Risk | Medium |
Patch available | YES |
Number of vulnerabilities | 2 |
CVE-ID | CVE-2022-41556 CVE-2022-37797 |
CWE-ID | CWE-401 CWE-476 |
Exploitation vector | Network |
Public exploit | N/A |
Vulnerable software Subscribe |
lighttpd Server applications / Web servers |
Vendor | lighttpd |
This security bulletin contains information about 2 vulnerabilities.
EUVDB-ID: #VU67733
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2022-41556
CWE-ID:
CWE-401 - Improper Release of Memory Before Removing Last Reference ('Memory Leak')
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform DoS attack on the target system.
The vulnerability exists due memory leak within the mod_fastcgi and mod_scgi modules when handling a large number of incorrect HTTP requests. A remote attacker can send multiple incorrect HTTP requests to the web server and perform denial of service attack.
MitigationInstall updates from vendor's website.
Vulnerable software versionslighttpd: 1.4.0 - 1.4.66
http://www.debian.org/security/2022/dsa-5243
Can this vulnerability be exploited remotely?
How the attacker can exploit this vulnerability?
Is there known malware, which exploits this vulnerability?
EUVDB-ID: #VU67731
Risk: Medium
CVSSv3.1:
CVE-ID: CVE-2022-37797
CWE-ID:
CWE-476 - NULL Pointer Dereference
Exploit availability: No
DescriptionThe vulnerability allows a remote attacker to perform a denial of service (DoS) attack.
The vulnerability exists due to a NULL pointer dereference error within the mod_wstunnel module when handling invalid HTTP requests. A remote attacker can send specially crafted HTTP requests to the affected web server and perform a denial of service (DoS) attack.
MitigationInstall update from vendor's website.
Vulnerable software versionslighttpd: 1.4.0 - 1.4.66
http://redmine.lighttpd.net/issues/3165
http://www.debian.org/security/2022/dsa-5243
Can this vulnerability be exploited remotely?
How the attacker can exploit this vulnerability?
Is there known malware, which exploits this vulnerability?