Executive Summary
| Summary | |
|---|---|
| Title | New netkit-telnet packages really fix denial of service |
| Informations | |||
|---|---|---|---|
| Name | DSA-556 | First vendor Publication | 1970-01-01 |
| Vendor | Debian | Last vendor Modification | 1970-01-01 |
| Severity (Vendor) | N/A | Revision | 2 |
Security-Database Scoring CVSS v3
| Cvss vector : N/A | |||
|---|---|---|---|
| Overall CVSS Score | NA | ||
| Base Score | NA | Environmental Score | NA |
| impact SubScore | NA | Temporal Score | NA |
| Exploitabality Sub Score | NA | ||
| Calculate full CVSS 3.0 Vectors scores | |||
Security-Database Scoring CVSS v2
| Cvss vector : (AV:N/AC:L/Au:N/C:N/I:N/A:P) | |||
|---|---|---|---|
| Cvss Base Score | 5 | Attack Range | Network |
| Cvss Impact Score | 2.9 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| This is an update for DSA 556-1 which was intended to fix a denial of service situation in netkit-telnet but didn't. The update for unstable did fix the problem. For completeness below is the original advisory text: Michal Zalewski discovered a bug in the netkit-telnet server (telnetd) whereby a remote attacker could cause the telnetd process to free an invalid pointer. This causes the telnet server process to crash, leading to a straightforward denial of service (inetd will disable the service if telnetd is crashed repeatedly), or possibly the execution of arbitrary code with the privileges of the telnetd process (by default, the 'telnetd' user). For the unstable distribution (sid) this problem has been fixed in version 0.17-26. For the stable distribution (woody) this problem has been fixed in version 0.17-18woody2. We recommend that you upgrade your netkit-telnet-ssl package. |
Original Source
| Url : http://www.debian.org/security/1970/dsa-556 |
CPE : Common Platform Enumeration
| Type | Description | Count |
|---|---|---|
| Application | 1 |
OpenVAS Exploits
| Date | Description |
|---|---|
| 2008-01-17 | Name : Debian Security Advisory DSA 556-1 (netkit-telnet) File : nvt/deb_556_1.nasl |
| 2008-01-17 | Name : Debian Security Advisory DSA 556-2 (netkit-telnet) File : nvt/deb_556_2.nasl |
| 2008-01-17 | Name : Debian Security Advisory DSA 569-1 (netkit-telnet-ssl) File : nvt/deb_569_1.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 10531 | netkit-telnetd AYT Command Memory Handling Overflow A remote overflow exists in netkit-telnetd. The telnet daemon has an error within the processing of AYT ("Are You There") commands and may cause an invalid pointer to be freed resulting in a buffer overflow. With a specially crafted request, an attacker may cause a denial of servce or potentially execute arbitrary code resulting in a loss of integrity and/or availability. |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2006-01-15 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-101-1.nasl - Type : ACT_GATHER_INFO |
| 2004-11-10 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-556.nasl - Type : ACT_GATHER_INFO |
| 2004-11-10 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-569.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:33:28 |
|
