CVE-2019-20391
Severity Score
6.5
*CVSS v3.1
Exploit Likelihood
*EPSS
Affected Versions
*CPE
Public Exploits
1
*Multiple Sources
Exploited in Wild
-
*KEV
Decision
-
*SSVC
Descriptions
An invalid memory access flaw is present in libyang before v1.0-r3 in the function resolve_feature_value() when an if-feature statement is used inside a bit. Applications that use libyang to parse untrusted input yang files may crash.
Un fallo de acceso a memoria no válida está presente en libyang versiones anteriores a v1.0-r3, en la función resolve_feature_value() cuando es usada una sentencia if-feature dentro de un bit. Las aplicaciones que usan libyang para analizar archivos de entrada yang no confiables pueden bloquearse.
*Credits:
N/A
CVSS Scores
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Attack Vector
Attack Complexity
Authentication
Confidentiality
Integrity
Availability
* Common Vulnerability Scoring System
SSVC
- Decision:-
Exploitation
Automatable
Tech. Impact
* Organization's Worst-case Scenario
Timeline
- 2020-01-22 CVE Reserved
- 2020-01-22 CVE Published
- 2023-09-20 EPSS Updated
- 2024-08-05 CVE Updated
- 2024-08-05 First Exploit
- ---------- Exploited in Wild
- ---------- KEV Due Date
CWE
- CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
References (5)
| URL | Tag | Source |
|---|---|---|
| https://github.com/CESNET/libyang/compare/v1.0-r2...v1.0-r3 | Third Party Advisory | |
| https://lists.debian.org/debian-lts-announce/2023/09/msg00019.html | Mailing List |
|
| URL | Date | SRC |
|---|---|---|
| https://github.com/CESNET/libyang/issues/772 | 2024-08-05 |
| URL | Date | SRC |
|---|---|---|
| https://bugzilla.redhat.com/show_bug.cgi?id=1793934 | 2023-09-19 | |
| https://github.com/CESNET/libyang/commit/bdb596ddc07596fa212f231135b87d0b9178f6f8 | 2023-09-19 |
| URL | Date | SRC |
|---|
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" | 0.11 Search vendor "Cesnet" for product "Libyang" and version "0.11" | r1 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.11 Search vendor "Cesnet" for product "Libyang" and version "0.11" | r2 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.12 Search vendor "Cesnet" for product "Libyang" and version "0.12" | r1 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.12 Search vendor "Cesnet" for product "Libyang" and version "0.12" | r2 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.13 Search vendor "Cesnet" for product "Libyang" and version "0.13" | r1 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.13 Search vendor "Cesnet" for product "Libyang" and version "0.13" | r2 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.14 Search vendor "Cesnet" for product "Libyang" and version "0.14" | r1 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.15 Search vendor "Cesnet" for product "Libyang" and version "0.15" | r1 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.16 Search vendor "Cesnet" for product "Libyang" and version "0.16" | r1 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.16 Search vendor "Cesnet" for product "Libyang" and version "0.16" | r2 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 0.16 Search vendor "Cesnet" for product "Libyang" and version "0.16" | r3 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 1.0 Search vendor "Cesnet" for product "Libyang" and version "1.0" | r1 |
Affected
| ||||||
| Cesnet Search vendor "Cesnet" | Libyang Search vendor "Cesnet" for product "Libyang" | 1.0 Search vendor "Cesnet" for product "Libyang" and version "1.0" | r2 |
Affected
| ||||||