|
Linux Kernel ptrace Local Privilege Escalation Vulnerability
|
|
Secunia Advisory:
|
SA26934
|
|
|
Release Date:
|
2007-09-24
|
|
Last Update:
|
2007-10-05
|
|
Popularity:
|
8,803 views
|
|
|
Critical:
|
Less critical
|
|
Impact:
|
Privilege escalation
|
|
Where:
|
Local system
|
|
Solution Status:
|
Vendor Patch
|
|
| OS: | Linux Kernel 2.4.x
Linux Kernel 2.6.x
|
|
|
Subscribe:
|
Instant alerts on relevant vulnerabilities 
|
|
| CVE reference: | CVE-2007-4573
CVE-2007-5087
|
|
Description:
Wojciech Purczynski has reported a vulnerability in the Linux kernel, which can be exploited by malicious, local users to gain escalated privileges.
The vulnerability is caused due to the kernel not zero-extending x86_64 registers after ptrace in the 32bit entry path in arch/x86_64/ia32/ia32entry.S on x86_64 platforms.
The vulnerability is reported in versions prior to 2.4.35.3 and 2.6.22.7.
Note: A problem in the ATM module, which can cause a kernel panic, has also been reported by Gilles Espinasse.
Solution:
Update to version 2.4.35.3 or 2.6.22.7.
Provided and/or discovered by:
Wojciech Purczynski
Changelog:
2007-09-24: Updated "Description".
2007-09-28: Added CVE reference.
2007-10-05: Added link to iSEC in "Original Advisory" section.
Original Advisory:
http://kernel.org/pub/linux/kernel/v2.4/ChangeLog-2.4.35.3
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.22.7
iSEC:
http://www.isec.pl/vulnerabilities/isec-0025-syscall-emulation.txt
|
|
|
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.
|
