FreeBSD AIO library could allow an attacker to overwrite memory and gain elevated privileges
|bsd-aio-overwrite-memory (7693)||High Risk|
A vulnerability in the AIO library in FreeBSD could allow a local attacker to overwrite arbitrary memory locations. The AIO library implements the POSIX standard for asynchronous I/O and can be enabled in FreeBSD by compiling the kernel with the VFS_AIO option. In certain situations, scheduled AIO operations continue after an execve, which causes memory of the new process to be overwritten. A local attacker could create a malicious program that calls a suid program and use this vulnerability to overwrite arbitrary memory locations and gain elevated privileges on the system.
No remedy available as of May 1, 2013.
- BugTraq Mailing List, Mon Dec 10 2001 - 08:43:35 CST: AIO vulnerability.
- BID-3661: FreeBSD AIO Library Cross Process Memory Write Vulnerability
- CVE-2001-1185: Some AIO operations in FreeBSD 4.4 may be delayed until after a call to execve, which could allow a local user to overwrite memory of the new process and gain privileges.
- OSVDB ID: 2001: FreeBSD AIO Library Cross Process Memory Write
- FreeBSD FreeBSD 4.4
Dec 10, 2001
The information within this database may change without notice. Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. In no event shall the author/distributor (IBM Internet Security Systems X-Force) be held liable for any damages whatsoever arising out of or in connection with the use or spread of this information.
For corrections or additions please email ignore thisxforceignore this@ignore thisus.ignore thisibm.comignore this