CVE-2025-38694
Estado: ModificadaMedia (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
media: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb()
In dib7090p_rw_on_apb, msg is controlled by user. When msg[0].buf is null and msg[0].len is zero, former checks on msg[0].buf would be passed. If accessing msg[0].buf[2] without sanity check, null pointer deref would happen. We add check on msg[0].len to prevent crash. Similar issue occurs when access msg[1].buf[0] and msg[1].buf[1].
Similar commit: commit 0ed554fd769a ("media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()")
CVSS
- Versión: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Puntuación base: 5.5
Probabilidad de explotación (EPSS)
- Probabilidad de explotación en los próximos 30 días: 0.18%
- Percentil entre todas las CVEs puntuadas: 6
- Fecha de la puntuación: 5/10/2026
EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).
Tecnologías afectadas (2)
CWE
- CWE-476
Referencias
- https://git.kernel.org/stable/c/09906650484a09b3a4d4b3d3065395856810becd
- https://git.kernel.org/stable/c/0bb32863426afe0badac25c28d59021f211d0f48
- https://git.kernel.org/stable/c/19eb5d8e6aa1169d368a4d69aae5572950deb89d
- https://git.kernel.org/stable/c/529fd5593b721e6f4370c591f5086649ed149ff6
- https://git.kernel.org/stable/c/a0f744d6cdde81d7382e183f77a4080a39b206cd
- https://git.kernel.org/stable/c/bc07cae4f36bb18d5b6a9ed835c1278ca44ec82e
- https://git.kernel.org/stable/c/c33280d6bd668dbdc5a5f07887cc63a52ab4789c
- https://git.kernel.org/stable/c/ce5cac69b2edac3e3246fee03e8f4c2a1075238b
- https://git.kernel.org/stable/c/ce8b7c711b9c4f040b5419729d0972db8e374324
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html
- https://cert-portal.siemens.com/productcert/html/ssa-032379.html
JSON original (NVD)
Mostrar
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmedia: dvb-frontends: dib7090p: fix null-ptr-deref in dib7090p_rw_on_apb()\n\nIn dib7090p_rw_on_apb, msg is controlled by user. When msg[0].buf is null and\nmsg[0].len is zero, former checks on msg[0].buf would be passed. If accessing\nmsg[0].buf[2] without sanity check, null pointer deref would happen. We add\ncheck on msg[0].len to prevent crash. Similar issue occurs when access\nmsg[1].buf[0] and msg[1].buf[1].\n\nSimilar commit: commit 0ed554fd769a (\"media: dvb-usb: az6027: fix null-ptr-deref in az6027_i2c_xfer()\")"
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