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Linux Kernel Multiple Vulnerabilities
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Secunia Advisory:
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SA36707
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Release Date:
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2009-09-14
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Last Update:
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2009-12-03
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Popularity:
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1,494 views
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Critical:
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Less critical
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Impact:
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Privilege escalation
DoS
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Where:
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From local network
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Solution Status:
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Vendor Patch
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| OS: | Linux Kernel 2.6.x
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Secunia CVSS-2 Score:
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| Advisory Content (Page 1 of 3) | [ 1 ] [ 2 ] [ 3 ] | |
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Description:
Some vulnerabilities have been reported in the Linux Kernel, which can be exploited by malicious, local users to cause a DoS (Denial of Service) and potentially gain escalated privileges, and by malicious people to cause a DoS.
1) A vulnerability is caused due to a memory leak when handling certain AppleTalk-IP datagrams. This can be exploited to cause a DoS due to memory exhaustion by e.g. sending a large amount of specially crafted AppleTalk-IP datagrams.
Successful exploitation requires that the appletalk and ipddp modules are loaded and attached to the same interface.
2) NULL pointer dereference errors exist within certain r128 IOCTL handlers when the CCE state is not properly initialised. This can be exploited to e.g. crash the kernel by sending specially crafted IOCTLs to the driver.
3) An error within the "update_cr8_intercept()" function in arch/x86/kvm/x86.c can be exploited to cause a NULL pointer dereference via the "-no-kvm-irqchip" option.
4) An integer overflow within the "kvm_dev_ioctl_get_supported_cpuid()" function in arch/x86/kvm/x86.c can be exploited to e.g. cause a crash by sending a specially crafted "KVM_GET_SUPPORTED_CPUID" IOCTL.
Note: This may affect 32bit systems only.
Change Page:
[ 1 ] [ 2 ] [ 3 ]
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
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