Ubuntu Security Notice 637-1 - It was discovered that there were multiple NULL-pointer function dereferences in the Linux kernel terminal handling code. A local attacker could exploit this to execute arbitrary code as root, or crash the system, leading to a denial of service. The do_change_type routine did not correctly validation administrative users. A local attacker could exploit this to block mount points or cause private mounts to be shared, leading to denial of service or a possible loss of privacy. Tobias Klein discovered that the OSS interface through ALSA did not correctly validate the device number. A local attacker could exploit this to access sensitive kernel memory, leading to a denial of service or a loss of privacy. Zoltan Sogor discovered that new directory entries could be added to already deleted directories. A local attacker could exploit this, filling up available memory and disk space, leading to a denial of service.
ca0426c0a769cfea0d004df111f7bc27965eadeb0ea4026d54fcf6f94868702fDebian Security Advisory 1630-1 - Several vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or arbitrary code execution.
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