🛡️ UBUNTU-CVE-2022-21123
Description
Incomplete cleanup of multi-core shared buffers for some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access.
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 unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity none, availability none.
Affected software and timeline
Affected software: intel-microcode (fixed in 3.20220510.0ubuntu0.22.04.1), linux (fixed in 5.15.0-39.42), linux-aws (fixed in 5.15.0-1013.17), linux-aws-5.0, linux-aws-5.11, linux-aws-5.13 (fixed in 5.13.0-1031.35~20.04.1), linux-aws-5.3, linux-aws-5.4 (fixed in 5.4.0-1080.87~18.04.1), linux-aws-5.8, linux-aws-fips, linux-aws-hwe (fixed in 4.15.0-1136.147~16.04.1), linux-azure (fixed in 5.15.0-1012.15), linux-azure-4.15 (fixed in 4.15.0-1145.160), linux-azure-5.11, linux-azure-5.13 (fixed in 5.13.0-1031.37~20.04.1), linux-azure-5.15 (fixed in 5.15.0-1014.17~20.04.1), linux-azure-5.3, linux-azure-5.4 (fixed in 5.4.0-1085.90~18.04.1), linux-azure-5.8, linux-azure-edge, linux-azure-fde-5.15, linux-azure-fips, linux-bluefield, linux-dell300x (fixed in 4.15.0-1048.53), linux-fips, linux-gcp (fixed in 5.15.0-1010.15), linux-gcp-4.15 (fixed in 4.15.0-1130.146), linux-gcp-5.11, linux-gcp-5.13 (fixed in 5.13.0-1033.40~20.04.1), linux-gcp-5.15 (fixed in 5.15.0-1013.18~20.04.1), linux-gcp-5.3, linux-gcp-5.4 (fixed in 5.4.0-1080.87~18.04.1), linux-gcp-5.8, linux-gcp-fips, linux-gke (fixed in 5.15.0-1010.13), linux-gke-4.15, linux-gke-5.4 (fixed in 5.4.0-1076.82~18.04.1), linux-gkeop (fixed in 5.4.0-1048.51), linux-gkeop-5.4 (fixed in 5.4.0-1048.51~18.04.1), linux-hwe, linux-hwe-5.11, linux-hwe-5.13 (fixed in 5.13.0-51.58~20.04.1), linux-hwe-5.15 (fixed in 5.15.0-41.44~20.04.1), linux-hwe-5.4 (fixed in 5.4.0-120.136~18.04.1), linux-hwe-5.8, linux-hwe-edge, linux-ibm (fixed in 5.15.0-1009.11), linux-ibm-5.4 (fixed in 5.4.0-1028.32~18.04.1), linux-intel-5.13 (fixed in 5.13.0-1017.19), linux-intel-iot-realtime, linux-intel-iotg (fixed in 5.15.0-1010.14), linux-intel-iotg-5.15 (fixed in 5.15.0-1010.14~20.04.1), linux-iot (fixed in 5.4.0-1004.6), linux-kvm (fixed in 5.15.0-1012.14), linux-lowlatency (fixed in 5.15.0-39.42), linux-lowlatency-hwe-5.15 (fixed in 5.15.0-42.45~20.04.1), linux-lts-xenial (fixed in 4.4.0-229.263~14.04.1), linux-oem, linux-oem-5.10, linux-oem-5.13, linux-oem-5.14 (fixed in 5.14.0-1044.49), linux-oem-5.17 (fixed in 5.17.0-1013.14), linux-oem-5.6, linux-oem-6.0, linux-oracle (fixed in 5.15.0-1011.15), linux-oracle-5.0, linux-oracle-5.11, linux-oracle-5.13 (fixed in 5.13.0-1036.43~20.04.1), linux-oracle-5.15 (fixed in 5.15.0-1013.17~20.04.1), linux-oracle-5.3, linux-oracle-5.4 (fixed in 5.4.0-1078.86~18.04.1), linux-oracle-5.8, linux-raspi-realtime, linux-raspi2, linux-realtime (fixed in 5.15.0-1015.15), linux-riscv and linux-riscv-5.8. Published on 15 June 2022 and last revised on 8 June 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
Details
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| intel-microcode | — | 3.20220510.0ubuntu0.22.04.1 |
| linux | — | 5.15.0-39.42 |
| linux-aws | — | 5.15.0-1013.17 |
| linux-aws-5.0 | — | — |
| linux-aws-5.11 | — | — |
| linux-aws-5.13 | — | 5.13.0-1031.35~20.04.1 |
| linux-aws-5.3 | — | — |
| linux-aws-5.4 | — | 5.4.0-1080.87~18.04.1 |
| linux-aws-5.8 | — | — |
| linux-aws-fips | — | — |
| linux-aws-hwe | — | 4.15.0-1136.147~16.04.1 |
| linux-azure | — | 5.15.0-1012.15 |
| linux-azure-4.15 | — | 4.15.0-1145.160 |
| linux-azure-5.11 | — | — |
| linux-azure-5.13 | — | 5.13.0-1031.37~20.04.1 |
| linux-azure-5.15 | — | 5.15.0-1014.17~20.04.1 |
| linux-azure-5.3 | — | — |
| linux-azure-5.4 | — | 5.4.0-1085.90~18.04.1 |
| linux-azure-5.8 | — | — |
| linux-azure-edge | — | — |
| linux-azure-fde-5.15 | — | — |
| linux-azure-fips | — | — |
| linux-bluefield | — | — |
| linux-dell300x | — | 4.15.0-1048.53 |
| linux-fips | — | — |
| linux-gcp | — | 5.15.0-1010.15 |
| linux-gcp-4.15 | — | 4.15.0-1130.146 |
| linux-gcp-5.11 | — | — |
| linux-gcp-5.13 | — | 5.13.0-1033.40~20.04.1 |
| linux-gcp-5.15 | — | 5.15.0-1013.18~20.04.1 |
| linux-gcp-5.3 | — | — |
| linux-gcp-5.4 | — | 5.4.0-1080.87~18.04.1 |
| linux-gcp-5.8 | — | — |
| linux-gcp-fips | — | — |
| linux-gke | — | 5.15.0-1010.13 |
| linux-gke-4.15 | — | — |
| linux-gke-5.4 | — | 5.4.0-1076.82~18.04.1 |
| linux-gkeop | — | 5.4.0-1048.51 |
| linux-gkeop-5.4 | — | 5.4.0-1048.51~18.04.1 |
| linux-hwe | — | — |
| linux-hwe-5.11 | — | — |
| linux-hwe-5.13 | — | 5.13.0-51.58~20.04.1 |
| linux-hwe-5.15 | — | 5.15.0-41.44~20.04.1 |
| linux-hwe-5.4 | — | 5.4.0-120.136~18.04.1 |
| linux-hwe-5.8 | — | — |
| linux-hwe-edge | — | — |
| linux-ibm | — | 5.15.0-1009.11 |
| linux-ibm-5.4 | — | 5.4.0-1028.32~18.04.1 |
| linux-intel-5.13 | — | 5.13.0-1017.19 |
| linux-intel-iot-realtime | — | — |
| linux-intel-iotg | — | 5.15.0-1010.14 |
| linux-intel-iotg-5.15 | — | 5.15.0-1010.14~20.04.1 |
| linux-iot | — | 5.4.0-1004.6 |
| linux-kvm | — | 5.15.0-1012.14 |
| linux-lowlatency | — | 5.15.0-39.42 |
| linux-lowlatency-hwe-5.15 | — | 5.15.0-42.45~20.04.1 |
| linux-lts-xenial | — | 4.4.0-229.263~14.04.1 |
| linux-oem | — | — |
| linux-oem-5.10 | — | — |
| linux-oem-5.13 | — | — |
| linux-oem-5.14 | — | 5.14.0-1044.49 |
| linux-oem-5.17 | — | 5.17.0-1013.14 |
| linux-oem-5.6 | — | — |
| linux-oem-6.0 | — | — |
| linux-oracle | — | 5.15.0-1011.15 |
| linux-oracle-5.0 | — | — |
| linux-oracle-5.11 | — | — |
| linux-oracle-5.13 | — | 5.13.0-1036.43~20.04.1 |
| linux-oracle-5.15 | — | 5.15.0-1013.17~20.04.1 |
| linux-oracle-5.3 | — | — |
| linux-oracle-5.4 | — | 5.4.0-1078.86~18.04.1 |
| linux-oracle-5.8 | — | — |
| linux-raspi-realtime | — | — |
| linux-raspi2 | — | — |
| linux-realtime | — | 5.15.0-1015.15 |
| linux-riscv | — | — |
| linux-riscv-5.8 | — | — |
References
Similar Threats
- Unknown CLSA-2025-1754381695
- Unknown CLSA-2025-1741215575
- Unknown CLSA-2025-1741216500
- Unknown CLSA-2025-1736502911
- Unknown CLSA-2025-1736503077
Free Vulnerability Check
Is your site affected by UBUNTU-CVE-2022-21123?
BotEraser helps you identify potentially vulnerable plugins and themes by checking your installation against UBUNTU-CVE-2022-21123 and other known CVE records.
Scan My Site Free →No credit card required · Results in minutes
ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.
