CVE-2025-38679: fallo de gravedad alta en Linux
media: venus: Fix OOB read due to missing payload bound check
Publicada el · Actualizada el
21Vexday Risk Score
Sin señal de explotación. Ningún artefacto público de explotación conocido hasta ahora.
ssvc Trackcvss 7.3epss 0.2%
probabilidad de explotación
0.2%top 94% de las CVE
explotación observada
noninguna fuente lo reporta
In the Linux kernel, the following vulnerability has been resolved:
media: venus: Fix OOB read due to missing payload bound check
Currently, The event_seq_changed() handler processes a variable number
of properties sent by the firmware. The number of properties is indicated
by the firmware and used to iterate over the payload. However, the
payload size is not being validated against the actual message length.
This can lead to out-of-bounds memory access if the firmware provides a
property count that exceeds the data available in the payload. Such a
condition can result in kernel crashes or potential information leaks if
memory beyond the buffer is accessed.
Fix this by properly validating the remaining size of the payload before
each property access and updating bounds accordingly as properties are
parsed.
This ensures that property parsing is safely bounded within the received
message buffer and protects against malformed or malicious firmware
behavior.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:L/A:H
Productos afectados
Linux · LinuxCVEs relacionadas — Linux
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Referencias
https://cert-portal.siemens.com/productcert/html/ssa-032379.htmlhttps://git.kernel.org/stable/c/06d6770ff0d8cc8dfd392329a8cc03e2a83e7289https://git.kernel.org/stable/c/6f08bfb5805637419902f3d70069fe17a404545bhttps://git.kernel.org/stable/c/8f274e2b05fdae7a53cee83979202b5ecb49035chttps://git.kernel.org/stable/c/a3eef5847603cd8a4110587907988c3f93c9605ahttps://git.kernel.org/stable/c/bed4921055dd7bb4d2eea2729852ae18cf97a2c6https://git.kernel.org/stable/c/c956c3758510b448b3d4d10d1da8230e8c9bf668https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html