USN-1177-1: QEMU vulnerability

Releases

• Ubuntu 11.04
• Ubuntu 10.10
• Ubuntu 10.04

Packages

• qemu-kvm - Machine emulator and virtualizer

Details

Andrew Griffiths discovered that QEMU did not correctly drop privileges
when using the 'runas' argument. Under certain circumstances a local
attacker could exploit this to escalate privileges.

Update instructions

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

Ubuntu 11.04

• qemu-kvm - 0.14.0+noroms-0ubuntu4.4

Ubuntu 10.10

• qemu-kvm - 0.12.5+noroms-0ubuntu7.10
• qemu-kvm-extras - 0.12.5+noroms-0ubuntu7.10
• qemu-kvm-extras-static - 0.12.5+noroms-0ubuntu7.10

Ubuntu 10.04

• qemu-kvm - 0.12.3+noroms-0ubuntu9.15
• qemu-kvm-extras - 0.12.3+noroms-0ubuntu9.15
• qemu-kvm-extras-static - 0.12.3+noroms-0ubuntu9.15

In general, a standard system update will make all the necessary changes.

References

• CVE-2011-2527