Linux-ftpd-ssl vsprintf() function allows buffer overflow
| Linux-ftpd-ssl-vsprintf-bo (23016) |  High Risk |
Description:
Linux-ftpd-ssl is vulnerable to a buffer overflow caused by a vulnerability in the vsprintf() function. A remote attacker with the ability to create directories could create multiple levels of sub-directories containing long names and then execute an XPWD command to cause a stack-based buffer overflow. A remote attacker could exploit this vulnerability to gain access to the system.
Platforms Affected:
- Debian, Debian Linux 3.1
- Gentoo, Linux
- Linux-ftpd-ssl, Linux-ftpd-ssl 017 patch 0.3
Remedy:
For Debian GNU/Linux:
Refer to DSA-896-1 for patch, upgrade, or suggested workaround information. See References.
For Gentoo Linux:
Refer to Gentoo Linux Security Announcement GLSA 2005-11-11 for patch, upgrade, or suggested workaround information. See References.
Consequences:
Gain Access
References:
- Linux-ftpd-ssl Web site, freshmeat.net: Project details for linux-ftpd-ssl at http://freshmeat.net/projects/linux-ftpd-ssl/.
- BID-15343: Linux-FTPD-SSL FTP Server Remote Buffer Overflow Vulnerability
- CVE-2005-3524: Buffer overflow in the SSL-ready version of linux-ftpd (linux-ftpd-ssl) 0.17 allows remote attackers to execute arbitrary code by creating a long directory name, then executing the XPWD command.
- DSA-896: linux-ftpd-ssl -- buffer overflow
- GLSA-200511-11: linux-ftpd-ssl: Remote buffer overflow
- OSVDB ID: 20530: Linux-ftpd-ssl FTP Server Response Remote Overflow
- SA17465: Linux-ftpd-ssl FTP Server Response Buffer Overflow Vulnerability
- VUPEN/ADV-2005-2330: Linux-ftpd-ssl MKD and CWD Commands Format String Vulnerability
Reported:
Nov 08, 2005
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