December 9, 2009

Ubuntu Security Notice 869-1: Linux kernel vulnerabilities

Article Source Ubuntu Security Notices
December 9, 2009, 5:05 pm
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David Ford discovered that the IPv4 defragmentation routine did not correctly handle oversized packets. A remote attacker could send specially crafted traffic that would cause a system to crash, leading to a denial of service. (The fix was included in the earlier kernels from USN-864-1.) (CVE-2009-1298)
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Akira Fujita discovered that the Ext4 "move extents" ioctl did not correctly check permissions. A local attacker could exploit this to overwrite arbitrary files on the system, leading to root privilege escalation. (CVE-2009-4131)...
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