// For flags

CVE-2019-11467

 

Severity Score

7.5
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In Couchbase Server 4.6.3 and 5.5.0, secondary indexing encodes the entries to be indexed using collatejson. When index entries contain certain characters like \t, <, >, it caused buffer overrun as encoded string would be much larger than accounted for, causing indexer service to crash and restart. This has been remedied in versions 5.1.2 and 5.5.2 to ensure buffer always grows as needed for any input.

En Couchbase Server versiones, 4.6.3 y 5.5.0, la indexación secundaria codifica las entradas que se indexarán mediante collatejson. Cuando las entradas de índice contienen ciertos caracteres como \ t, &lt;,&gt;, se produce el desbordamiento del búfer ya que la cadena codificada sería mucho más grande de lo que se tiene en cuenta, lo que hace que el servicio del indexador se bloquee y reinicie. Esto se ha solucionado en las versiones 5.1.2 y 5.5.2 para garantizar que el búfer siempre crezca según sea necesario para cualquier entrada.

*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
Complete
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2019-04-22 CVE Reserved
  • 2019-09-10 CVE Published
  • 2023-03-07 EPSS Updated
  • 2024-08-04 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-119: Improper Restriction of Operations within the Bounds of a Memory Buffer
CAPEC
References (1)
URL Tag Source
URL Date SRC
URL Date SRC
URL Date SRC
https://www.couchbase.com/resources/security#SecurityAlerts 2020-08-24
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Couchbase
Search vendor "Couchbase"
 Couchbase Server
Search vendor "Couchbase" for product "Couchbase Server"
 4.6.3
Search vendor "Couchbase" for product "Couchbase Server" and version "4.6.3"
-
Affected
Couchbase
Search vendor "Couchbase"
 Couchbase Server
Search vendor "Couchbase" for product "Couchbase Server"
 5.5.0
Search vendor "Couchbase" for product "Couchbase Server" and version "5.5.0"
-
Affected