SynopsisThe remote Ubuntu host is missing one or more security-related patches.
DescriptionA Denial of service vulnerability was reported in iptables' SCTP conntrack module. On computers which use this iptables module, a remote attacker could exploit this to trigger a kernel crash.
A buffer overflow has been discovered in the dvd_read_bca() function.
By inserting a specially crafted DVD, USB stick, or similar automatically mounted removable device, a local user could crash the machine or potentially even execute arbitrary code with full root privileges. (CVE-2006-2935)
The ftdi_sio driver for serial USB ports did not limit the amount of pending data to be written. A local user could exploit this to drain all available kernel memory and thus render the system unusable.
James McKenzie discovered a Denial of Service vulnerability in the NFS driver. When exporting an ext3 file system over NFS, a remote attacker could exploit this to trigger a file system panic by sending a specially crafted UDP packet. (CVE-2006-3468)
Wei Wang of McAfee Avert Labs discovered a buffer overflow in the sctp_make_abort_user() function of iptables' SCTP module. On computers which use this module, a local attacker could exploit this to execute arbitrary code with root privileges. (CVE-2006-3745)
Olof Johansson discovered that the kernel did not disable the 'HID0' bit on PowerPC 970 processors so that the ATTN instruction was enabled. A local user could exploit this to crash the kernel. This flaw only affects the powerpc architecture. (CVE-2006-4093)
The UDF file system does not handle extends larger than 1 GB, but did not check for this restriction on truncating files. A local user could exploit this to crash the kernel. (CVE-2006-4145).
Note that Tenable Network Security has extracted the preceding description block directly from the Ubuntu security advisory. Tenable has attempted to automatically clean and format it as much as possible without introducing additional issues.
SolutionUpdate the affected packages.