|
|
Info |
Last Modified |
| 10 months ago |
|
|
|
|
Description |
A remote overflow exists in NetBSD. The hostname lookup code of the network information service (NIS) fails to check bounds on incoming match responses (IPv4 addresses) from NIS servers, resulting in a buffer overflow. With a specially crafted request, an attacker can hijack an account or gain elevated privileges, resulting in a loss of integrity.
|
|
Classification |
Location:
Remote/Network Access Required
Attack Type:
Input Manipulation
Impact:
Loss of Integrity
Exploit:
Exploit Unavailable
Disclosure:
OSVDB Verified
|
|
Technical |
This vulnerability is only present when the "hosts" line in /etc/nsswitch.conf has "nis" in it.
|
|
Solution |
Upgrade to version 1.4.3 or higher or 1.5 or higher, as it has been reported to fix this vulnerability. In addition, NetBSD has released a patch for some older versions. It is also possible to correct the flaw by implementing the following workaround: turn NIS hostname lookup off by editing /etc/nsswitch.conf and removing "nis" from the "hosts" line.
|
|
Products |
|
NetBSD
 |
1.3 |
1.3.x |
1.4 |
1.4.1 |
1.4.2 |
1.5_ALPHA |
|
|
|
|
Credit |
- Jun-ichiro itojun Hagino - itojun
 openbsd.org -
|
|
BlogsProvided by Technorati
|
None found at this time
|
|
|
