CVE-2021-28905

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2021-28905
In function lys_node_free() in libyang <= v1.0.225, it asserts that the value of node->module can't be NULL. But in some cases, node->module can be null, which triggers a reachable assertion (CWE-617).

7.5 /10

CVSS v3 : HIGH

V3 Legend

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

5.0 /10

CVSS v2.0 : MEDIUM

V2 Legend

Vector : AV:N/AC:L/Au:N/C:N/I:N/A:P

Exploitability : 10.0 / Impact : 2.9

Access Vector NETWORK

Access Complexity LOW

Authentication NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact PARTIAL

References
Link Resource
https://github.com/CESNET/libyang/issues/1452 Exploit Issue Tracking Patch Third Party Advisory
https://security.gentoo.org/glsa/202107-54 Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*
History

05 Apr 2022, 18:09

Type Values Removed Values Added
References
  • (GENTOO) https://security.gentoo.org/glsa/202107-54 - Third Party Advisory
References (CONFIRM) https://github.com/CESNET/libyang/issues/1452 - Exploit, Issue Tracking, Third Party Advisory (CONFIRM) https://github.com/CESNET/libyang/issues/1452 - Exploit, Issue Tracking, Patch, Third Party Advisory

24 May 2021, 17:04

Type Values Removed Values Added
References (CONFIRM) https://github.com/CESNET/libyang/issues/1452 - (CONFIRM) https://github.com/CESNET/libyang/issues/1452 - Exploit, Issue Tracking, Third Party Advisory
CVSS v2 : unknown
v3 : unknown 		v2 : 5.0
v3 : 7.5
CWE CWE-617
CPE cpe:2.3:a:cesnet:libyang:*:*:*:*:*:*:*:*

20 May 2021, 19:15

Type Values Removed Values Added
New CVE
Information

Published : 2021-05-20 19:15

Updated : 2024-02-04 21:47

NVD link : CVE-2021-28905

Mitre link : CVE-2021-28905

CVE.ORG link : CVE-2021-28905

JSON object : View

Products Affected

cesnet

  • libyang
CWE
CWE-617

Reachable Assertion