// For flags

CVE-2021-28903

Gentoo Linux Security Advisory 202107-54

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

1
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

A stack overflow in libyang <= v1.0.225 can cause a denial of service through function lyxml_parse_mem(). lyxml_parse_elem() function will be called recursively, which will consume stack space and lead to crash.

Un desbordamiento de pila en libyang versiones anteriores a v1.0.225 incluyéndola, puede causar una denegación de servicio por medio de la función lyxml_parse_mem().&#xa0;La función lyxml_parse_elem() será llamada de forma recursiva, lo que consumirá espacio en la pila y conllevará a un bloqueo

Multiple vulnerabilities have been found in libyang, the worst of which could result in a Denial of Service condition. Versions less than 1.0.236 are affected.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-03-19 CVE Reserved
  • 2021-05-20 CVE Published
  • 2024-08-03 CVE Updated
  • 2024-08-03 First Exploit
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
CWE
  • CWE-674: Uncontrolled Recursion
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Cesnet
Search vendor "Cesnet"
 Libyang
Search vendor "Cesnet" for product "Libyang"
 <= 1.0.225
Search vendor "Cesnet" for product "Libyang" and version " <= 1.0.225"
-
Affected