CVSS2
Attack Vector
NETWORK
Attack Complexity
MEDIUM
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:M/Au:N/C:P/I:P/A:P
EPSS
Percentile
99.6%
A vulnerability in the way Mozilla Network Security Services (NSS) handles the client master key may lead to execution of arbitrary code.
The SSLv2 protocol uses a client master key to generate all subsequent session keys. The validity of the client master key is determined during phase one of the SSL handshake. Mozilla NSS library contains a vulnerability in the way client master keys with invalid length values are handled that may result in a buffer overflow. According to the Mozilla Foundation Security Advisory (MFSA) 2007-06:
Servers that use NSS for the SSLv2 protocol can be exploited by a client that presents a “Client Master Key” with invalid length values in any of several fields that are used without adequate error checking. This can lead to a buffer overflow that presumably could be exploitable.
Note that this vulnerability may affect any application that uses the Mozilla NSS library.
A remote, unauthenticated attacker may be able to execute arbitrary code with the privileges of the user who is running the vulnerable application or cause a denial of service.
Apply an update
According to the Mozilla Foundation Security Advisory 2007-06, this vulnerability is addressed in Firefox 2.0.0.2, Firefox 1.5.0.10, SeaMonkey 1.0.8, and NSS 3.11.5.
Disable SSLv2
Disabling support for the SSLv2 protocol appears to prevent exploitation of this vulnerability. Instructions for disabling the SSLv2 protocol support in Firefox and Thunderbird can be found in the Mozilla Foundation Security Advisory 2007-06. SSLv2 is disabled by default in Firefox 2.
592796
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Updated: March 07, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to FEDORA-2007-308 and FEDORA-2007-309.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23592796 Feedback>).
Updated: April 05, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to glsa-200703-18.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23592796 Feedback>).
Updated: March 07, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to Mandriva Linux Security Advisory MDKSA-2007:052.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23377812 Feedback>).
Updated: February 27, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to Mozilla Foundation Security Advisory 2007-06.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23592796 Feedback>).
Updated: March 07, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to RHSA-2007-0079.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23592796 Feedback>).
Updated: March 07, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to SUSE-SA:2007:019.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23592796 Feedback>).
Updated: April 05, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to SSA:2007-066-04.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23592796 Feedback>).
Updated: April 05, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to Sun Alert Notification 102856.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23592796 Feedback>).
Updated: March 07, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to Ubuntu Security Notice USN-431-1.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23592796 Feedback>).
Updated: March 07, 2007
Affected
We have not received a statement from the vendor.
The vendor has not provided us with any further information regarding this vulnerability.
Refer to rPath Security Advisory: 2007-0040-3.
If you have feedback, comments, or additional information about this vulnerability, please send us [email](<mailto:[email protected]?Subject=VU%23592796 Feedback>).
Group | Score | Vector |
---|---|---|
Base | ||
Temporal | ||
Environmental |
This vulnerability was reported in Mozilla Foundation Security Advisory 2007-06. Mozilla credits iDefense with reporting this issue.
This document was written by Chris Taschner.
CVE IDs: | CVE-2007-0009 |
---|---|
Severity Metric: | 12.72 Date Public: |
labs.idefense.com/intelligence/vulnerabilities/display.php?id=483
secunia.com/advisories/24205/
secunia.com/advisories/24238/
secunia.com/advisories/24252/
secunia.com/advisories/24253/
secunia.com/advisories/24277/
secunia.com/advisories/24287/
secunia.com/advisories/24290/
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secunia.com/advisories/24320/
secunia.com/advisories/24327/
secunia.com/advisories/24328/
secunia.com/advisories/24333/
secunia.com/advisories/24343/
secunia.com/advisories/24384/
secunia.com/advisories/24389/
secunia.com/advisories/24406/
secunia.com/advisories/24410/
secunia.com/advisories/24455/
secunia.com/advisories/24456/
secunia.com/advisories/24457/
secunia.com/advisories/24703/
www.ciac.org/ciac/bulletins/r-164.shtml
www.mozilla.com/en-US/firefox/2.0.0.2/releasenotes/
www.mozilla.com/en-US/firefox/releases/1.5.0.10.html
www.mozilla.org/projects/seamonkey/releases/
www.mozilla.org/projects/security/pki/nss/
www.mozilla.org/projects/security/pki/nss/ssl/draft02.html
www.mozilla.org/security/announce/2007/mfsa2007-06.html
www.securityfocus.com/bid/22694