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CVE-2022-26495 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://lists.debian.org/debian-lts-announce/2022/03/msg00014.html CVEMailing ListThird Party Advisory
https://lists.debian.org/nbd/2022/01/msg00037.html CVEExploitMailing ListThird Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/G2UPX62BIWOOHSACGUDB7E3O4URNN37F/ CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IZHR73XMAJTCFGKUZRXVTZKCK2X3IFNA/ CVE
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PU5JFD4PEJED72TZLZ5R2Q2SFXICU5I5/ CVE

see all 16 references

Weakness Enumeration

CWE-IDCWE NameSource
CWE-190Integer Overflow or Wraparound[email protected]

Affected Products

ProductVersions
network block device project network block device
< 3.24

CPE

  • cpe:2.3:a:network_block_device_project:network_block_device:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
debian debian linux
9.0
10.0
11.0

CPE

  • cpe:2.3:o:debian:debian_linux:9.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
  • cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.
fedoraproject fedora
34
35
36

CPE

  • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
  • cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

11 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2022-26495
NVD Published Date:
Mar 6, 2022
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2022-26495 Details - Not Deferred