CVE-2010-0295

lighttpd < 1.4.26 and 1.5.x - Denial of Service via Slow Request Memory Consumption

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2010-0295. PoCs published by Li Ming.

AI-analyzed exploit summary This script exploits a denial-of-service vulnerability in lighttpd by launching multiple slow HTTP requests concurrently, causing the server to hang. It uses a separate C program (slow_client) to send requests slowly, overwhelming the server.

Description

lighttpd before 1.4.26, and 1.5.x, allocates a buffer for each read operation that occurs for a request, which allows remote attackers to cause a denial of service (memory consumption) by breaking a request into small pieces that are sent at a slow rate.

Exploits (1)

exploitdb WORKING POC VERIFIED
by Li Ming · bashdoslinux
https://www.exploit-db.com/exploits/33591

This script exploits a denial-of-service vulnerability in lighttpd by launching multiple slow HTTP requests concurrently, causing the server to hang. It uses a separate C program (slow_client) to send requests slowly, overwhelming the server.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: lighttpd (versions affected by CVE-2010-0295)
No auth needed
Prerequisites: Access to the slow_client binary · Network connectivity to the target lighttpd server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (19)

Core 19
Core References
Issue Tracking x_refsource_confirm
http://redmine.lighttpd.net/issues/2147
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/38403
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0172
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/39765
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041307.html
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/56038
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041264.html
Third Party Advisory vendor-advisory x_refsource_debian
http://www.debian.org/security/2010/dsa-1987
Exploit, Patch vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/38036
Mailing List mailing-list x_refsource_mlist
http://www.openwall.com/lists/oss-security/2010/02/01/8
Mailing List, Third Party Advisory vendor-advisory x_refsource_fedora
http://lists.fedoraproject.org/pipermail/package-announce/2010-May/041296.html
Third Party Advisory vendor-advisory x_refsource_gentoo
http://security.gentoo.org/glsa/glsa-201006-17.xml

Scores

EPSS 0.1211
EPSS Percentile 95.6%

Details

CWE
CWE-399
Status published
Products (50)
lighttpd/lighttpd 1.0.2
lighttpd/lighttpd 1.0.3
lighttpd/lighttpd 1.1.0
lighttpd/lighttpd 1.1.1
lighttpd/lighttpd 1.1.2
lighttpd/lighttpd 1.1.3
lighttpd/lighttpd 1.1.4
lighttpd/lighttpd 1.1.5
lighttpd/lighttpd 1.1.6
lighttpd/lighttpd 1.1.7
... and 40 more
Published Feb 03, 2010
Tracked Since Feb 18, 2026