CVE-2009-2419

Apple Safari <4.0.1 - Use After Free

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 1 public exploit for CVE-2009-2419. PoCs published by SkyOut.

AI-analyzed exploit summary This exploit leverages a denial-of-service vulnerability in Apple Safari by attempting to execute a function `crashSafari()` which is not defined, leading to an exception that triggers a page reload and a prompt. The vulnerability arises from improper input sanitization, potentially causing the browser to crash.

Description

Use-after-free vulnerability in the servePendingRequests function in WebCore in WebKit in Apple Safari 4.0 and 4.0.1 allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a crafted HTML document that references a zero-length .js file and the JavaScript reload function. NOTE: some of these details are obtained from third party information.

Exploits (1)

exploitdb WORKING POC VERIFIED
by SkyOut · textdoswindows
https://www.exploit-db.com/exploits/33062

This exploit leverages a denial-of-service vulnerability in Apple Safari by attempting to execute a function `crashSafari()` which is not defined, leading to an exception that triggers a page reload and a prompt. The vulnerability arises from improper input sanitization, potentially causing the browser to crash.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Apple Safari 4.0 and 4.0.1
No auth needed
Prerequisites: Victim must visit a malicious webpage
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (9)

Core 9
Core References
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/43068
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0212
Vendor Advisory x_refsource_confirm
http://trac.webkit.org/changeset/44519
Third Party Advisory, VDB Entry vdb-entry x_refsource_osvdb
http://www.osvdb.org/55587
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/35555
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/51533
Vendor Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/33495

Scores

EPSS 0.0907
EPSS Percentile 94.6%

Details

CWE
CWE-399
Status published
Products (2)
apple/safari 4.0
apple/safari 4.0.1
Published Jul 09, 2009
Tracked Since Feb 18, 2026