Executive Summary
| Summary | |
|---|---|
| Title | New tor packages fix potential code execution |
| Informations | |||
|---|---|---|---|
| Name | DSA-2136 | First vendor Publication | 2010-12-21 |
| Vendor | Debian | Last vendor Modification | 2010-12-21 |
| Severity (Vendor) | N/A | Revision | 1 |
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:C/I:C/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 10 | Attack Range | Network |
| Cvss Impact Score | 10 | Attack Complexity | Low |
| Cvss Expoit Score | 10 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Willem Pinckaers discovered that Tor, a tool to enable online anonymity, does not correctly handle all data read from the network. By supplying specially crafted packets a remote attacker can cause Tor to overflow its heap, crashing the process. Arbitrary code execution has not been confirmed but there is a potential risk. In the stable distribution (lenny), this update also includes an update of the IP address for the Tor directory authority gabelmoo and addresses a weakness in the package's postinst maintainer script. For the stable distribution (lenny) this problem has been fixed in version 0.2.1.26-1~lenny+4. For the testing distribution (squeeze) and the unstable distribution (sid), this problem has been fixed in version 0.2.1.26-6. We recommend that you upgrade your tor packages. |
Original Source
| Url : http://www.debian.org/security/2010/dsa-2136 |
CWE : Common Weakness Enumeration
| % | Id | Name |
|---|---|---|
| 100 % | CWE-119 | Failure to Constrain Operations within the Bounds of a Memory Buffer |
OVAL Definitions
| Definition Id: oval:org.mitre.oval:def:18534 | |||
| Oval ID: | oval:org.mitre.oval:def:18534 | ||
| Title: | DSA-2136-1 tor - potential code execution | ||
| Description: | Willem Pinckaers discovered that Tor, a tool to enable online anonymity, does not correctly handle all data read from the network. By supplying specially crafted packets a remote attacker can cause Tor to overflow its heap, crashing the process. Arbitrary code execution has not been confirmed but there is a potential risk. | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2136-1 CVE-2010-1676 | Version: | 7 |
| Platform(s): | Debian GNU/Linux 5.0 | Product(s): | tor |
| Definition Synopsis: | |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2011-03-09 | Name : Gentoo Security Advisory GLSA 201101-02 (Tor) File : nvt/glsa_201101_02.nasl |
| 2011-02-05 | Name : Tor Unspecified Heap Based Buffer Overflow Vulnerability (Linux) File : nvt/secpod_tor_unspecified_bof_lin.nasl |
| 2011-02-05 | Name : Tor Unspecified Heap Based Buffer Overflow Vulnerability (Windows) File : nvt/secpod_tor_unspecified_bof_win.nasl |
| 2011-01-24 | Name : FreeBSD Ports: tor File : nvt/freebsd_tor6.nasl |
| 2011-01-04 | Name : Fedora Update for tor FEDORA-2010-19147 File : nvt/gb_fedora_2010_19147_tor_fc14.nasl |
| 2011-01-04 | Name : Fedora Update for tor FEDORA-2010-19159 File : nvt/gb_fedora_2010_19159_tor_fc13.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 69944 | Tor Unspecified Overflow DoS Tor is prone to an overflow condition. The program fails to properly sanitize user-supplied input resulting in a heap-based buffer overflow. Through unspecified vectors, a remote attacker can cause a daemon crash denial of service. It is also potentially possible, though not confirmed, for this vulnerability to allow the execute of arbitrary code. |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2011-01-17 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201101-02.nasl - Type : ACT_GATHER_INFO |
| 2011-01-03 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2136.nasl - Type : ACT_GATHER_INFO |
| 2010-12-30 | Name : The remote Fedora host is missing a security update. File : fedora_2010-19147.nasl - Type : ACT_GATHER_INFO |
| 2010-12-30 | Name : The remote Fedora host is missing a security update. File : fedora_2010-19159.nasl - Type : ACT_GATHER_INFO |
| 2010-12-23 | Name : The remote FreeBSD host is missing one or more security-related updates. File : freebsd_pkg_4bd33bc50cd611e0bfa4001676740879.nasl - Type : ACT_GATHER_INFO |
Alert History
| Date | Informations |
|---|---|
| 2014-02-17 11:29:46 |
|
