In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds read and panic (via a modified lm_bufcount field) due to the lack of validation for specific fields of packets sent by a client
Published Jan 27, 2020
7.5
HIGHCVSS 3.1
EPSS 2.18%
Description
In the Lustre file system before 2.12.3, the ptlrpc module has an out-of-bounds read and panic (via a modified lm_bufcount field) due to the lack of validation for specific fields of packets sent by a client. This is caused by interaction between sptlrpc_svc_unwrap_request and lustre_msg_hdr_size_v2.
Affected products
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:N/A:C
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 3, 2026.
Score over time
2021–2026- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
Table of values (13 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 3, 2026 | 2.18% (0.02183) | 81.74th | v5 (v2026.06.15) |
| Sep 20, 2026 | 1.90% (0.01896) | 78.70th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.36% (0.00360) | 72.47th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.36% (0.00360) | 71.41th | v3 (v2023.03.01) |
| Nov 15, 2023 | 0.36% (0.00360) | 69.12th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.25% (0.00253) | 61.31th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 7.18% (0.07176) | 80.33th | v2 (v2022.01.01) |
| Feb 3, 2022 | 4.50% (0.04504) | 76.47th | v1 |
| Jan 6, 2022 | 4.50% (0.04504) | 76.26th | v1 |
| Jan 5, 2022 | 1.04% (0.01040) | 65.70th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (4)
- http://lustre.org/ x_refsource_MISCProductVendor Advisory
- http://wiki.lustre.org/Lustre_2.12.3_Changelog x_refsource_MISCRelease NotesVendor Advisory
- https://jira.whamcloud.com/browse/LU-12590 x_refsource_MISCExploitThird Party Advisory
- https://review.whamcloud.com/#/c/36119/ x_refsource_MISCThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://lustre.org/ | x_refsource_MISCProductVendor Advisory | |
| http://wiki.lustre.org/Lustre_2.12.3_Changelog | x_refsource_MISCRelease NotesVendor Advisory | |
| https://jira.whamcloud.com/browse/LU-12590 | x_refsource_MISCExploitThird Party Advisory | |
| https://review.whamcloud.com/#/c/36119/ | x_refsource_MISCThird Party Advisory |
Change history (0)
No recorded changes yet.