CVEvulnerability

CVE-2022-26495

9.8 CRITICAL Published 2022-03-06 Modified 2026-06-17 Official page ↗
Status
Modified
Published
2022-03-06
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
9.8 CRITICAL — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.0 ([email protected])
7.5 HIGH — AV:N/AC:L/Au:N/C:P/I:P/A:P
Weaknesses
CWE-190

Description

In nbd-server in nbd before 3.24, there is an integer overflow with a resultant heap-based buffer overflow. A value of 0xffffffff in the name length field will cause a zero-sized buffer to be allocated for the name, resulting in a write to a dangling pointer. This issue exists for the NBD_OPT_INFO, NBD_OPT_GO, and NBD_OPT_EXPORT_NAME messages.

Affected configurations

• network block device project network block device (< 3.24) • debian debian linux 9.0 • debian debian linux 10.0 • debian debian linux 11.0 • fedoraproject fedora 34 • fedoraproject fedora 35 • fedoraproject fedora 36

Related

Weakness · CWE (1)

  • CWE-190 Integer Overflow or Wraparound weakness

References