CVE-2025-68799

Katalog CVE

CVSS 8.1 · High EPSS 0,31%

Skor CVSS 3.1 8.1 (High) menurut CNA.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: caif: fix integer underflow in cffrml_receive() The cffrml_receive() function extracts a length field from the packet header and, when FCS is disabled, subtracts 2 from this length without validating that len >= 2. If an attacker sends a malicious packet with a length field of 0 or 1 to an interface with FCS disabled, the subtraction causes an integer underflow. This can lead to memory exhaustion and kernel instability, potential information disclosure if padding contains uninitialized kernel memory. Fix this by validating that len >= 2 before performing the subtraction.

Rincian

Terbit di NVD

13 Januari 2026

Terakhir diubah

30 Juli 2026

Status NVD

Deferred

CVSS 3.1

8.1 (High), sumber CNA
CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:H · uraikan di kalkulator

EPSS (30 hari)

0,31% peluang dieksploitasi; lebih tinggi dari 22,2% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/21fdcc00656a60af3c7aae2dea8dd96abd35519c
• https://git.kernel.org/stable/c/4ec29714aa4e0601ea29d2f02b461fc0ac92c2c3
• https://git.kernel.org/stable/c/785c7be6361630070790f6235b696da156ac71b3
• https://git.kernel.org/stable/c/8a11ff0948b5ad09b71896b7ccc850625f9878d1
• https://git.kernel.org/stable/c/c54091eec6fed19e94182aa05dd6846600a642f7
• https://git.kernel.org/stable/c/f407f1c9f45bbf5c99fd80b3f3f4a94fdbe35691
• https://git.kernel.org/stable/c/f818cd472565f8b0c2c409b040e0121c5cf8592c