Details

Amerigo Wang and Eric Sesterhenn discovered that the HFS and ext4

filesystems did not correctly check certain disk structures. If a user

were tricked into mounting a specially crafted filesystem, a remote

attacker could crash the system or gain root privileges. (CVE-2009-4020,

CVE-2009-4308)

It was discovered that FUSE did not correctly check certain requests.

A local attacker with access to FUSE mounts could exploit this to

crash the system or possibly gain root privileges. Ubuntu 9.10 was not

affected. (CVE-2009-4021)

It was discovered that KVM did not correctly decode certain guest

instructions. A local attacker in a guest could exploit this to

trigger high scheduling latency in the host, leading to a denial of

service. Ubuntu 6.06 was not affected. (CVE-2009-4031)

It was discovered that the OHCI fireware driver did not correctly

handle certain ioctls. A local attacker could exploit this to crash

the system, or possibly gain root privileges. Ubuntu 6.06 was not

affected. (CVE-2009-4138)

Tavis Ormandy discovered that the kernel did not correctly handle

O_ASYNC on locked files. A local attacker could exploit this to gain

root privileges. Only Ubuntu 9.04 and 9.10 were affected. (CVE-2009-4141)

Neil Horman and Eugene Teo discovered that the e1000 and e1000e

network drivers did not correctly check the size of Ethernet frames.

An attacker on the local network could send specially crafted traffic

to bypass packet filters, crash the system, or possibly gain root

privileges. (CVE-2009-4536, CVE-2009-4538)

It was discovered that "print-fatal-signals" reporting could show

arbitrary kernel memory contents. A local attacker could exploit

this, leading to a loss of privacy. By default this is disabled in

Ubuntu and did not affect Ubuntu 6.06. (CVE-2010-0003)

Olli Jarva and Tuomo Untinen discovered that IPv6 did not correctly

handle jumbo frames. A remote attacker could exploit this to crash the

system, leading to a denial of service. Only Ubuntu 9.04 and 9.10 were

affected. (CVE-2010-0006)

Florian Westphal discovered that bridging netfilter rules could be

modified by unprivileged users. A local attacker could disrupt network

traffic, leading to a denial of service. (CVE-2010-0007)

Al Viro discovered that certain mremap operations could leak kernel

memory. A local attacker could exploit this to consume all available

memory, leading to a denial of service. (CVE-2010-0291)