USN-2220-1: Linux kernel (EC2) vulnerabilities

Ubuntu Security Notice USN-2220-1

26th May, 2014

linux-ec2 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-ec2 - Linux kernel for EC2

Details

Matthew Daley reported an information leak in the floppy disk driver of the

Linux kernel. An unprivileged local user could exploit this flaw to obtain

potentially sensitive information from kernel memory. (CVE-2014-1738)

Matthew Daley reported a flaw in the handling of ioctl commands by the

floppy disk driver in the Linux kernel. An unprivileged local user could

exploit this flaw to gain administrative privileges if the floppy disk

module is loaded. (CVE-2014-1737)

A flaw was discovered in the Reliable Datagram Sockets (RDS) protocol

implementation in the Linux kernel for systems that lack RDS transports. An

unprivileged local user could exploit this flaw to cause a denial of

service (system crash). (CVE-2013-7339)

An error was discovered in the Reliable Datagram Sockets (RDS) protocol

stack in the Linux kernel. A local user could exploit this flaw to cause a

denial of service (system crash) or possibly have unspecified other impact.

(CVE-2014-2678)

Update instructions

The problem can be corrected by updating your system to the following package version:

Ubuntu 10.04 LTS:

linux-image-2.6.32-364-ec2 2.6.32-364.77

To update your system, please follow these instructions: http://bit.ly/1aJDvTw.

After a standard system update you need to reboot your computer to make

all the necessary changes.

ATTENTION: Due to an unavoidable ABI change the kernel updates have

been given a new version number, which requires you to recompile and

reinstall all third party kernel modules you might have installed. If

you use linux-restricted-modules, you have to update that package as

well to get modules which work with the new kernel version. Unless you

manually uninstalled the standard kernel metapackages (e.g. linux-generic,

linux-server, linux-powerpc), a standard system upgrade will automatically

perform this as well.

References

CVE-2013-7339, CVE-2014-1737, CVE-2014-1738, CVE-2014-2678

via Ubuntu Security Notices http://bit.ly/1noP0bu