5.4 (fixed in 5.4.0-1108.116~18.04.1)
- linux-aws-5.8
- linux-aws-6.2 (fixed in 6.2.0-1010.10~22.04.1)
- linux-aws-fips
- linux-aws-hwe (fixed in 4.15.0-1161.174~16.04.1)
- linux-azure (fixed in 5.15.0-1045.52)
- linux-azure-4.15 (fixed in 4.15.0-1170.185)
- linux-azure-5.11
- linux-azure-5.13
- linux-azure-5.15 (fixed in 5.15.0-1045.52~20.04.1)
- linux-azure-5.19
- linux-azure-5.3
- linux-azure-5.4 (fixed in 5.4.0-1115.122~18.04.1)
- linux-azure-5.8
Show the remaining 83 packages
- linux-azure-6.2
- linux-azure-edge
- linux-azure-fde (fixed in 5.15.0-1045.52.1)
- linux-azure-fde-5.15 (fixed in 5.15.0-1114.123~20.04.1)
- linux-azure-fde-5.19
- linux-azure-fde-6.2
- linux-azure-fips
- linux-bluefield
- linux-fips
- linux-gcp (fixed in 5.15.0-1040.48)
- linux-gcp-4.15 (fixed in 4.15.0-1155.172)
- linux-gcp-5.11
- linux-gcp-5.13
- linux-gcp-5.15 (fixed in 5.15.0-1040.48~20.04.1)
- linux-gcp-5.19
- linux-gcp-5.3
- linux-gcp-5.4 (fixed in 5.4.0-1111.120~18.04.1)
- linux-gcp-5.8
- linux-gcp-6.2
- linux-gcp-fips
- linux-gke (fixed in 5.15.0-1040.45)
- linux-gke-4.15
- linux-gke-5.15
- linux-gke-5.4
- linux-gkeop (fixed in 5.15.0-1026.31)
- linux-gkeop-5.15 (fixed in 5.15.0-1026.31~20.04.1)
- linux-gkeop-5.4
- linux-hwe
- linux-hwe-5.11
- linux-hwe-5.13
- linux-hwe-5.15 (fixed in 5.15.0-82.91~20.04.1)
- linux-hwe-5.19
- linux-hwe-5.4 (fixed in 5.4.0-159.176~18.04.1)
- linux-hwe-5.8
- linux-hwe-6.2 (fixed in 6.2.0-31.31~22.04.1)
- linux-hwe-edge
- linux-ibm (fixed in 5.15.0-1036.39)
- linux-ibm-5.15 (fixed in 5.15.0-1036.39~20.04.1)
- linux-ibm-5.4 (fixed in 5.4.0-1056.61~18.04.1)
- linux-intel-5.13
- linux-intel-iot-realtime (fixed in 5.15.0-1037.39)
- linux-intel-iotg (fixed in 5.15.0-1038.43)
- linux-intel-iotg-5.15 (fixed in 5.15.0-1038.43~20.04.1)
- linux-iot (fixed in 5.4.0-1021.22)
- linux-kvm (fixed in 5.15.0-1040.45)
- linux-lowlatency (fixed in 5.15.0-82.91)
- linux-lowlatency-hwe-5.15 (fixed in 5.15.0-82.91~20.04.1)
- linux-lowlatency-hwe-5.19
- linux-lowlatency-hwe-6.2 (fixed in 6.2.0-1011.11~22.04.1)
- linux-lts-xenial (fixed in 4.4.0-245.279~14.04.1)
- linux-nvidia (fixed in 5.15.0-1031.31)
- linux-nvidia-6.2
- linux-nvidia-tegra (fixed in 5.15.0-1017.17)
- linux-nvidia-tegra-5.15 (fixed in 5.15.0-1017.17~20.04.1)
- linux-nvidia-tegra-igx (fixed in 5.15.0-1004.4)
- linux-oem
- linux-oem-5.10
- linux-oem-5.13
- linux-oem-5.14
- linux-oem-5.17
- linux-oem-5.6
- linux-oem-6.0
- linux-oem-6.1 (fixed in 6.1.0-1020.20)
- linux-oracle (fixed in 5.15.0-1041.47)
- linux-oracle-5.0
- linux-oracle-5.11
- linux-oracle-5.13
- linux-oracle-5.15 (fixed in 5.15.0-1041.47~20.04.1)
- linux-oracle-5.3
- linux-oracle-5.4 (fixed in 5.4.0-1107.116~18.04.1)
- linux-oracle-5.8
- linux-raspi (fixed in 5.15.0-1036.39)
- linux-raspi-5.4 (fixed in 5.4.0-1092.103~18.04.1)
- linux-raspi-realtime
- linux-raspi2
- linux-realtime (fixed in 5.15.0-1044.49)
- linux-riscv
- linux-riscv-5.11
- linux-riscv-5.15 (fixed in 5.15.0-1039.43~20.04.2)
- linux-riscv-5.19
- linux-riscv-5.8
- linux-starfive-5.19
- linux-xilinx-zynqmp (fixed in 5.15.0-1025.29)
Timeline and source
Published on 8 August 2023 and last revised on 18 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
References
ubuntu.com (Report)
www.intel.com (Report)
www.intel.com (Report)
www.intel.com (Report)
downfall.page (Report)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
ubuntu.com (Advisory)
www.cve.org (Report)
Other advisories for this package
intel-microcode has other advisories on record. If you are patching this one, these are worth checking on the same host:
- DEBIAN-CVE-2025-31936 (published 11 Aug 2026)
- DEBIAN-CVE-2026-20713 (published 11 Aug 2026)
- DEBIAN-CVE-2026-20707 (published 11 Aug 2026)
- DEBIAN-CVE-2026-20917 (published 11 Aug 2026)
- DEBIAN-CVE-2025-35973 (published 11 Aug 2026)
- DEBIAN-CVE-2026-20901 (published 11 Aug 2026)
- DEBIAN-CVE-2026-20760 (published 11 Aug 2026)
- DEBIAN-CVE-2025-31938 (published 11 Aug 2026)
Same weakness in other software
These advisories are the same class of weakness (CWE-1342: Information Exposure through Microarchitectural State after Transient Execution) in other software:
- CVE-2023-28746 (6.5 Medium, published 14 Mar 2024)
- CVE-2022-40982 (6.5 Medium, published 11 Aug 2023)
CVE-2022-40982 on other distributions
Each distribution ships its own build and its own fixed version. Pick the one you run:
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| intel-microcode | — | 3.20230808.1 |
| linux | — | 5.15.0-82.91 |
| linux-allwinner-5.19 | — | — |
| linux-aws | — | 5.15.0-1043.48 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | — |
| linux-aws-5.15 | — | 5.15.0-1043.48~20.04.1 |
| linux-aws-5.19 | — | — |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1108.116~18.04.1 |
| linux-aws-5.8 | — | — |
| linux-aws-6.2 | — | 6.2.0-1010.10~22.04.1 |
| linux-aws-fips | — | — |
| linux-aws-hwe | — | 4.15.0-1161.174~16.04.1 |
| linux-azure | — | 5.15.0-1045.52 |
| linux-azure-4.15 | — | 4.15.0-1170.185 |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | — |
| linux-azure-5.15 | — | 5.15.0-1045.52~20.04.1 |
| linux-azure-5.19 | — | — |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1115.122~18.04.1 |
| linux-azure-5.8 | — | — |
| linux-azure-6.2 | — | — |
| linux-azure-edge | — | — |
| linux-azure-fde | — | 5.15.0-1045.52.1 |
| linux-azure-fde-5.15 | — | 5.15.0-1114.123~20.04.1 |
| linux-azure-fde-5.19 | — | — |
| linux-azure-fde-6.2 | — | — |
| linux-azure-fips | — | — |
| linux-bluefield | — | — |
| linux-fips | — | — |
| linux-gcp | — | 5.15.0-1040.48 |
| linux-gcp-4.15 | — | 4.15.0-1155.172 |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | — |
| linux-gcp-5.15 | — | 5.15.0-1040.48~20.04.1 |
| linux-gcp-5.19 | — | — |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1111.120~18.04.1 |
| linux-gcp-5.8 | — | — |
| linux-gcp-6.2 | — | — |
| linux-gcp-fips | — | — |
| linux-gke | — | 5.15.0-1040.45 |
| linux-gke-4.15 | — | — |
| linux-gke-5.15 | — | — |
| linux-gke-5.4 | — | — |
| linux-gkeop | — | 5.15.0-1026.31 |
| linux-gkeop-5.15 | — | 5.15.0-1026.31~20.04.1 |
| linux-gkeop-5.4 | — | — |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | — |
| linux-hwe-5.15 | — | 5.15.0-82.91~20.04.1 |
| linux-hwe-5.19 | — | — |
| linux-hwe-5.4 | — | 5.4.0-159.176~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-6.2 | — | 6.2.0-31.31~22.04.1 |
| linux-hwe-edge | — | — |
| linux-ibm | — | 5.15.0-1036.39 |
| linux-ibm-5.15 | — | 5.15.0-1036.39~20.04.1 |
| linux-ibm-5.4 | — | 5.4.0-1056.61~18.04.1 |
| linux-intel-5.13 | — | — |
| linux-intel-iot-realtime | — | 5.15.0-1037.39 |
| linux-intel-iotg | — | 5.15.0-1038.43 |
| linux-intel-iotg-5.15 | — | 5.15.0-1038.43~20.04.1 |
| linux-iot | — | 5.4.0-1021.22 |
| linux-kvm | — | 5.15.0-1040.45 |
| linux-lowlatency | — | 5.15.0-82.91 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-82.91~20.04.1 |
| linux-lowlatency-hwe-5.19 | — | — |
| linux-lowlatency-hwe-6.2 | — | 6.2.0-1011.11~22.04.1 |
| linux-lts-xenial | — | 4.4.0-245.279~14.04.1 |
| linux-nvidia | — | 5.15.0-1031.31 |
| linux-nvidia-6.2 | — | — |
| linux-nvidia-tegra | — | 5.15.0-1017.17 |
| linux-nvidia-tegra-5.15 | — | 5.15.0-1017.17~20.04.1 |
| linux-nvidia-tegra-igx | — | 5.15.0-1004.4 |
| linux-oem | — | — |
| linux-oem-5.10 | — | — |
| linux-oem-5.13 | — | — |
| linux-oem-5.14 | — | — |
| linux-oem-5.17 | — | — |
| linux-oem-5.6 | — | — |
| linux-oem-6.0 | — | — |
| linux-oem-6.1 | — | 6.1.0-1020.20 |
| linux-oracle | — | 5.15.0-1041.47 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | — |
| linux-oracle-5.15 | — | 5.15.0-1041.47~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1107.116~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-raspi | — | 5.15.0-1036.39 |
| linux-raspi-5.4 | — | 5.4.0-1092.103~18.04.1 |
| linux-raspi-realtime | — | — |
| linux-raspi2 | — | — |
| linux-realtime | — | 5.15.0-1044.49 |
| linux-riscv | — | — |
| linux-riscv-5.11 | — | — |
| linux-riscv-5.15 | — | 5.15.0-1039.43~20.04.2 |
| linux-riscv-5.19 | — | — |
| linux-riscv-5.8 | — | — |
| linux-starfive-5.19 | — | — |
| linux-xilinx-zynqmp | — | 5.15.0-1025.29 |
References
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