The Vigil@nce team watches public vulnerabilities impacting your computers, and then offers security solutions, a database and tools to fix them.
History of vulnerabilities analyzed by Vigil@nce:

security threat CVE-2008-2539

Sun Cluster: file reading via GFS

Synthesis of the vulnerability

A local attacker can read files deleted by Sun Cluster Global File System users.
Severity: 1/4.
Creation date: 02/06/2008.
Identifiers: 201341, 6312633, BID-29458, CVE-2008-2539, VIGILANCE-VUL-7865.
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Description of the vulnerability

The Global File System is used by Sun Cluster.

With Sun Cluster version 3.1, when a GFS filesystem is mounted on a UFS filesystem, a local attacker can read the content of deleted files.

A local attacker can therefore obtain sensitive information stored in files deleted by GFS users.
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threat CVE-2008-2098 CVE-2008-2099

VMware: code execution

Synthesis of the vulnerability

Two vulnerabilities impact VMware ACE, VMware Player and VMware Workstation.
Severity: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 30/05/2008.
Identifiers: 234208, 234214, BID-29443, CERTA-2008-AVI-283, CVE-2008-2098, CVE-2008-2099, VIGILANCE-VUL-7864, VMSA-2008-0008.
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Description of the vulnerability

Two vulnerabilities impact VMware ACE, VMware Player and VMware Workstation.

An attacker can create a buffer overflow in HGFS (Host Guest File System) used for shared folders. [severity:2/4; 234214, CERTA-2008-AVI-283, CVE-2008-2098]

On Windows hosts, if VMCI is enabled, a guest system can execute code in the context of the vmx process on the host. [severity:2/4; 234208, BID-29443, CVE-2008-2099]
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weakness alert 7863

Lotus Notes: denial of service via wordwrap

Synthesis of the vulnerability

An attacker can send an email with a very long line in order to create a denial of service in Lotus Notes.
Severity: 1/4.
Creation date: 30/05/2008.
Identifiers: SPR# EHET5X6Q5Z, swg21175611, VIGILANCE-VUL-7863.
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Description of the vulnerability

When Lotus Notes displays an email with lines longer than the display width, they are wrapped in several lines by the wordwrap feature.

However, if the line does not contain spaces, the duration of this operation is very long. For example, a line of 1.5 millions of characters hangs Lotus Notes during 30 minutes.

An attacker can therefore send an email with a very long line in order to create a denial of service in Lotus Notes.
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computer threat bulletin CVE-2008-2426

imlib2: buffer overflow via PNM/XPM

Synthesis of the vulnerability

An attacker can create a malicious PNM or XPM image leading to code execution when it is displayed by imlib2.
Severity: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 29/05/2008.
Identifiers: BID-29417, CVE-2008-2426, DSA-1594-1, FEDORA-2008-4842, FEDORA-2008-4871, FEDORA-2008-4950, MDVSA-2008:123, SUSE-SR:2008:018, VIGILANCE-VUL-7862.
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Description of the vulnerability

The imlib2 library handles the display and the conversion of images. It has two vulnerabilities.

A PNM image can create an overflow in the load() function of src/modules/loaders/loader_pnm.c. [severity:2/4]

An XPM image can create an overflow in the load() function of src/modules/loader_xpm.c. [severity:2/4]

An attacker can therefore create a malicious PNM or XPM image leading to code execution when it is displayed by imlib2.
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security announce CVE-2008-2359

Fedora 8: network administration via system-config-network

Synthesis of the vulnerability

On Fedora 8, an attacker with an access to the console can use system-config-network to alter network configuration.
Severity: 2/4.
Creation date: 29/05/2008.
Identifiers: 448557, BID-29416, CVE-2008-2359, FEDORA-2008-4633, VIGILANCE-VUL-7861.
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Description of the vulnerability

The system-config-network utility configures the network.

On Fedora 8, the /etc/security/console.apps/system-config-network configuration file does not limit the access to the utility (via "USER=root" for example).

An attacker with an access to the console can therefore use system-config-network to alter network configuration.
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computer threat note CVE-2008-2420

stunnel: access via OCSP

Synthesis of the vulnerability

An attacker can use a revoked certificate in order to access to stunnel.
Severity: 2/4.
Creation date: 29/05/2008.
Identifiers: BID-29309, CVE-2008-2420, FEDORA-2008-4531, FEDORA-2008-4579, FEDORA-2008-4606, JSA10852, MDVSA-2008:168, VIGILANCE-VUL-7860.
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Description of the vulnerability

The stunnel program is used to encapsulate streams in a SSL tunnel. Since version 4.16, stunnel implements OCSP (Online Certificate Status Protocol) to check the validity of X.509 certificates.

However, the crl_check() function of stunnel/src/verify.c does not check if the state is V_OCSP_CERTSTATUS_REVOKED. Certificates revoked in OCSP are thus still accepted.

An attacker owning a revoked certificate can therefore access to the service proposed by stunnel.
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threat bulletin CVE-2008-2054

CiscoWorks: code execution

Synthesis of the vulnerability

An attacker can use a malicious url in order to execute code on the CiscoWorks Common Services web server.
Severity: 3/4.
Creation date: 28/05/2008.
Identifiers: 105452, BID-29409, CERTA-2008-AVI-281, cisco-sa-20080528-cw, CSCsm77245, CVE-2008-2054, VIGILANCE-VUL-7859.
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Description of the vulnerability

The CiscoWorks Common Services suite is used in several Cisco products:
 - Cisco Unified Operations Manager (CUOM)
 - CiscoWorks QoS Policy Manager (QPM)
 - CiscoWorks LAN Management Solution (LMS)
 - Cisco Security Manager (CSM)
 - Cisco TelePresence Readiness Assessment Manager (CTRAM)

An attacker can use a malicious url in order to execute code on the CiscoWorks Common Services web server.
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vulnerability 7858

Apache, ASP.NET, SiteMinder, Tomcat: bypassing VBAAC

Synthesis of the vulnerability

The syntax of configuration files of some web servers can mislead the administrator.
Severity: 1/4.
Creation date: 28/05/2008.
Revision date: 03/06/2008.
Identifiers: VIGILANCE-VUL-7858.
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Description of the vulnerability

The HTTP protocol defines several methods: GET, POST, HEAD, PUT, etc. Access to some resources can be limited for some methods (VBAAC - Verb Based Authentication and Access Control).

However, the configuration syntax of certain web servers is unclear. For example for Tomcat, only indicated methods (for example GET and POST) are limited, whereas all other methods are allowed (an attacker can thus use HEAD). ASP.NET is impacted by the same problem.

An administrator can therefore unintentionally mis-configure his server.
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cybersecurity threat CVE-2008-1105

Samba: buffer overflow of receive_smb_raw

Synthesis of the vulnerability

An attacker can use an overflow of the Samba client or server in order to execute code.
Severity: 3/4.
Creation date: 28/05/2008.
Revision date: 02/06/2008.
Identifiers: 249086, 6707977, BA473, BID-29404, CERTA-2008-AVI-276, CVE-2008-1105, DSA-1590-1, emr_na-c01475657, FEDORA-2008-4679, FEDORA-2008-4724, FEDORA-2008-4797, HPSBUX02341, MDVSA-2008:108, RHSA-2008:0288-01, RHSA-2008:0289-01, RHSA-2008:0290-01, SSA:2008-149-01, SSRT080075, SUSE-SA:2008:026, VIGILANCE-VUL-7857, VMSA-2008-00011, VMSA-2008-00011.1, VMSA-2008-00011.2.
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Description of the vulnerability

The receive_smb_raw() function of lib/util_sock.c file reads a SMB packet. This function is used:
 - in the client when it connects to a server
 - in the nmbd server when it is configured as Master Browser
 - in the server when it receives a print request

However, this function uses an invalid value to check packet size. An attacker can therefore use long packets in order to create an overflow.

This vulnerability thus leads to code execution in the Samba client or server.
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security weakness CVE-2008-0891 CVE-2008-1672

OpenSSL: denials of service

Synthesis of the vulnerability

Two denials of service impact applications linked to OpenSSL 0.9.8f and 0.9.8g.
Severity: 2/4.
Number of vulnerabilities in this bulletin: 2.
Creation date: 28/05/2008.
Revision date: 29/05/2008.
Identifiers: BID-29405, CERTA-2008-AVI-277, CVE-2008-0891, CVE-2008-1672, FEDORA-2008-4723, FICORA #130450, MDVSA-2008:107, SSA:2008-210-08, VIGILANCE-VUL-7856, VU#520586, VU#661475.
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Description of the vulnerability

Two denials of service impact applications linked to OpenSSL 0.9.8f and 0.9.8g.

If OpenSSL is compiled with the "TLS server name" extension (with "./config tlsext", which is not the default case), an attacker can send a special packet (with server name equal to 0x00) to the SSL server in order to generate a double memory free. This error leads to a denial of service. [severity:2/4; CERTA-2008-AVI-277, CVE-2008-0891, VU#661475]

When a client connects to a SSL server, the server sends the "Server Key exchange" message if the algorithm is DHE_DSS, DHE_RSA or DH_anon (RFC 4346). However, if the server does not send this message, the SSL client dereferences a NULL pointer, and stops the application. [severity:2/4; CVE-2008-1672, VU#520586]
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