Davin McCall dlogin Buffer Overflow Vulnerability
BID:4043
Info
Davin McCall dlogin Buffer Overflow Vulnerability
| Bugtraq ID: | 4043 |
| Class: | Boundary Condition Error |
| CVE: | |
| Remote: | No |
| Local: | Yes |
| Published: | Feb 05 2002 12:00AM |
| Updated: | Feb 05 2002 12:00AM |
| Credit: | Published in the dlogin Changelog. |
| Vulnerable: |
Davin McCall dlogin 1.0 a |
| Not Vulnerable: |
Davin McCall dlogin 1.0 b |
Discussion
Davin McCall dlogin Buffer Overflow Vulnerability
dlogin is a replacement for the Unix login utility, targetted at home users of Linux systems. It supports a variety of convenience features for local console users, including the ability to log onto additional virtual terminals without the need to reauthenticate, and allowing local console users to perform a variety of system tasks without the need to authenticate as root.
A vulnerability exists in some versions of dlogin. It is possible to overflow a buffer. While further details are not currently available, overflows may lead to stack corruption, and to eventual execution of arbitrary code.
dlogin is a replacement for the Unix login utility, targetted at home users of Linux systems. It supports a variety of convenience features for local console users, including the ability to log onto additional virtual terminals without the need to reauthenticate, and allowing local console users to perform a variety of system tasks without the need to authenticate as root.
A vulnerability exists in some versions of dlogin. It is possible to overflow a buffer. While further details are not currently available, overflows may lead to stack corruption, and to eventual execution of arbitrary code.
Exploit / POC
Davin McCall dlogin Buffer Overflow Vulnerability
Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
Currently the SecurityFocus staff are not aware of any exploits for this issue. If you feel we are in error or are aware of more recent information, please mail us at: [email protected] <mailto:[email protected]>.
Solution / Fix
Davin McCall dlogin Buffer Overflow Vulnerability
Solution:
Version 1.0b fixes this vulnerability:
Davin McCall dlogin 1.0 a
Solution:
Version 1.0b fixes this vulnerability:
Davin McCall dlogin 1.0 a
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Davin McCall dlogin-1.0b.tar.gz
http://freshmeat.net/redir/dlogin/21092/url_tgz/dlogin-1.0b.tar.gz