Re: [Users] New kernel vuln...

2009-09-16 Thread Josip Rodin
On Tue, Sep 01, 2009 at 11:56:55PM +0200, Josip Rodin wrote: AFAICT the linux-2.6.27-openvz has this obvious issue with mmap_min_addr due to security/Kconfig containing: config SECURITY bool Enable different security models depends on SYSFS !VE config

Re: [Users] New kernel vuln...

2009-09-02 Thread Konstantin Khorenko
Hi Scott, How about the latest RHEL4-based OpenVZ kernel? Is it vulnerable? No, it is not vulnerable simply because all vulnerable protocols are absent in the kernel (switched off in our configs). Are there any other advantages to the current RHEL5 kernel vs. the current RHEL4 kernel?

Re: [Users] New kernel vuln...

2009-09-01 Thread Josip Rodin
On Tue, Aug 18, 2009 at 04:31:12PM +0400, Konstantin Khorenko wrote: Hi all, just wanted to share the info: i checked this issue and found that 2.6.18-128.2.1.el5.028stab064.4 kernel (latest OVZ) is immune to the exploits on the issue described at

Re: [Users] New kernel vuln...

2009-08-18 Thread Konstantin Khorenko
Hi all, just wanted to share the info: i checked this issue and found that 2.6.18-128.2.1.el5.028stab064.4 kernel (latest OVZ) is immune to the exploits on the issue described at http://blog.cr0.org/2009/08/linux-null-pointer-dereference-due-to.html Exploits do not work both inside a Container

Re: [Users] New kernel vuln...

2009-08-18 Thread Michael Stauber
Hi Konstantin, Michael, could you please confirm that you were able to gain root on a kernel before 64.4? Confirmed. I didn't test 028stab064.4 (which was released just a few days prior to the anouncement of the exploit), but tested older kernels. With the following kernels I could get root

Re: [Users] New kernel vuln...

2009-08-18 Thread Scott Dowdle
Konstantin (or Kir), - Konstantin Khorenko khore...@openvz.org wrote: just wanted to share the info: i checked this issue and found that 2.6.18-128.2.1.el5.028stab064.4 kernel (latest OVZ) is immune to the exploits on the issue described at

[Users] New kernel vuln...

2009-08-17 Thread Michael H. Warfield
OpenVZ Kernel jockies... Anyone like to comment on if they think this could be exploited from a guest VM to execute code on the host node? This seems pretty serious and exploits are in the wild. http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-2692

Re: [Users] New kernel vuln...

2009-08-17 Thread Michael Stauber
Hi Michael, OpenVZ Kernel jockies... Anyone like to comment on if they think this could be exploited from a guest VM to execute code on the host node? CVE-2009-2692 I tested it on Friday with the exploit from Brad Spengler, which is mentioned on this page: