|
Cisco IOS System Timers Potential Arbitrary Code Execution
|
|
Secunia Advisory:
|
SA17413
|
|
|
Release Date:
|
2005-11-03
|
|
Last Update:
|
2005-11-04
|
|
Popularity:
|
17,229 views
|
|
|
Critical:
|
Moderately critical
|
|
Impact:
|
Security Bypass
|
|
Where:
|
From remote
|
|
Solution Status:
|
Vendor Patch
|
|
| OS: | Cisco IOS 10.x
Cisco IOS 11.x
Cisco IOS 12.x
Cisco IOS R11.x
Cisco IOS R12.x
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities 
|
|
Description:
A vulnerability has been reported in Cisco IOS, which potentially can be exploited by malicious people to bypass certain security restrictions.
The vulnerability is caused due to an error in validating whether certain system memory has been corrupted by a heap-based buffer overflow before the internal operating system timers execute code from the affected memory area. This can potentially be exploited to execute arbitrary code in conjunction with some other heap-based buffer overflow vulnerability.
The vulnerability has been reported to affect all Cisco products that run Cisco IOS Software.
Note: The vendor has reported that the vulnerability was fixed as a result of continued research related to the demonstration of an exploit for the IPv6 vulnerability.
For more information:
SA16272
Solution:
Fixes are available for IOS 12.0, 12.1, 12.2, 12.3 and 12.4 (see patch matrix in vendor advisory).
http://www.cisco.com/warp/public/707/cisco-sa-20051102-timers.shtml#software
Provided and/or discovered by:
Reported by vendor.
Changelog:
2005-11-04: Added link to US-CERT vulnerability note.
Original Advisory:
http://www.cisco.com/warp/public/707/cisco-sa-20051102-timers.shtml
Other References:
SA16272:
http://secunia.com/advisories/16272/
US-CERT VU#562945:
http://www.kb.cert.org/vuls/id/562945
|
|
|
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.
|
