CVEvulnerability

CVE-2023-53680

7.8 HIGH Published 2025-10-07 Modified 2026-10-28 Official page ↗
Status
Modified
Published
2025-10-07
Last modified
2026-10-28
Assigner
416baaa9-dc9f-4396-8d5f-8c081fb06d67
CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS 3.1 ([email protected])
7.8 HIGH — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-787

Description

In the Linux kernel, the following vulnerability has been resolved: NFSD: Avoid calling OPDESC() with ops->opnum == OP_ILLEGAL OPDESC() simply indexes into nfsd4_ops[] by the op's operation number, without range checking that value. It assumes callers are careful to avoid calling it with an out-of-bounds opnum value. nfsd4_decode_compound() is not so careful, and can invoke OPDESC() with opnum set to OP_ILLEGAL, which is 10044 -- well beyond the end of nfsd4_ops[].

Affected configurations

• linux linux kernel (>= 4.14 < 5.10.220) • linux linux kernel (>= 5.11 < 5.15.107) • linux linux kernel (>= 5.16 < 6.1.24) • linux linux kernel (>= 6.2 < 6.2.11) • linux linux kernel 6.3

Related

Weakness · CWE (1)

  • CWE-787 Out-of-bounds Write weakness

References