// For flags

CVE-2018-6948

 

Severity Score

9.8
*CVSS v3

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

In CCN-lite 2, the function ccnl_prefix_to_str_detailed can cause a buffer overflow, when writing a prefix to the buffer buf. The maximal size of the prefix is CCNL_MAX_PREFIX_SIZE; the buffer has the size CCNL_MAX_PREFIX_SIZE. However, when NFN is enabled, additional characters are written to the buffer (e.g., the "NFN" and "R2C" tags). Therefore, sending an NFN-R2C packet with a prefix of size CCNL_MAX_PREFIX_SIZE can cause an overflow of buf inside ccnl_prefix_to_str_detailed.

En CCN-lite 2, la función ccnl_prefix_to_str_detailed puede provocar un desbordamiento de búfer al escribir un prefijo en el búfer buf. El tamaño máximo del prefijo es CCNL_MAX_PREFIX_SIZE; el búfer tiene el tamaño CCNL_MAX_PREFIX_SIZE. Sin embargo, cuando NFN está habilitado, se escriben caracteres adicionales en el búfer (por ejemplo, las etiquetas "NFN" y "R2C"). Por lo tanto, el envío de un paquete NFN-R2C con un prefijo de tamaño CCNL_MAX_PREFIX_SIZE puede provocar un desbordamiento de buf en ccnl_prefix_to_str_detailed.

*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
  • 2018-02-13 CVE Reserved
  • 2018-02-13 CVE Published
  • 2024-09-16 CVE Updated
  • 2024-10-26 EPSS 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
https://github.com/cn-uofbasel/ccn-lite/issues/193 Third Party Advisory
URL Date SRC
URL Date SRC
URL Date SRC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Ccn-lite
Search vendor "Ccn-lite"
Ccn-lite
Search vendor "Ccn-lite" for product "Ccn-lite"
2.0.0
Search vendor "Ccn-lite" for product "Ccn-lite" and version "2.0.0"
-
Affected