Description
Heap-based buffer overflow in cygwin1.dll in Cygwin 1.5.7 and earlier allows context-dependent attackers to execute arbitrary code via a filename with a certain length, as demonstrated by a remote authenticated user who uses the SCP protocol to send a file to the Cygwin machine, and thereby causes scp.exe on this machine to execute, and then overwrite heap memory with characters from the filename. NOTE: it is also reported that a related issue might exist in 1.5.7 through 1.5.19.
References
- [cygwin-developers] 20071120 Re: cygwin1.dll up to 1.5.22 overflow mailing-list
- 20071124 [ISecAuditors Security Advisories] Cygwin buffer overflow due incorrect filename length check mailing-list
- [cygwin-developers] 20071120 Re: cygwin1.dll up to 1.5.22 overflow mailing-list
- 3406 third-party-advisory
- 26557 vdb-entry
- [cygwin-developers] 20071108 Re: cygwin1.dll up to 1.5.22 overflow mailing-list