Upstream information

CVE-2021-28906 at MITRE

Description

In function read_yin_leaf() in libyang <= v1.0.225, it doesn't check whether the value of retval->ext[r] is NULL. In some cases, it can be NULL, which leads to the operation of retval->ext[r]->flags that results in a crash.

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 5
Vector AV:N/AC:L/Au:N/C:N/I:N/A:P
Access Vector Network
Access Complexity Low
Authentication None
Confidentiality Impact None
Integrity Impact None
Availability Impact Partial
CVSS v3 Scores
  National Vulnerability Database SUSE
Base Score 7.5 7.5
Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack Vector Network Network
Attack Complexity Low Low
Privileges Required None None
User Interaction None None
Scope Unchanged Unchanged
Confidentiality Impact None None
Integrity Impact None None
Availability Impact High High
CVSSv3 Version 3.1 3.1
SUSE Bugzilla entry: 1186378 [RESOLVED / FIXED]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
SUSE Enterprise Storage 7.1
SUSE Linux Enterprise High Performance Computing 15 SP3
SUSE Linux Enterprise Module for Server Applications 15 SP3
SUSE Linux Enterprise Server 15 SP3
SUSE Linux Enterprise Server for SAP Applications 15 SP3
SUSE Manager Proxy 4.2
SUSE Manager Retail Branch Server 4.2
SUSE Manager Server 4.2
  • libyang-extentions >= 1.0.184-150300.3.6.1
  • libyang1 >= 1.0.184-150300.3.6.1
 Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP3-2022-3245
SUSE Linux Enterprise High Performance Computing 15 SP4
SUSE Linux Enterprise Module for Server Applications 15 SP4
SUSE Linux Enterprise Server 15 SP4
SUSE Linux Enterprise Server for SAP Applications 15 SP4
SUSE Manager Proxy 4.3
SUSE Manager Retail Branch Server 4.3
SUSE Manager Server 4.3
  • libyang-extentions >= 1.0.184-150300.3.6.1
  • libyang1 >= 1.0.184-150300.3.6.1
 Patchnames:
SUSE-SLE-Module-Server-Applications-15-SP4-2022-3245
openSUSE Leap 15.3
  • libyang-cpp-devel >= 1.0.184-150300.3.6.1
  • libyang-cpp1 >= 1.0.184-150300.3.6.1
  • libyang-devel >= 1.0.184-150300.3.6.1
  • libyang-doc >= 1.0.184-150300.3.6.1
  • libyang-extentions >= 1.0.184-150300.3.6.1
  • libyang1 >= 1.0.184-150300.3.6.1
  • python3-yang >= 1.0.184-150300.3.6.1
  • yang-tools >= 1.0.184-150300.3.6.1
 Patchnames:
openSUSE-SLE-15.3-2022-3245
openSUSE Leap 15.4
  • libyang-cpp-devel >= 1.0.184-150300.3.6.1
  • libyang-cpp1 >= 1.0.184-150300.3.6.1
  • libyang-devel >= 1.0.184-150300.3.6.1
  • libyang-doc >= 1.0.184-150300.3.6.1
  • libyang-extentions >= 1.0.184-150300.3.6.1
  • libyang1 >= 1.0.184-150300.3.6.1
  • python3-yang >= 1.0.184-150300.3.6.1
  • yang-tools >= 1.0.184-150300.3.6.1
 Patchnames:
openSUSE-SLE-15.4-2022-3245

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 Manager Proxy 4.3 libyang Released
SUSE Manager Retail Branch Server 4.3 libyang Released
SUSE Manager Server 4.3 libyang Released
Products under Long Term Service Pack support and receiving important and critical security fixes.
SUSE Linux Enterprise High Performance Computing 15 SP3 libyang Released
SUSE Linux Enterprise High Performance Computing 15 SP3-ESPOS libyang Affected
SUSE Linux Enterprise High Performance Computing 15 SP3-LTSS libyang Affected
SUSE Linux Enterprise High Performance Computing 15 SP4 libyang Released
SUSE Linux Enterprise High Performance Computing 15 SP4-ESPOS libyang Affected
SUSE Linux Enterprise High Performance Computing 15 SP4-LTSS libyang Affected
SUSE Linux Enterprise Module for Server Applications 15 SP3 libyang Released
SUSE Linux Enterprise Module for Server Applications 15 SP4 libyang Released
SUSE Linux Enterprise Server 15 SP3 libyang Released
SUSE Linux Enterprise Server 15 SP3-LTSS libyang Affected
SUSE Linux Enterprise Server 15 SP4 libyang Released
SUSE Linux Enterprise Server 15 SP4-LTSS libyang Affected
SUSE Linux Enterprise Server for SAP Applications 15 SP3 libyang Released
SUSE Linux Enterprise Server for SAP Applications 15 SP4 libyang Released
Products past their end of life and not receiving proactive updates anymore.
SUSE Enterprise Storage 7.1 libyang Released
SUSE Linux Enterprise Real Time 15 SP3 libyang Affected
SUSE Linux Enterprise Real Time 15 SP4 libyang Affected
SUSE Linux Enterprise Server 15 SP3-BCL libyang Affected
SUSE Manager Proxy 4.2 libyang Released
SUSE Manager Retail Branch Server 4.2 libyang Released
SUSE Manager Server 4.2 libyang Released
openSUSE Leap 15.3 libyang Affected
openSUSE Leap 15.4 libyang Affected

SUSE Timeline for this CVE

CVE page created: Fri May 21 15:29:44 2021
CVE page last modified: Fri Sep 13 13:13:49 2024