VDB
CVE-2021-28906
CVE-2021-28906
PUBLISHED
CVSS 7.5 HIGH
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.
EPSS 1.57% · 74.5th percentile
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS Score
1.57%
74.5th percentile
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Ubuntu:20.04:LTS | libyang | 0.16.105-1, 0.16.105-3, 0.16.105-3build1 |
| Ubuntu:22.04:LTS | libyang | 1.0.225-1.1, 0 |
Timeline
- May 20, 2021 CVE Published
- May 21, 2021 EPSS Score
- Jul 24, 2021 EPSS Score
- Jul 25, 2021 EPSS Score
- Oct 10, 2021 EPSS Score
- Nov 25, 2021 EPSS Score
- Jan 6, 2022 EPSS Score
- Jan 26, 2022 EPSS Score
- Mar 28, 2022 EPSS Score
- Apr 1, 2022 EPSS Score
- May 29, 2022 EPSS Score
- Jul 31, 2022 EPSS Score
References
- https://ubuntu.com/security/CVE-2021-28906 third-party-advisory
- https://github.com/CESNET/libyang/issues/1455 third-party-advisory
- https://www.cve.org/CVERecord?id=CVE-2021-28906 third-party-advisory