Executive Summary
| Informations | |||
|---|---|---|---|
| Name | CVE-2011-2778 | First vendor Publication | 2011-12-22 |
| Vendor | Cve | Last vendor Modification | 2012-01-19 |
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:H/Au:N/C:C/I:C/A:C) | |||
|---|---|---|---|
| Cvss Base Score | 7.6 | Attack Range | Network |
| Cvss Impact Score | 10 | Attack Complexity | High |
| Cvss Expoit Score | 4.9 | Authentication | None Required |
| Calculate full CVSS 2.0 Vectors scores | |||
Detail
| Multiple heap-based buffer overflows in Tor before 0.2.2.35 allow remote attackers to cause a denial of service (memory corruption) or possibly execute arbitrary code by (1) establishing a SOCKS connection to SocksPort or (2) leveraging a SOCKS proxy configuration. |
Original Source
| Url : http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2011-2778 |
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:15174 | |||
| Oval ID: | oval:org.mitre.oval:def:15174 | ||
| Title: | DSA-2363-1 tor -- buffer overflow | ||
| Description: | It was discovered that Tor, an online privacy tool, incorrectly computes buffer sizes in certain cases involving SOCKS connections. Malicious parties could use this to cause a heap-based buffer overflow, potentially allowing execution of arbitrary code. In Tor's default configuration this issue can only be triggered by clients that can connect to Tor's socks port, which listens only on localhost by default. In non-default configurations where Tor's SocksPort listens not only on localhost or where Tor was configured to use another socks server for all of its outgoing connections, Tor is vulnerable to a larger set of malicious parties. | ||
| Family: | unix | Class: | patch |
| Reference(s): | DSA-2363-1 CVE-2011-2778 | Version: | 5 |
| Platform(s): | Debian GNU/Linux 5.0 Debian GNU/Linux 6.0 Debian GNU/kFreeBSD 6.0 | Product(s): | tor |
| Definition Synopsis: | |||
| |||
CPE : Common Platform Enumeration
OpenVAS Exploits
| Date | Description |
|---|---|
| 2012-04-02 | Name : Fedora Update for tor FEDORA-2011-17248 File : nvt/gb_fedora_2011_17248_tor_fc16.nasl |
| 2012-02-12 | Name : Gentoo Security Advisory GLSA 201201-12 (Tor) File : nvt/glsa_201201_12.nasl |
| 2012-02-11 | Name : Debian Security Advisory DSA 2263-2 (movabletype-opensource) File : nvt/deb_2263_2.nasl |
| 2012-02-11 | Name : Debian Security Advisory DSA 2363-1 (tor) File : nvt/deb_2363_1.nasl |
Open Source Vulnerability Database (OSVDB)
| Id | Description |
|---|---|
| 77947 | Tor or/buffers.c buf_pullup() Function Data Repacking Remote Overflow |
Nessus® Vulnerability Scanner
| Date | Description |
|---|---|
| 2012-01-24 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201201-12.nasl - Type : ACT_GATHER_INFO |
| 2012-01-12 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-2363.nasl - Type : ACT_GATHER_INFO |
| 2012-01-11 | Name : The remote Fedora host is missing a security update. File : fedora_2011-17248.nasl - Type : ACT_GATHER_INFO |
Sources (Detail)
| Source | Url |
|---|---|
| CONFIRM | https://blog.torproject.org/blog/tor-02235-released-security-patches |
| DEBIAN | http://www.debian.org/security/2011/dsa-2363 |
Alert History
| Date | Informations |
|---|---|
| 2021-05-05 01:08:34 |
|
| 2021-05-04 12:14:50 |
|
| 2021-04-22 01:16:09 |
|
| 2020-05-23 01:44:56 |
|
| 2020-05-23 00:29:04 |
|
| 2016-04-26 20:54:12 |
|
| 2014-02-17 11:03:44 |
|
| 2013-05-10 23:04:00 |
|
