Multiple vulnerabilities have been identified in Linux Kernel, which could be exploited by remote attackers or malicious users to cause a denial of service.
The first issue is caused by an error in the "utimensat()" system call that does not check file permissions when certain "UTIME_NOW" and "UTIME_OMIT" combinations are used, which could allow local attackers to modify file times of arbitrary files, possibly creating a denial of service condition.
The second vulnerability is caused by an error in the "ipip6_rcv()" [net/ipv6/sit.c] function when processing malformed packets, which could be exploited by remote attackers to cause a denial of service.
The third issue is caused by an error within the virtual address range checking of mmaped regions on the sparc architecture, which could allow local attackers to cause a denial of service.
Credits
Vulnerabilities reported by the vendor and Paul Marks.
ChangeLog
2008-05-15 : Initial release
2008-05-28 : Updated Description
Vulnerability Management
Subscribe to FrSIRT VNS and receive real-time e-mail and SMS alerts when new vulnerabilities, exploits, 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 or by email to updates@frsirt.com.
French
