Description
Heap-based buffer overflow in the xjpegls.dll (aka JLS, JPEG-LS, or JPEG lossless) format plugin in XnView 1.99 and 1.99.1 allows remote attackers to execute arbitrary code via a crafted JLS image file.
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
- XnView 1.99.1 - '.JLS' File Decompression Heap Overflow EDB-21741 · dos · Oct 4, 2012
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
References
- 20121003 XnView JLS File Decompression Heap Overflow mailing-list
- http://www.reactionpenetrationtesting.co.uk/xnview-jls-heap.html
- 21741 exploit
- 50825 third-party-advisory
- xnview-jpegls-bo(79030) vdb-entry
- 85893 vdb-entry
- 55787 vdb-entry