CVE-2023-52444

linux kernel

TLP:CLEAR

csirt@kutim:~/threat-intel/cve/CVE-2023-52444

Katalog CVE

CVSS 7.8 · High EPSS 0,25%

Kerentanan Improper Restriction of Operations within the Bounds of a Memory Buffer pada linux kernel. Skor CVSS 3.1 7.8 (High) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix to avoid dirent corruption As Al reported in link[1]: f2fs_rename() ... if (old_dir != new_dir && !whiteout) f2fs_set_link(old_inode, old_dir_entry, old_dir_page, new_dir); else f2fs_put_page(old_dir_page, 0); You want correct inumber in the ".." link. And cross-directory rename does move the source to new parent, even if you'd been asked to leave a whiteout in the old place. [1] https://lore.kernel.org/all/20231017055040.GN800259@ZenIV/ With below testcase, it may cause dirent corruption, due to it missed to call f2fs_set_link() to update ".." link to new directory. - mkdir -p dir/foo - renameat2 -w dir/foo bar [ASSERT] (__chk_dots_dentries:1421) --> Bad inode number[0x4] for '..', parent parent ino is [0x3] [FSCK] other corrupted bugs [Fail]

Rincian

Terbit di NVD
22 Februari 2024
Terakhir diubah
4 Agustus 2026
Status NVD
Modified
CVSS 3.1
7.8 (High), sumber NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H · uraikan di kalkulator
Jenis kelemahan (CWE)
CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
EPSS (30 hari)
0,25% peluang dieksploitasi; lebih tinggi dari 14,5% CVE lain

Produk dan versi terdampak

VendorProdukVersi terdampak
linux linux kernel Versi 4.2.0 hingga sebelum 4.19.306
linux linux kernel Versi 4.20 hingga sebelum 5.4.268
linux linux kernel Versi 5.5.0 hingga sebelum 5.10.209
linux linux kernel Versi 5.11.0 hingga sebelum 5.15.148
linux linux kernel Versi 5.16.0 hingga sebelum 6.1.75
linux linux kernel Versi 6.2.0 hingga sebelum 6.6.14
linux linux kernel Versi 6.7.0 hingga sebelum 6.7.2

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

Sumber: NVD · CVE.org · EPSS. Halaman ini disusun otomatis dari data tersebut; pembaruan terakhir 5 Okt 2026, 20:10 WITA. Kalau sistem di Perangkat Daerah memakai produk ini dan butuh bantuan, laporkan lewat kanal pelaporan.