// For flags

CVE-2019-25042

unbound: out-of-bounds write via a compressed name in rdata_copy

Severity Score

9.8
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Unbound before 1.9.5 allows an out-of-bounds write via a compressed name in rdata_copy. NOTE: The vendor disputes that this is a vulnerability. Although the code may be vulnerable, a running Unbound installation cannot be remotely or locally exploited

** EN DISPUTA ** Unbound versiones anteriores a 1.9.5 permite una escritura fuera de límites por medio de un nombre comprimido en la función rdata_copy. NOTA: El proveedor niega que esto sea una vulnerabilidad. Aunque el código puede ser vulnerable, una instalación de Unbound en funcionamiento no puede ser explotada de forma remota o local

A flaw was found in unbound. An out-of-bounds write in the rdata_copy function may be abused by a remote attacker. The highest threat from this vulnerability is to data confidentiality and integrity as well as service availability.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2021-04-27 CVE Reserved
  • 2021-04-27 CVE Published
  • 2024-05-14 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-787: Out-of-bounds Write
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Nlnetlabs
Search vendor "Nlnetlabs"
Unbound
Search vendor "Nlnetlabs" for product "Unbound"
< 1.9.5
Search vendor "Nlnetlabs" for product "Unbound" and version " < 1.9.5"
-
Affected
Debian
Search vendor "Debian"
Debian Linux
Search vendor "Debian" for product "Debian Linux"
9.0
Search vendor "Debian" for product "Debian Linux" and version "9.0"
-
Affected