CVE-2023-34256

Katalog CVE

CVSS 5.5 · Medium EPSS 0,25%

Kerentanan Out-of-bounds Read pada linux kernel, suse linux enterprise +1 lainnya. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

An issue was discovered in the Linux kernel before 6.3.3. There is an out-of-bounds read in crc16 in lib/crc16.c when called from fs/ext4/super.c because ext4_group_desc_csum does not properly check an offset. NOTE: this is disputed by third parties because the kernel is not intended to defend against attackers with the stated "When modifying the block device while it is mounted by the filesystem" access.

Rincian

Terbit di NVD

31 Mei 2023

Terakhir diubah

17 Juni 2026

Status NVD

Modified

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

Jenis kelemahan (CWE)

CWE-125: Out-of-bounds Read

EPSS (30 hari)

0,25% peluang dieksploitasi; lebih tinggi dari 14,7% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://bugzilla.suse.com/show_bug.cgi?id=1211895 issue tracking · patch · advisory pihak ketiga
• https://cdn.kernel.org/pub/linux/kernel/v6.x/ChangeLog-6.3.3 mailing list · patch
• https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=4f04351888a83e595571de672e0a4a8b... mailing list · patch
• https://syzkaller.appspot.com/bug?extid=8785e41224a3afd04321 mailing list · patch
• https://lists.debian.org/debian-lts-announce/2023/07/msg00030.html mailing list · advisory pihak ketiga
• https://lists.debian.org/debian-lts-announce/2023/10/msg00027.html mailing list · advisory pihak ketiga