CVE-2010-1029

Safari - Stack Consumption Denial of Service via CSS Selector

Title source: llm
STIX 2.1

Exploitation Summary

EIP tracks 2 public exploits for CVE-2010-1029. PoCs published by Rad L. Sneak, t12.

AI-analyzed exploit summary This exploit demonstrates a stack overflow vulnerability in Apple Safari 4.0.4 and Google Chrome 4.0.249 caused by an excessively long malformed string within a CSS style tag. The PoC triggers a denial-of-service (DoS) condition, crashing Safari or causing Chrome to display an 'Aw, Snap!' error.

Description

Stack consumption vulnerability in the WebCore::CSSSelector function in WebKit, as used in Apple Safari 4.0.4, Apple Safari on iPhone OS and iPhone OS for iPod touch, and Google Chrome 4.0.249, allows remote attackers to cause a denial of service (application crash) or possibly execute arbitrary code via a STYLE element composed of a large number of *> sequences.

Exploits (2)

exploitdb WORKING POC VERIFIED
by Rad L. Sneak · textdosmultiple
https://www.exploit-db.com/exploits/11567

This exploit demonstrates a stack overflow vulnerability in Apple Safari 4.0.4 and Google Chrome 4.0.249 caused by an excessively long malformed string within a CSS style tag. The PoC triggers a denial-of-service (DoS) condition, crashing Safari or causing Chrome to display an 'Aw, Snap!' error.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: Apple Safari 4.0.4, Google Chrome 4.0.249
No auth needed
Prerequisites: A vulnerable version of Safari or Chrome · Ability to deliver the malicious HTML file to the target
devstral-2 · analyzed Feb 16, 2026 Full analysis →
exploitdb WORKING POC
by t12 · pythondoshardware
https://www.exploit-db.com/exploits/11574

This Python script acts as a web server that serves a malformed HTML page with an excessively long CSS selector string to trigger a crash in iPhone's CSS parser. The author notes potential for remote code execution based on debug dump analysis.

Classification
Working Poc 90%
Attack Type
Dos
Complexity
Trivial
Reliability
Reliable
Target: iPhone (CSS parser, likely MobileSafari)
No auth needed
Prerequisites: Network access to target device · Target device must visit the malicious web server
devstral-2 · analyzed Feb 16, 2026 Full analysis →

References (9)

Core 9
Core References
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/56524
Third Party Advisory third-party-advisory x_refsource_secunia
http://secunia.com/advisories/43068
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/11574
Exploit exploit x_refsource_exploit-db
http://www.exploit-db.com/exploits/11567
Exploit vdb-entry x_refsource_bid
http://www.securityfocus.com/bid/38398
Third Party Advisory vdb-entry x_refsource_vupen
http://www.vupen.com/english/advisories/2011/0212
Third Party Advisory, VDB Entry vdb-entry x_refsource_xf
https://exchange.xforce.ibmcloud.com/vulnerabilities/56527
Third Party Advisory, VDB Entry vdb-entry signature x_refsource_oval
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A14301

Scores

EPSS 0.1030
EPSS Percentile 95.1%

Details

CWE
CWE-399
Status published
Products (3)
apple/safari 4.0.4
apple/safari
google/chrome 4.0.249.0
Published Mar 19, 2010
Tracked Since Feb 18, 2026