CVE-2006-0744

Description

Linux kernel before 2.6.16.5 does not properly handle uncanonical return addresses on Intel EM64T CPUs, which reports an exception in the SYSRET instead of the next instruction, which causes the kernel exception handler to run on the user stack with the wrong GS.

Category

4.9
CVSS
Severity: Medium
CVSS 2.0 •
EPSS 0.11%
Vendor Advisory redhat.com Vendor Advisory redhat.com Vendor Advisory novell.com Vendor Advisory lwn.net Vendor Advisory novell.com Vendor Advisory mandriva.com Vendor Advisory ubuntu.com Vendor Advisory novell.com Vendor Advisory debian.org Vendor Advisory mandriva.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com Vendor Advisory secunia.com
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://support.avaya.com/elmodocs2/security/ASA-2006-161.htm
https://exchange.xforce.ibmcloud.com/vulnerabilities/25869 vdb entry
http://www.redhat.com/support/errata/RHSA-2006-0493.html vendor advisory
http://www.redhat.com/support/errata/RHSA-2006-0437.html vendor advisory
http://www.novell.com/linux/security/advisories/2006_42_kernel.html vendor advisory
http://secunia.com/advisories/19735 third party advisory vendor advisory
http://www.vupen.com/english/advisories/2006/2554 vdb entry
http://secunia.com/advisories/20716 third party advisory vendor advisory
http://lwn.net/Alerts/180820/ vendor advisory
http://secunia.com/advisories/21745 third party advisory vendor advisory
http://www.novell.com/linux/security/advisories/2006_47_kernel.html vendor advisory
http://secunia.com/advisories/21136 third party advisory vendor advisory
http://www.mandriva.com/security/advisories?name=MDKSA-2006:150 vendor advisory
http://secunia.com/advisories/19639 third party advisory vendor advisory
http://www.ubuntu.com/usn/usn-302-1 vendor advisory
http://secunia.com/advisories/21983 third party advisory vendor advisory
http://www.novell.com/linux/security/advisories/2006-05-31.html vendor advisory
http://www.vupen.com/english/advisories/2006/1390 vdb entry
http://support.avaya.com/elmodocs2/security/ASA-2006-180.htm
http://www.debian.org/security/2006/dsa-1103 vendor advisory
http://www.securityfocus.com/bid/17541 vdb entry
http://kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.16.5
http://www.vupen.com/english/advisories/2006/1475 vdb entry
http://www.osvdb.org/24639 vdb entry
http://secunia.com/advisories/21498 third party advisory vendor advisory
http://secunia.com/advisories/20237 third party advisory vendor advisory
http://secunia.com/advisories/20398 third party advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9732 vdb entry signature
http://www.mandriva.com/security/advisories?name=MDKSA-2006:086 vendor advisory
http://secunia.com/advisories/20157 third party advisory vendor advisory
http://secunia.com/advisories/21179 third party advisory vendor advisory
http://secunia.com/advisories/20914 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2006-0744?
CVE-2006-0744 has been scored as a medium severity vulnerability.
How to fix CVE-2006-0744?
To fix CVE-2006-0744, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2006-0744 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2006-0744 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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