Description
Netscape Communicator 4.73 and earlier allows remote attackers to cause a denial of service or execute arbitrary commands via a JPEG image containing a comment with an illegal field length of 1.
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
- Netscape Communicator 4.x - JPEG-Comment Heap Overwrite EDB-20098 · dos · Jul 25, 2000 · verified
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- RHSA-2000:046 vendor-advisory
- 1503 vdb-entry
- TLSA2000017-1 vendor-advisory
- 20000724 JPEG COM Marker Processing Vulnerability in Netscape Browsers mailing-list
- 20000823 Security Hole in Netscape, Versions 4.x, possibly others vendor-advisory
- 20000801 MDKSA-2000:027-1 netscape update mailing-list
- 20000810 Conectiva Linux Security Announcement - netscape mailing-list