Multiple vulnerabilities have been identified in Linux Kernel, which could be exploited by remote attackers to bypass security checks, cause a denial of service or disclose sensitive information.
The first issue is caused by an error in the "sctp_new()" [net/netfilter/nf_conntrack_proto_sctp.c] function when creating a new connection with an unknown chunk type, which could be exploited by remote attackers to cause a NULL pointer dereference, creating a denial of service condition.
The second vulnerability is caused by an underflow error in the "cpuset_tasks_read()" [kernel/cpuset.c] function, which could be exploited by attackers to read kernel memory.
The third issue is caused by errors in the "extract_buf()" and "random_ioctl()" [drivers/char/random.c] functions when generating random numbers, which could potentially be exploited to bypass security restrictions.
Credits
Vulnerabilities reported by Vilmos Nebehaj and the vendor.
ChangeLog
2007-06-07 : Initial release
2007-07-10 : Updated Solution
Vulnerability Management
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