// For flags

CVE-2017-1000099

 

Severity Score

6.5
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

When asking to get a file from a file:// URL, libcurl provides a feature that outputs meta-data about the file using HTTP-like headers. The code doing this would send the wrong buffer to the user (stdout or the application's provide callback), which could lead to other private data from the heap to get inadvertently displayed. The wrong buffer was an uninitialized memory area allocated on the heap and if it turned out to not contain any zero byte, it would continue and display the data following that buffer in memory.

A la hora de pedir un archivo de una URL de tipo "file://", libcurl ofrece una característica que envía metadatos sobre el archivo mediante cabeceras HTTP. El código responsable de esto enviaría el búfer erróneo al usuario (stdout o la llamada de vuelta de la aplicación), lo que podría provocar que otros datos privados de la memoria dinámica (heap) se muestren en consecuencia. El búfer erróneo es un área no inicializada de la memoria asignada en la memoria dinámica y si resulta que no tienen ningún byte con valor cero, continuaría y mostraría los datos que siguen a ese búfer en la memoria.

*Credits: N/A
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
None
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2017-08-09 CVE Published
  • 2017-10-03 CVE Reserved
  • 2023-03-07 EPSS Updated
  • 2024-08-05 CVE Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-200: Exposure of Sensitive Information to an Unauthorized Actor
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Haxx
Search vendor "Haxx"
Libcurl
Search vendor "Haxx" for product "Libcurl"
7.54.1
Search vendor "Haxx" for product "Libcurl" and version "7.54.1"
-
Affected