CVE-2022-48828

Katalog CVE

CVSS 5.5 · Medium EPSS 0,63%

Kerentanan Integer Underflow (Wrap or Wraparound) pada linux kernel. Skor CVSS 3.1 5.5 (Medium) menurut NVD.

Deskripsi (NVD)

In the Linux kernel, the following vulnerability has been resolved: NFSD: Fix ia_size underflow iattr::ia_size is a loff_t, which is a signed 64-bit type. NFSv3 and NFSv4 both define file size as an unsigned 64-bit type. Thus there is a range of valid file size values an NFS client can send that is already larger than Linux can handle. Currently decode_fattr4() dumps a full u64 value into ia_size. If that value happens to be larger than S64_MAX, then ia_size underflows. I'm about to fix up the NFSv3 behavior as well, so let's catch the underflow in the common code path: nfsd_setattr().

Rincian

Terbit di NVD

16 Juli 2024

Terakhir diubah

4 Agustus 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-191: Integer Underflow (Wrap or Wraparound)

EPSS (30 hari)

0,63% peluang dieksploitasi; lebih tinggi dari 48,8% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://git.kernel.org/stable/c/38d02ba22e43b6fc7d291cf724bc6e3b7be6626b patch
• https://git.kernel.org/stable/c/8e0ecaf7a7e57b30284d6b3289cc436100fadc48 patch
• https://git.kernel.org/stable/c/d2211e6e34d0755f35e2f8c22d81999fa81cfc71 patch
• https://git.kernel.org/stable/c/da22ca1ad548429d7822011c54cfe210718e0aa7 patch
• https://git.kernel.org/stable/c/e6faac3f58c7c4176b66f63def17a34232a17b0e patch
• https://cert-portal.siemens.com/productcert/html/ssa-265688.html
• https://cert-portal.siemens.com/productcert/html/ssa-355557.html