comedi: dt9812: fix DMA buffers on stack (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.72 % · percentile 54 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: comedi: dt9812: fix DMA buffers on stack USB transfer buffers are typically mapped for DMA and must not be allocated on the stack or transfers will fail. Allocate proper transfer buffers in the various command helpers and return an error on short transfers instead of acting on random stack data. Note that this also fixes a stack info leak on systems where DMA is not used as 32 bytes are always sent to the device regardless of how short the command is.
Weaknesses (CWE)
- CWE-787 — Out-of-bounds Write
References
- https://git.kernel.org/stable/c/a6af69768d5cb4b2528946d53be5fa19ade37723
- https://git.kernel.org/stable/c/365a346cda82f51d835c49136a00a9df8a78c7f2
- https://git.kernel.org/stable/c/8a52bc480992c7c9da3ebfea456af731f50a4b97
- https://git.kernel.org/stable/c/39ea61037ae78f14fa121228dd962ea3280eacf3
- https://git.kernel.org/stable/c/3efb7af8ac437085b6c776e5b54830b149d86efe
- https://git.kernel.org/stable/c/786f5b03450454557ff858a8bead5d7c0cbf78d6
- https://git.kernel.org/stable/c/3ac273d154d634e2034508a14db82a95d7ad12ed
- https://git.kernel.org/stable/c/20cebb8b620dc987e55ddc46801de986e081757e
- https://git.kernel.org/stable/c/536de747bc48262225889a533db6650731ab25d3
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | CISA-ADP |
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | MEDIUM 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2021-34482
- GCVE · GCVE-0-2021-47477
CERT-FR advisories
- CERTFR-2024-AVI-0526 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0496 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 2.6.29 < 4.4.292cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.5 < 4.9.290cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.10 < 4.14.255cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.217cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.159cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.79cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.14.18cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.15 < 5.15.2
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 63274cd7d38a3322d90b66a5bc976de1fb899051 < a6af69768d5cb4b2528946d53be5fa19ade37723 ; affected 63274cd7d38a3322d90b66a5bc976de1fb899051 < 365a346cda82f51d835c49136a00a9df8a78c7f2 ; affected 63274cd7d38a3322d90b66a5bc976de1fb899051 < 8a52bc480992c7c9da3ebfea456af731f50a4b97 ; affected 63274cd7d38a3322d90b66a5bc976de1fb899051 < 39ea61037ae78f14fa121228dd962ea3280eacf3 ; affected 63274cd7d38a3322d90b66a5bc976de1fb899051 < 3efb7af8ac437085b6c776e5b54830b149d86efe ; affected 63274cd7d38a3322d90b66a5bc976de1fb899051 < 786f5b03450454557ff858a8bead5d7c0cbf78d6 |
| Linux · Linux | affected 2.6.29 ; unaffected 0 < 2.6.29 ; unaffected 4.4.292 ≤ 4.4.* ; unaffected 4.9.290 ≤ 4.9.* ; unaffected 4.14.255 ≤ 4.14.* ; unaffected 4.19.217 ≤ 4.19.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |