CVE-2024-36957
Status: AnalyzedMedium (5.5)—
In the Linux kernel, the following vulnerability has been resolved:
octeontx2-af: avoid off-by-one read from userspace
We try to access count + 1 byte from userspace with memdup_user(buffer, count + 1). However, the userspace only provides buffer of count bytes and only these count bytes are verified to be okay to access. To ensure the copied buffer is NUL terminated, we use memdup_user_nul instead.
CVSS
- Version: 3.1
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- Base score: 5.5
Exploitation probability (EPSS)
- Probability of exploitation in the next 30 days: 0.24%
- Percentile among all scored CVEs: 14
- Score date: 10/8/2026
EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).
Affected technologies (2)
CWEs
- CWE-193
References
- https://git.kernel.org/stable/c/0a0285cee11c7dcc2657bcd456e469958a5009e7
- https://git.kernel.org/stable/c/8f11fe3ea3fc261640cfc8a5addd838000407c67
- https://git.kernel.org/stable/c/bcdac70adceb44373da204c3c297f2a98e13216e
- https://git.kernel.org/stable/c/ec697fbd38cbe2eef0948b58673b146caa95402f
- https://git.kernel.org/stable/c/f299ee709fb45036454ca11e90cb2810fe771878
- https://git.kernel.org/stable/c/fc3e0076c1f82fe981d321e3a7bad4cbee542c19
- https://git.kernel.org/stable/c/0a0285cee11c7dcc2657bcd456e469958a5009e7
- https://git.kernel.org/stable/c/8f11fe3ea3fc261640cfc8a5addd838000407c67
- https://git.kernel.org/stable/c/bcdac70adceb44373da204c3c297f2a98e13216e
- https://git.kernel.org/stable/c/ec697fbd38cbe2eef0948b58673b146caa95402f
- https://git.kernel.org/stable/c/f299ee709fb45036454ca11e90cb2810fe771878
- https://git.kernel.org/stable/c/fc3e0076c1f82fe981d321e3a7bad4cbee542c19
- https://lists.debian.org/debian-lts-announce/2024/06/msg00019.html
Raw JSON (NVD)
Show
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"value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: octeontx2-af: evitar lecturas uno por uno desde el espacio de usuario Intentamos acceder al recuento + 1 byte desde el espacio de usuario con memdup_user (búfer, recuento + 1). Sin embargo, el espacio de usuario solo proporciona un búfer de bytes de recuento y solo se verifica que se puede acceder a estos bytes de recuento. Para garantizar que el búfer copiado tenga terminación NUL, usamos memdup_user_nul en su lugar."
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