// For flags

CVE-2011-4623

rsyslog: DoS due integer signedness error while extending rsyslog counted string buffer

Severity Score

7.5
*CVSS v3

Exploit Likelihood

< 1%
*EPSS

Affected Versions

72
*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

-
*SSVC
Descriptions

Integer overflow in the rsCStrExtendBuf function in runtime/stringbuf.c in the imfile module in rsyslog 4.x before 4.6.6, 5.x before 5.7.4, and 6.x before 6.1.4 allows local users to cause a denial of service (daemon hang) via a large file, which triggers a heap-based buffer overflow.

Desbordamiento de entero en la función rsCStrExtendBuf en runtime/stringbuf.c en el módulo imfile en rsyslog v4.x anteriores v4.6.6, v5.x anteriores a v5.7.4, y v6.x anteriores a v6.1.4, permite a atacantes remotos provocar una denegación de servicio (cuelgue del demonio) a través de un fichero grande, que provoca un desbordamiento de búfer basado en memoria dinámica.

Multiple vulnerabilities have been found in RSYSLOG, allowing attackers to cause Denial of Service. Versions less than 8.4.2 are affected.

*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
Local
Attack Complexity
Low
Authentication
None
Confidentiality
None
Integrity
None
Availability
Partial
Attack Vector
Adjacent
Attack Complexity
Medium
Authentication
None
Confidentiality
Partial
Integrity
Partial
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:-
Exploitation
-
Automatable
-
Tech. Impact
-
* Organization's Worst-case Scenario
Timeline
  • 2011-11-29 CVE Reserved
  • 2012-09-25 CVE Published
  • 2024-08-07 CVE Updated
  • 2025-03-30 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
  • CWE-189: Numeric Errors
CAPEC
Affected Vendors, Products, and Versions (72)