Description
Apple Safari 4 Beta build 528.16 allows remote attackers to cause a denial of service (NULL pointer dereference and application crash) via a feeds: URI beginning with a (1) % (percent), (2) { (open curly bracket), (3) } (close curly bracket), (4) ^ (caret), (5) ` (backquote), or (6) | (pipe) character, followed by an & (ampersand) character.
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
Third-party code, not reviewed by us. Public PoCs are sometimes fake or contain malware. Read the code first and run it only in an isolated lab, against systems you are authorised to test.
Exploit-DB 1
- Apple Safari 4 - 'feeds:' URI Null Pointer Dereference Remote Denial of Service EDB-32817 · dos · Feb 25, 2009 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- safari-feedsuri-dos(48943) vdb-entry
- oval:org.mitre.oval:def:6066 vdb-entry signature
- 33909 vdb-entry
- 20090225 Apple Safari 4 Beta feeds: URI NULL Pointer Dereference Denial of Service Vulnerability mailing-list