Stay Secure with the Latest Linux Advisories

security advisorydenial of servicecritical

Ubuntu 10.04 LTS USN-1421-1 Critical: Kernel Flaws Cause Denial Of Service

Several security issues were fixed in the kernel.. =========================================================================Ubuntu Security Notice USN-1421-1 April 12, 2012 linux-lts-backport-maverick vulnerabilities ========================================================================= A security issue affects these releases of Ubuntu and its derivatives: - Ubuntu 10.04 LTS Summary: Several security issues were fixed in the kernel. Software Description: - linux-lts-backport-maverick: Linux kernel backport from Maverick Details: Sasha Levin discovered a flaw in the permission checking for device assignments requested via the kvm ioctl in the Linux kernel. A local user could use this flaw to crash the system causing a denial of service. (CVE-2011-4347) Stephan Bärwolf discovered a flaw in the KVM (kernel-based virtual machine) subsystem of the Linux kernel. A local unprivileged user can crash use this flaw to crash VMs causing a deny of service. (CVE-2012-0045) H. Peter Anvin reported a flaw in the Linux kernel that could crash the system. A local user could exploit this flaw to crash the system. (CVE-2012-1097) A flaw was discovered in the Linux kernel's cgroups subset. A local attacker could use this flaw to crash the system. (CVE-2012-1146) Update instructions: The problem can be corrected by updating your system to the following package versions: Ubuntu 10.04 LTS: linux-image-2.6.35-32-generic 2.6.35-32.68~lucid1 linux-image-2.6.35-32-generic-pae 2.6.35-32.68~lucid1 linux-image-2.6.35-32-server 2.6.35-32.68~lucid1 linux-image-2.6.35-32-virtual 2.6.35-32.68~lucid1 After a standard system update you need to reboot your computer to make all the necessary changes. References: https://ubuntu.com/security/notices/USN-1421-1 CVE-2011-4347, CVE-2012-0045, CVE-2012-1097, CVE-2012-1146 Package Information: https://launchpad.net/ubuntu/+source/linux-lts-backport-maverick/2.6.35-32.68~lucid1 . Ubuntu 18.04 LTS offersessential improvements in system security, addressing critical flaws in software packages to reduce the likelihood of unauthorized access.. ubuntu 10.04 LTS, kernel flaws, linux kernel, security updates, denial of service. . Severity: Critical. LinuxSecurity.com Team

Apr 12, 2012 •Critical Ubuntu