Linux Kernel KVM Port 0x80 Local Denial of Service Vulnerability
BID:35000
Info
Linux Kernel KVM Port 0x80 Local Denial of Service Vulnerability
| Bugtraq ID: | 35000 |
| Class: | Design Error |
| CVE: | |
| Remote: | No |
| Local: | Yes |
| Published: | May 11 2009 12:00AM |
| Updated: | May 19 2009 05:06PM |
| Credit: | Piotr Jaroszynski |
| Vulnerable: |
Linux kernel 2.6.29 .1 Linux kernel 2.6.29 Linux kernel 2.6.28 .9 Linux kernel 2.6.28 .8 Linux kernel 2.6.28 .6 Linux kernel 2.6.28 .5 Linux kernel 2.6.28 .3 Linux kernel 2.6.28 .2 Linux kernel 2.6.28 .1 Linux kernel 2.6.28 -rc7 Linux kernel 2.6.28 -rc5 Linux kernel 2.6.28 -rc1 Linux kernel 2.6.28 -git7 Linux kernel 2.6.28 Linux kernel 2.6.27 6 Linux kernel 2.6.27 3 Linux kernel 2.6.27 12 Linux kernel 2.6.27 .8 Linux kernel 2.6.27 .5 Linux kernel 2.6.27 .5 Linux kernel 2.6.27 .14 Linux kernel 2.6.27 .13 Linux kernel 2.6.27 .12 Linux kernel 2.6.27 -rc8-git5 Linux kernel 2.6.27 -rc8 Linux kernel 2.6.27 -rc6-git6 Linux kernel 2.6.27 -rc6 Linux kernel 2.6.27 -rc5 Linux kernel 2.6.27 -rc2 Linux kernel 2.6.27 -rc1 Linux kernel 2.6.27 Linux kernel 2.6.26 7 Linux kernel 2.6.26 .6 Linux kernel 2.6.26 .4 Linux kernel 2.6.26 .3 Linux kernel 2.6.26 -rc6 Linux kernel 2.6.26 Linux kernel 2.6.25 19 Linux kernel 2.6.25 .9 Linux kernel 2.6.25 .8 Linux kernel 2.6.25 .7 Linux kernel 2.6.25 .6 Linux kernel 2.6.25 .5 Linux kernel 2.6.25 .15 Linux kernel 2.6.25 .13 Linux kernel 2.6.25 .12 Linux kernel 2.6.25 .11 Linux kernel 2.6.25 .10 Linux kernel 2.6.25 Linux kernel 2.6.25 Linux kernel 2.6.24 .2 Linux kernel 2.6.24 .1 Linux kernel 2.6.24 -rc5 Linux kernel 2.6.24 -rc4 Linux kernel 2.6.24 -rc3 Linux kernel 2.6.24 -git13 Linux kernel 2.6.24 Linux kernel 2.6.23 .7 Linux kernel 2.6.23 .6 Linux kernel 2.6.23 .5 Linux kernel 2.6.23 .4 Linux kernel 2.6.23 .3 Linux kernel 2.6.23 .2 Linux kernel 2.6.23 -rc2 Linux kernel 2.6.23 -rc1 Linux kernel 2.6.23 Linux kernel 2.6.22 .8 Linux kernel 2.6.22 .7 Linux kernel 2.6.22 .6 Linux kernel 2.6.22 .5 Linux kernel 2.6.22 .4 Linux kernel 2.6.22 .3 Linux kernel 2.6.22 .2 Linux kernel 2.6.22 .17 Linux kernel 2.6.22 .16 Linux kernel 2.6.22 .15 Linux kernel 2.6.22 .14 Linux kernel 2.6.22 .13 Linux kernel 2.6.22 .12 Linux kernel 2.6.22 .11 Linux kernel 2.6.22 .1 Linux kernel 2.6.22 Linux kernel 2.6.21 4 Linux kernel 2.6.21 .7 Linux kernel 2.6.21 .6 Linux kernel 2.6.21 .3 Linux kernel 2.6.21 .2 Linux kernel 2.6.21 .1 Linux kernel 2.6.21 -git8 Linux kernel 2.6.21 Linux kernel 2.6.20 .9 Linux kernel 2.6.20 .8 Linux kernel 2.6.20 .5 Linux kernel 2.6.20 .4 Linux kernel 2.6.20 .15 Linux kernel 2.6.20 .1 Linux kernel 2.6.20 -git5 Linux kernel 2.6.20 Linux kernel 2.6.20 Linux kernel 2.6.19 .2 Linux kernel 2.6.19 .1 Linux kernel 2.6.19 Linux kernel 2.6.28.4 Linux kernel 2.6.26.1 Linux kernel 2.6.26-rc5-git1 Linux kernel 2.6.25.4 Linux kernel 2.6.25.3 Linux kernel 2.6.25.2 Linux kernel 2.6.25.1 Linux kernel 2.6.24.6 Linux kernel 2.6.24-rc2 Linux kernel 2.6.24-rc1 Linux kernel 2.6.23.14 Linux kernel 2.6.23.10 Linux kernel 2.6.23.1 Linux kernel 2.6.23.09 Linux kernel 2.6.22-rc7 Linux kernel 2.6.22-rc1 Linux kernel 2.6.21-RC6 Linux kernel 2.6.21-RC5 Linux kernel 2.6.21-RC4 Linux kernel 2.6.21-RC3 Linux kernel 2.6.21-RC3 Linux kernel 2.6.20.3 Linux kernel 2.6.20.2 Linux kernel 2.6.20.13 Linux kernel 2.6.20.11 Linux kernel 2.6.20-rc2 Linux kernel 2.6.20-2 |
| Not Vulnerable: |
Linux kernel 2.6.30 -rc6 |
Discussion
Linux Kernel KVM Port 0x80 Local Denial of Service Vulnerability
The Linux kernel is prone to a local denial-of-service vulnerability.
Attackers can exploit this issue to hang a host system, resulting in a denial-of-service condition.
Note that the vulnerability occurs only on certain AMD platforms.
Versions prior to Linux kernel 2.6.30-rc6 are vulnerable.
The Linux kernel is prone to a local denial-of-service vulnerability.
Attackers can exploit this issue to hang a host system, resulting in a denial-of-service condition.
Note that the vulnerability occurs only on certain AMD platforms.
Versions prior to Linux kernel 2.6.30-rc6 are vulnerable.
Exploit / POC
Linux Kernel KVM Port 0x80 Local Denial of Service Vulnerability
Attackers can use readily available tools to exploit this issue.
Attackers can use readily available tools to exploit this issue.
Solution / Fix
Linux Kernel KVM Port 0x80 Local Denial of Service Vulnerability
Solution:
Vendor fixes are available in the GIT repository. Please see the references for details.
Solution:
Vendor fixes are available in the GIT repository. Please see the references for details.
References
Linux Kernel KVM Port 0x80 Local Denial of Service Vulnerability
References:
References:
- KVM: SVM: Remove port 80 passthrough (Linux)
- Linux Kernel ChangeLog-2.6.30-rc6 (Linux)
- Linux kernel Homepage (kernel.org)