CVE-2021-28906 Information

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Reference

https://github.com/CESNET/libyang/issues/1455 https://security.gentoo.org/glsa/202107-54

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

NONE

Availability Impact

NONE

Base Score

HIGH

Base Severity

7.5