Mandriva Linux Security Advisory MDKSA-2006-151 - A number of vulnerabilities were discovered and corrected in the Linux 2.6 kernel.
680348d121ac7b42411ce9054f7d9429cb1c6b07902bddcdb5d5922ba71849e2Ubuntu Security Notice 281-1 - Multiple vulnerabilities have been discovered in the Linux 2.6 kernel. The sys_mbind() function did not properly verify the validity of the 'maxnod' argument. A local user could exploit this to trigger a buffer overflow, which caused a kernel crash. The SELinux module did not correctly handle the tracer SID when a process was already being traced. A local attacker could exploit this to cause a kernel crash. Al Viro discovered a local Denial of Service in the sysfs write buffer handling. By writing a block wit h a length exactly equal to the processor's page size to any writable file in /sys, a local attacker could cause a kernel crash. John Blackwood discovered a race condition with single-step debugging multiple processes at the same time. A local attacker could exploit this to crash the system. This only affects the amd64 platform. Marco Ivaldi discovered a flaw in the handling of the ID number of IP packets. This number was incremented after receiving unsolicited TCP SYN-ACK packets. A remote attacker could exploit this to conduct port scans with the 'Idle scan' method (nmap -sI), which bypassed intended port scan protections. Pavel Kankovsky discovered that the getsockopt() function, when called with an SO_ORIGINAL_DST argument, does not properly clear the returned structure, so that a random piece of kernel memory is exposed to the user. This could potentially reveal sensitive data like passwords or encryption keys. A buffer overflow was discovered in the USB Gadget RNDIS implementation. While creating a reply message, the driver did not allocate enough memory for the reply structure. A remote attacker could exploit this to cause a kernel crash. Alexandra Kossovsky discovered an invalid memory access in the ip_route_input() function. By using the 'ip' command in a particular way to retrieve multicast routes, a local attacker could exploit this to crash the kernel.
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