CVE-2008-5821

Apple Safari 3.2 - Denial of Service via Long ALINK Attribute

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 3 public exploits for CVE-2008-5821. PoCs published by Xss mAn, Pr0T3cT10n, Jeremy Brown.

AI-analyzed exploit summary This Perl script generates an HTML file with a malformed CSS style attribute that triggers a Denial of Service (DoS) in Safari 4.0.5 (531.22.7) when opened. The exploit leverages an excessively long 'alink' value to crash the browser.

Description

Memory leak in WebKit.dll in WebKit, as used by Apple Safari 3.2 on Windows Vista SP1, allows remote attackers to cause a denial of service (memory consumption and browser crash) via a long ALINK attribute in a BODY element in an HTML document.

Exploits (3)

exploitdb WORKING POC VERIFIED
by Xss mAn · perldoswindows
https://www.exploit-db.com/exploits/12408

This Perl script generates an HTML file with a malformed CSS style attribute that triggers a Denial of Service (DoS) in Safari 4.0.5 (531.22.7) when opened. The exploit leverages an excessively long 'alink' value to crash the browser.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Safari 4.0.5 (531.22.7)
No auth needed
Prerequisites: Perl interpreter · Ability to deliver the HTML file to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Pr0T3cT10n · phpdososx
https://www.exploit-db.com/exploits/32695

This exploit generates an HTML file with an excessively long 'alink' attribute in the body tag, triggering a denial-of-service (DoS) condition in Apple Safari on iOS 4.0.1. The vulnerability resides in the WebKit library, causing the browser to crash when the file is loaded.

Classification
Working Poc 100%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Apple Safari on iOS 4.0.1
No auth needed
Prerequisites: Ability to host or deliver the malicious HTML file to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC VERIFIED
by Jeremy Brown · perldososx
https://www.exploit-db.com/exploits/32694

This Perl script generates an HTML file that triggers a memory leak in Safari's WebKit library by creating an excessively long 'alink' attribute, leading to a denial-of-service condition.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Apple Safari 3.2 (WebKit) on Windows Vista, iOS 4.0.1
No auth needed
Prerequisites: None
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (4)

Core 4
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/47724
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/33080

Scores

EPSS 0.0392
EPSS Percentile 88.9%

Details

CWE
CWE-399
Status published
Products (1)
apple/safari 3.2
Published Jan 02, 2009
Tracked Since Feb 18, 2026