Upstream information

CVE-2021-3716 at MITRE

Description

A flaw was found in nbdkit due to to improperly caching plaintext state across the STARTTLS encryption boundary. A MitM attacker could use this flaw to inject a plaintext NBD_OPT_STRUCTURED_REPLY before proxying everything else a client sends to the server, potentially leading the client to terminate the NBD session. The highest threat from this vulnerability is to system availability.

SUSE information

Overall state of this security issue: Does not affect SUSE products

This issue is currently not rated by SUSE as it is not affecting the SUSE Enterprise products.

CVSS v2 Scores
  National Vulnerability Database
Base Score 3.5
Vector AV:N/AC:M/Au:S/C:N/I:N/A:P
Access Vector Network
Access Complexity Medium
Authentication Single
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 3.1 3.5
Vector CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L
Attack Vector Network Network
Attack Complexity High Low
Privileges Required Low Low
User Interaction None Required
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact Low Low
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1189634 [RESOLVED / FIXED]

No SUSE Security Announcements cross referenced.

List of released packages

Product(s) Fixed package version(s) References
openSUSE Leap 15.4
  • nbdkit >= 1.29.4-150400.1.4
  • nbdkit-basic-filters >= 1.29.4-150400.1.4
  • nbdkit-basic-plugins >= 1.29.4-150400.1.4
  • nbdkit-curl-plugin >= 1.29.4-150400.1.4
  • nbdkit-python-plugin >= 1.29.4-150400.1.4
  • nbdkit-server >= 1.29.4-150400.1.4
  • nbdkit-ssh-plugin >= 1.29.4-150400.1.4
  • nbdkit-vddk-plugin >= 1.29.4-150400.1.4
 Patchnames:
openSUSE Leap 15.4 GA nbdkit-1.29.4-150400.1.4
openSUSE Tumbleweed
  • nbdkit >= 1.27.8-1.2
  • nbdkit-bash-completion >= 1.27.8-1.2
  • nbdkit-basic-filters >= 1.27.8-1.2
  • nbdkit-basic-plugins >= 1.27.8-1.2
  • nbdkit-curl-plugin >= 1.27.8-1.2
  • nbdkit-devel >= 1.27.8-1.2
  • nbdkit-example-plugins >= 1.27.8-1.2
  • nbdkit-gzip-filter >= 1.27.8-1.2
  • nbdkit-nbd-plugin >= 1.27.8-1.2
  • nbdkit-python-plugin >= 1.27.8-1.2
  • nbdkit-server >= 1.27.8-1.2
  • nbdkit-ssh-plugin >= 1.27.8-1.2
  • nbdkit-tar-filter >= 1.27.8-1.2
  • nbdkit-tmpdisk-plugin >= 1.27.8-1.2
  • nbdkit-vddk-plugin >= 1.27.8-1.2
  • nbdkit-xz-filter >= 1.27.8-1.2
 Patchnames:
openSUSE Tumbleweed GA nbdkit-1.27.8-1.2

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
Container Status
suse/sles/15.4/cdi-importer:1.43.0
suse/sles/15.5/cdi-importer:1.55.0		 nbdkitAnalysis

SUSE Timeline for this CVE

CVE page created: Fri Aug 20 12:15:11 2021
CVE page last modified: Sat Jun 24 13:50:27 2023