CVE-2026-31512

Katalog CVE

CVSS 5.5 · Medium EPSS 0,16%

Kerentanan pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: Bluetooth: L2CAP: Validate PDU length before reading SDU length in l2cap_ecred_data_rcv() l2cap_ecred_data_rcv() reads the SDU length field from skb->data using get_unaligned_le16() without first verifying that skb contains at least L2CAP_SDULEN_SIZE (2) bytes. When skb->len is less than 2, this reads past the valid data in the skb. The ERTM reassembly path correctly calls pskb_may_pull() before reading the SDU length (l2cap_reassemble_sdu, L2CAP_SAR_START case). Apply the same validation to the Enhanced Credit Based Flow Control data path.

Rincian

Terbit di NVD

22 April 2026

Terakhir diubah

17 Juni 2026

Status NVD

Analyzed

CVSS 3.1

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

EPSS (30 hari)

0,16% peluang dieksploitasi; lebih tinggi dari 4,9% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/3340be2bafdcc806f048273ea6d8e82a6597aa1b patch
• https://git.kernel.org/stable/c/40c7f7eea2f4d9cb0b3e924254c8c9053372168f patch
• https://git.kernel.org/stable/c/477ad4976072056c348937e94f24583321938df4 patch
• https://git.kernel.org/stable/c/5ad981249be52f5e4e92e0e97b436b569071cb86 patch
• https://git.kernel.org/stable/c/8c96f3bd4ae0802db90630be8e9851827e9c9209 patch
• https://git.kernel.org/stable/c/c65bd945d1c08c3db756821b6bf9f1c4a77b29c6 patch
• https://git.kernel.org/stable/c/cef09691cfb61f6c91cc27c3d69634f81c8ab949 patch
• https://git.kernel.org/stable/c/e47315b84d0eb188772c3ff5cf073cdbdefca6b4 patch