|
Network Security Services SSLv2 Processing Buffer Overflows
|
|
Secunia Advisory:
|
SA24253
|
|
|
Release Date:
|
2007-02-24
|
|
Last Update:
|
2007-03-08
|
|
Popularity:
|
8,822 views
|
|
|
Critical:
|
Highly critical
|
|
Impact:
|
System access
|
|
Where:
|
From remote
|
|
Solution Status:
|
Unpatched
|
|
| Software: | Network Security Services (NSS) 3.x
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities 
|
|
| CVE reference: | CVE-2007-0008
CVE-2007-0009
|
|
Description:
Two vulnerabilities have been reported in Network Security Services (NSS), which potentially can be exploited by malicious people to compromise a vulnerable system.
1) An integer underflow error when processing SSLv2 server messages can be exploited to cause a heap-based buffer overflow via a certificate with a public key too small to encrypt the "Master Secret".
2) An integer underflow error when processing SSLv2 client master keys can be exploited to cause a stack-based buffer overflow via specially crafted parameters during an SSLv2 handshake.
Successful exploitation of the vulnerabilities may allow execution of arbitrary code.
The vulnerabilities are reported in versions 3.10 and 3.11.3. Other versions may also be affected.
Solution:
The vulnerabilities will be fixed in version 3.11.5.
Provided and/or discovered by:
Discovered by regenrecht and reported via iDefense Labs.
Changelog:
2007-03-08: Added links to US-CERT.
Original Advisory:
Mozilla Foundation:
http://www.mozilla.org/security/announce/2007/mfsa2007-06.html
iDefense Labs:
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=482
http://labs.idefense.com/intelligence/vulnerabilities/display.php?id=483
Other References:
US-CERT VU#377812:
http://www.kb.cert.org/vuls/id/377812
US-CERT VU#592796:
http://www.kb.cert.org/vuls/id/592796
|
|
|
Track this Secunia Advisory
|
Customers of the Secunia Vulnerability Intelligence solutions will automatically receive updates when new information regarding this advisory is released.
Read more about our Vulnerability Intelligence solutions and what they can do for you and your company.
|
|
|
About this Secunia Advisory
|
Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
|
