Executive Summary
Informations | |||
---|---|---|---|
Name | MDVSA-2014:214 | First vendor Publication | 2014-11-18 |
Vendor | Mandriva | Last vendor Modification | 2014-11-18 |
Severity (Vendor) | N/A | Revision | N/A |
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:L/AC:M/Au:N/C:P/I:P/A:P) | |||
---|---|---|---|
Cvss Base Score | 4.4 | Attack Range | Local |
Cvss Impact Score | 6.4 | Attack Complexity | Medium |
Cvss Expoit Score | 3.4 | Authentication | None Required |
Calculate full CVSS 2.0 Vectors scores |
Detail
Updated dbus packages fixes the following security issues: Alban Crequy and Simon McVittie discovered several vulnerabilities in the D-Bus message daemon: On 64-bit platforms, file descriptor passing could be abused by local users to cause heap corruption in dbus-daemon, leading to a crash, or potentially to arbitrary code execution (CVE-2014-3635). A denial-of-service vulnerability in dbus-daemon allowed local attackers to prevent new connections to dbus-daemon, or disconnect existing clients, by exhausting descriptor limits (CVE-2014-3636). Malicious local users could create D-Bus connections to dbus-daemon which could not be terminated by killing the participating processes, resulting in a denial-of-service vulnerability (CVE-2014-3637). dbus-daemon suffered from a denial-of-service vulnerability in the code which tracks which messages expect a reply, allowing local attackers to reduce the performance of dbus-daemon (CVE-2014-3638). dbus-daemon did not properly reject malicious connections from local users, resulting in a denial-of-service vulnerability (CVE-2014-3639). The patch issued by the D-Bus maintainers for CVE-2014-3636 was based on incorrect reasoning, and does not fully prevent the attack described as CVE-2014-3636 part A, which is repeated below. Preventing that attack requires raising the system dbus-daemon's RLIMIT_NOFILE (ulimit -n) to a higher value. By queuing up the maximum allowed number of fds, a malicious sender could reach the system dbus-daemon's RLIMIT_NOFILE (ulimit -n, typically 1024 on Linux). This would act as a denial of service in two ways: * new clients would be unable to connect to the dbus-daemon * when receiving a subsequent message from a non-malicious client that contained a fd, dbus-daemon would receive the MSG_CTRUNC flag, indicating that the list of fds was truncated; kernel fd-passing APIs do not provide any way to recover from that, so dbus-daemon responds to MSG_CTRUNC by disconnecting the sender, causing denial of service to that sender. This update also resolves the CVE-2014-7824 security vulnerability. |
Original Source
Url : http://www.mandriva.com/security/advisories?name=MDVSA-2014:214 |
CWE : Common Weakness Enumeration
% | Id | Name |
---|---|---|
67 % | CWE-399 | Resource Management Errors |
17 % | CWE-119 | Failure to Constrain Operations within the Bounds of a Memory Buffer |
17 % | CWE-17 | Code |
OVAL Definitions
Definition Id: oval:org.mitre.oval:def:26553 | |||
Oval ID: | oval:org.mitre.oval:def:26553 | ||
Title: | USN-2352-1 -- dbus vulnerabilities | ||
Description: | Several security issues were fixed in DBus. | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2352-1 CVE-2014-3635 CVE-2014-3636 CVE-2014-3637 CVE-2014-3638 CVE-2014-3639 | Version: | 3 |
Platform(s): | Ubuntu 14.04 Ubuntu 12.04 Ubuntu 10.04 | Product(s): | dbus |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:26771 | |||
Oval ID: | oval:org.mitre.oval:def:26771 | ||
Title: | DSA-3026-1 dbus - security update | ||
Description: | Alban Crequy and Simon McVittie discovered several vulnerabilities in the D-Bus message daemon. | ||
Family: | unix | Class: | patch |
Reference(s): | DSA-3026-1 CVE-2014-3635 CVE-2014-3636 CVE-2014-3637 CVE-2014-3638 CVE-2014-3639 | Version: | 3 |
Platform(s): | Debian GNU/Linux 7.0 Debian GNU/kFreeBSD 7.0 | Product(s): | dbus |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:26881 | |||
Oval ID: | oval:org.mitre.oval:def:26881 | ||
Title: | SUSE-SU-2014:1146-1 -- Security update for dbus-1 | ||
Description: | Various denial of service issues were fixed in the DBUS service. * CVE-2014-3638: dbus-daemon tracks whether method call messages expect a reply, so that unsolicited replies can be dropped. As currently implemented, if there are n parallel method calls in progress, each method reply takes O(n) CPU time. A malicious user could exploit this by opening the maximum allowed number of parallel connections and sending the maximum number of parallel method calls on each one, causing subsequent method calls to be unreasonably slow, a denial of service. * CVE-2014-3639: dbus-daemon allows a small number of "incomplete" connections (64 by default) whose identity has not yet been confirmed. When this limit has been reached, subsequent connections are dropped. Alban's testing indicates that one malicious process that makes repeated connection attempts, but never completes the authentication handshake and instead waits for dbus-daemon to time out and disconnect it, can cause the majority of legitimate connection attempts to fail. Security Issues: * CVE-2014-3638 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3638> * CVE-2014-3638 <http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2014-3638> | ||
Family: | unix | Class: | patch |
Reference(s): | SUSE-SU-2014:1146-1 CVE-2014-3638 CVE-2014-3639 | Version: | 3 |
Platform(s): | SUSE Linux Enterprise Server 11 SUSE Linux Enterprise Desktop 11 | Product(s): | dbus-1 |
Definition Synopsis: | |||
Definition Id: oval:org.mitre.oval:def:28196 | |||
Oval ID: | oval:org.mitre.oval:def:28196 | ||
Title: | DSA-3099-1 -- dbus security update | ||
Description: | Simon McVittie discovered that the fix for <a href="https://security-tracker.debian.org/tracker/CVE-2014-3636">CVE-2014-3636</a> was incorrect, as it did not fully address the underlying denial-of-service vector. This update starts the D-Bus daemon as root initially, so that it can properly raise its file descriptor count. | ||
Family: | unix | Class: | patch |
Reference(s): | DSA-3099-1 CVE-2014-7824 | Version: | 3 |
Platform(s): | Debian GNU/Linux 7.0 Debian GNU/kFreeBSD 7.0 | Product(s): | dbus |
Definition Synopsis: | |||
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Definition Id: oval:org.mitre.oval:def:28441 | |||
Oval ID: | oval:org.mitre.oval:def:28441 | ||
Title: | USN-2425-1 -- DBus vulnerability | ||
Description: | It was discovered that DBus incorrectly handled a large number of file descriptor messages. A local attacker could use this issue to cause DBus to stop responding, resulting in a denial of service. (<a href="http://people.ubuntu.com/~ubuntu-security/cve/CVE-2014-7824">CVE-2014-7824</a>) | ||
Family: | unix | Class: | patch |
Reference(s): | USN-2425-1 CVE-2014-7824 | Version: | 5 |
Platform(s): | Ubuntu 14.10 Ubuntu 14.04 Ubuntu 12.04 | Product(s): | dbus |
Definition Synopsis: | |||
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CPE : Common Platform Enumeration
Nessus® Vulnerability Scanner
Date | Description |
---|---|
2017-05-01 | Name : The remote EulerOS host is missing multiple security updates. File : EulerOS_SA-2016-1037.nasl - Type : ACT_GATHER_INFO |
2015-09-15 | Name : The remote device is missing a vendor-supplied security patch. File : f5_bigip_SOL17256.nasl - Type : ACT_GATHER_INFO |
2015-05-20 | Name : The remote SUSE host is missing one or more security updates. File : suse_SU-2014-1724-1.nasl - Type : ACT_GATHER_INFO |
2015-03-31 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2015-176.nasl - Type : ACT_GATHER_INFO |
2015-03-26 | Name : The remote Debian host is missing a security update. File : debian_DLA-87.nasl - Type : ACT_GATHER_INFO |
2015-01-02 | Name : The remote Fedora host is missing a security update. File : fedora_2014-17595.nasl - Type : ACT_GATHER_INFO |
2015-01-02 | Name : The remote Fedora host is missing a security update. File : fedora_2014-17570.nasl - Type : ACT_GATHER_INFO |
2014-12-22 | Name : The remote Fedora host is missing a security update. File : fedora_2014-16227.nasl - Type : ACT_GATHER_INFO |
2014-12-17 | Name : The remote Fedora host is missing a security update. File : fedora_2014-16147.nasl - Type : ACT_GATHER_INFO |
2014-12-15 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-3099.nasl - Type : ACT_GATHER_INFO |
2014-12-15 | Name : The remote Gentoo host is missing one or more security-related patches. File : gentoo_GLSA-201412-12.nasl - Type : ACT_GATHER_INFO |
2014-12-15 | Name : The remote Fedora host is missing a security update. File : fedora_2014-16243.nasl - Type : ACT_GATHER_INFO |
2014-11-28 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2425-1.nasl - Type : ACT_GATHER_INFO |
2014-11-20 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2014-691.nasl - Type : ACT_GATHER_INFO |
2014-11-20 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2014-690.nasl - Type : ACT_GATHER_INFO |
2014-11-19 | Name : The remote Mandriva Linux host is missing one or more security updates. File : mandriva_MDVSA-2014-214.nasl - Type : ACT_GATHER_INFO |
2014-11-12 | Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_c1930f45698211e480e1bcaec565249c.nasl - Type : ACT_GATHER_INFO |
2014-09-26 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2014-557.nasl - Type : ACT_GATHER_INFO |
2014-09-25 | Name : The remote openSUSE host is missing a security update. File : openSUSE-2014-558.nasl - Type : ACT_GATHER_INFO |
2014-09-23 | Name : The remote Ubuntu host is missing one or more security-related patches. File : ubuntu_USN-2352-1.nasl - Type : ACT_GATHER_INFO |
2014-09-19 | Name : The remote SuSE 11 host is missing one or more security updates. File : suse_11_dbus-1-140916.nasl - Type : ACT_GATHER_INFO |
2014-09-18 | Name : The remote FreeBSD host is missing a security-related update. File : freebsd_pkg_38242d513e5811e4ac2fbcaec565249c.nasl - Type : ACT_GATHER_INFO |
2014-09-17 | Name : The remote Debian host is missing a security-related update. File : debian_DSA-3026.nasl - Type : ACT_GATHER_INFO |
Alert History
Date | Informations |
---|---|
2016-06-02 09:37:44 |
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2014-11-21 13:25:15 |
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2014-11-18 21:30:21 |
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2014-11-18 21:22:48 |
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