openSUSE Security Update: Hyper-V: Netlink source address validation allows DoS ______________________________________________________________________________
Announcement ID: openSUSE-SU-2012:1526-1 Rating: moderate References: #761200 Cross-References: CVE-2012-2669 Affected Products: openSUSE 12.2 openSUSE 12.1 ______________________________________________________________________________
An update that fixes one vulnerability is now available.
Description:
This update fixes the following issues for Hyper-V: The source code without this patch caused hv_kvp_daemon to exit when it processed a spoofed Netlink packet which has been sent from an untrusted local user. Now Netlink messages with a non-zero nl_pid source address are ignored and a warning is printed into the syslog.
This fixes the previous change from CVE-2012-2669.
Patch Instructions:
To install this openSUSE Security Update use YaST online_update. Alternatively you can run the command listed for your product:
- openSUSE 12.2:
zypper in -t patch openSUSE-2012-799
- openSUSE 12.1:
zypper in -t patch openSUSE-2012-799
To bring your system up-to-date, use "zypper patch".
Package List:
- openSUSE 12.2 (i586 x86_64):
hyper-v-4-4.8.1 hyper-v-debuginfo-4-4.8.1 hyper-v-debugsource-4-4.8.1
- openSUSE 12.1 (i586 x86_64):
hyper-v-4-11.1 hyper-v-debuginfo-4-11.1 hyper-v-debugsource-4-11.1
References:
http://support.novell.com/security/cve/CVE-2012-2669.html https://bugzilla.novell.com/761200