Upstream information

CVE-2022-26495 at MITRE

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.

SUSE information

Overall state of this security issue: Resolved

This issue is currently rated as having important severity.

CVSS v2 Scores
  National Vulnerability Database
Base Score 7.5
Vector AV:N/AC:L/Au:N/C:P/I:P/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact Partial
Integrity Impact Partial
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 9.8 8.1
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack Vector Network Network
Attack Complexity Low High
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact High High
Integrity Impact High High
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1196827 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Linux Enterprise Module for Package Hub 15 SP5
  • nbd >= 3.24-150000.3.3.1
 Patchnames:
SUSE Linux Enterprise Module for Package Hub 15 SP5 GA nbd-3.24-150000.3.3.1
SUSE Linux Enterprise Module for Package Hub 15 SP6
  • nbd >= 3.24-150000.3.3.1
 Patchnames:
SUSE Linux Enterprise Module for Package Hub 15 SP6 GA nbd-3.24-150000.3.3.1
openSUSE Leap 15.3
  • nbd >= 3.24-150000.3.3.1
 Patchnames:
openSUSE-SLE-15.3-2022-1276
openSUSE Tumbleweed
  • nbd >= 3.24-1.1
 Patchnames:
openSUSE-Tumbleweed-2024-11993

Status of this issue by product and package

Please note that this evaluation state might be work in progress, incomplete or outdated. Also information for service packs in the LTSS phase is only included for issues meeting the LTSS criteria. If in doubt, feel free to contact us for clarification. The updates are grouped by state of their lifecycle. SUSE product lifecycles are documented on the lifecycle page.

Product(s) Source package State
Products under general support and receiving all security fixes.
SUSE Linux Enterprise Module for Package Hub 15 SP5 nbd Released
SUSE Linux Enterprise Module for Package Hub 15 SP6 nbd Released
openSUSE Leap 15.5 nbd Affected
openSUSE Leap 15.6 nbd Affected
Products past their end of life and not receiving proactive updates anymore.
openSUSE Leap 15.3 nbd Affected
openSUSE Leap 15.4 nbd Affected

SUSE Timeline for this CVE

CVE page created: Sun Mar 6 13:00:05 2022
CVE page last modified: Tue Sep 3 19:25:28 2024