// For flags

CVE-2018-25103

Use-after-free vulnerabilities in lighttpd <= 1.4.50

Severity Score

5.3
*CVSS v3.1

Exploit Likelihood

*EPSS

Affected Versions

*CPE

Public Exploits

0
*Multiple Sources

Exploited in Wild

-
*KEV

Decision

Attend
*SSVC
Descriptions

There exists use-after-free vulnerabilities in lighttpd <= 1.4.50 request parsing which might read from invalid pointers to memory used in the same request, not from other requests.

Existe una vulnerabilidad de use-after-free en lighttpd &lt;= 1.4.50 que puede permitir el acceso para realizar una comparación que no distinga entre mayúsculas y minúsculas con el puntero reutilizado.

*Credits: Thanks to VDOO Embedded Security part of JFROG for reporting the vulnerability in the If-Modified-Since header with line folding, and thanks to Marcus Wengelin for reporting the vulnerability in the Range header with a specially crafted pair of Range headers.
CVSS Scores
Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
None
Availability
None
Attack Vector
Network
Attack Complexity
Low
Authentication
None
Confidentiality
Partial
Integrity
None
Availability
Partial
* Common Vulnerability Scoring System
SSVC
  • Decision:Attend
Exploitation
None
Automatable
Yes
Tech. Impact
Partial
* Organization's Worst-case Scenario
Timeline
  • 2024-06-17 CVE Reserved
  • 2024-06-17 CVE Published
  • 2025-02-13 CVE Updated
  • 2025-05-19 EPSS Updated
  • ---------- Exploited in Wild
  • ---------- KEV Due Date
  • ---------- First Exploit
CWE
CAPEC
Affected Vendors, Products, and Versions
Vendor Product Version Other Status
Vendor Product Version Other Status <-- --> Vendor Product Version Other Status
Lighttpd
Search vendor "Lighttpd"
 Lighttpd
Search vendor "Lighttpd" for product "Lighttpd"
 <= 1.4.50
Search vendor "Lighttpd" for product "Lighttpd" and version " <= 1.4.50"
en
Affected