|
 |
|
grsecurity RBAC User Transition Security Issue
|
|
|
|
|
Secunia Advisory:
|
SA29899
|
|
|
Release Date:
|
2008-04-22
|
|
Last Update:
|
2008-04-28
|
|
|
Critical:
|
Not critical
|
|
Impact:
|
Security Bypass
|
|
Where:
|
Local system
|
|
Solution Status:
|
Vendor Patch
|
|
| Software: | grsecurity 2.x
|
| | CVE reference: | CVE-2008-1940 (Secunia mirror)
|
|
|
Want to know the next time vulnerabilities are fixed in this product?
- Companies can be alerted via email and SMS! |
|
|
Description:
A security issue has been reported in grsecurity, which can be exploited by malicious, local users to bypass certain security restrictions.
The security issue is caused due to an error in the RBAC system when enforcing the "user_transition_deny" and "user_transition_allow" rules. This can be exploited to bypass the affected rules in calls to "sys_setfsuid()" and "sys_setfsgid()".
The security issue is reported in versions prior to 2.1.11-2.6.24.5 (2008-04-21) and 2.1.11-2.4.36.2 (2008-04-21).
Solution:
Update to 2.1.11-2.6.24.5 (2008-04-21) or 2.1.11-2.4.36.2 (2008-04-21).
http://www.grsecurity.org/download.php
Provided and/or discovered by:
Reported by the vendor.
Changelog:
2008-04-28: Added CVE reference.
Original Advisory:
http://www.grsecurity.org/news.php
|
|
|
|
|
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.
|
|
|
|
4 Related Secunia Security Advisories
|
|
|
1. grsecurity "expand_stack()" Privilege Escalation Vulnerability
|
|
2. grsecurity RBAC Admin Role Dropping Security Issue
|
|
3. grsecurity Unspecified RBAC System Privilege Escalation
|
|
4. grsecurity Unspecified Privilege Escalation Vulnerability
|
|
|
Send Feedback to Secunia
|
|
If you have new information regarding this Secunia advisory or a product in our database, please send it to us using either our web form or email us at vuln@secunia.com.
Ideas, suggestions, and other feedback are most welcome.
|
|
|
|
|
|
Secunia PSI
Scan | Patch | Track
Free Download
|
|
|
Secunia Poll
|
|
|
|
|
 |
|
|
Most Popular Advisories
|
|
|
|
|
|
