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4.9
CVSSv2

CVE-2006-5755

Published: 31/12/2006 Updated: 13/02/2023
CVSS v2 Base Score: 4.9 | Impact Score: 6.9 | Exploitability Score: 3.9
VMScore: 437
Vector: AV:L/AC:L/Au:N/C:N/I:N/A:C
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Vulnerability Summary

Linux kernel prior to 2.6.18, when running on x86_64 systems, does not properly save or restore EFLAGS during a context switch, which allows local users to cause a denial of service (crash) by causing SYSENTER to set an NT flag, which can trigger a crash on the IRET of the next task.

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Vendor Advisories

Red Hat: Important: kernel security and bug fix update
Synopsis Important: kernel security and bug fix update Type/Severity Security Advisory: Important Topic Updated kernel packages that resolve several security issues and fixvarious bugs are now available for Red Hat Enterprise Linux 5This update has been rated as having important security impact by the RedH ...
Ubuntu Security Notice: linux-source-2.6.12⁄2.6.15⁄2.6.17 vulnerabilities
Mark Dowd discovered that the netfilter iptables module did not correcly handle fragmented IPv6 packets By sending specially crafted packets, a remote attacker could exploit this to bypass firewall rules This has has already been fixed for Ubuntu 610 in USN-395-1; this is the corresponding fix for Ubuntu 606(CVE-2006-4572) ...
Debian Security Advisories: DSA-1381-2 linux-2.6 -- several vulnerabilities
Several local vulnerabilities have been discovered in the Linux kernel that may lead to a denial of service or the execution of arbitrary code The Common Vulnerabilities and Exposures project identifies the following problems: CVE-2006-5755 The NT bit maybe leaked into the next task which can make it possible for local attackers to cause ...

References

NVD-CWE-Otherhttp://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.18-git13.loghttp://www.ubuntu.com/usn/usn-416-1http://secunia.com/advisories/24098http://www.securityfocus.com/archive/1/471457http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.18http://www.debian.org/security/2007/dsa-1381http://www.mandriva.com/security/advisories?name=MDKSA-2007:171http://www.securityfocus.com/bid/26060http://secunia.com/advisories/25691http://secunia.com/advisories/26620http://secunia.com/advisories/26994http://www.redhat.com/support/errata/RHSA-2008-0957.htmlhttp://secunia.com/advisories/32485https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A9554http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=658fdbef66e5e9be79b457edc2cbbb3add840aa9http://kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git%3Ba=commitdiff%3Bh=658fdbef66e5e9be79b457edc2cbbb3add840aa9https://access.redhat.com/errata/RHSA-2008:0957https://usn.ubuntu.com/416-1/https://nvd.nist.gov
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