| Name | CVE-2009-3722 |
| Description | The handle_dr function in arch/x86/kvm/vmx.c in the KVM subsystem in the Linux kernel before 2.6.31.1 does not properly verify the Current Privilege Level (CPL) before accessing a debug register, which allows guest OS users to cause a denial of service (trap) on the host OS via a crafted application. |
| Source | CVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) |
| References | DSA-1962-1 |
| Debian Bugs | 557739 |
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs |
|---|---|---|---|---|---|---|
| kvm | source | lenny | 72+dfsg-5~lenny4 | DSA-1962-1 | ||
| kvm | source | (unstable) | 88+dfsg-2 | low | 557739 | |
| linux-2.6 | source | etch | (not affected) | |||
| linux-2.6 | source | lenny | (not affected) | |||
| linux-2.6 | source | (unstable) | 2.6.31-1 | low |
[etch] - linux-2.6 <not-affected> (issue introduced in 2.6.30-rc1)
[lenny] - linux-2.6 <not-affected> (issue introduced in 2.6.30-rc1)
http://bugzilla.redhat.com/531660
https://git.kernel.org/linus/0a79b009525b160081d75cef5dbf45817956acf2