|
|
>> Linux Kernel Multiple Denial of Service and Security Bypass Vulnerabilities
|
|
Multiple vulnerabilities have been identified in Linux Kernel, which could be exploited by remote attackers or malicious users to cause a denial of service or bypass security restrictions.
The first flaw is due to a memory corruption error when syncing a malformed ReiserFS filesystem, which could be exploited by local attackers to crash a vulnerable system by mounting a malicious filesystem image, creating a denial of service condition.
The second issue is due to an error in the "nlmclnt_mark_reclaim()" [clntlock.c] function, which could be exploited by attackers to crash a vulnerable service.
The third flaw is due to errors within the "sys_get_robust_list()" and "sys_set_robust_list calls()", which could be exploited by attackers to crash a vulnerable service.
The fourth issue is due to an information leak in the "__block_prepare_write()" function, which could allow local users to read portions of unlinked files.
Other issues have been identified in the alignment check exception handling, squashfs, context switching, and smbfs mounting, which could allow malicious users to crash a vulnerable system/service or bypass security restrictions.
Credits
Vulnerability reported by LMH, Matthias Andree, Fabio Massimo Di Nitto, and Bill Allombert.
ChangeLog
2006-11-27 : Initial release
2006-12-13 : Updated Description
Vulnerability Management
Subscribe to VUPEN VNS and receive real-time e-mail and SMS alerts when new advisories or patches relevant to your systems and network configurations are available.
Feedback
If you have additional information or corrections for this security advisory please submit them via our contact form. | |
|
