CVE-2021-28902

2021-05-2019:15:00

Debian Security Bug Tracker

security-tracker.debian.org

7.5 High

CVSS3

Attack Vector

NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

UNCHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

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

5 Medium

CVSS2

Access Vector

NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

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

0.001 Low

EPSS

Percentile

45.0%

JSON

In function read_yin_container() 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.

OSVersionArchitecturePackageVersionFilename
Debian11alllibyang<= 1.0.225-1.1libyang_1.0.225-1.1_all.deb
Debian10alllibyang<= 0.16.105-1+deb10u1libyang_0.16.105-1+deb10u1_all.deb