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Linux Kernel Potential Buffer Overflow and Denial of Service
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Secunia Advisory:
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SA17384
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Release Date:
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2005-11-01
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Last Update:
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2006-05-24
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Popularity:
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11,172 views
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Critical:
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Not critical
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Impact:
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Unknown
DoS
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Where:
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Local system
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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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| | CVE reference: | CVE-2005-3359
CVE-2005-3527
CVE-2005-3805
CVE-2005-3847
CVE-2006-1528
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Description:
Some vulnerabilities have been reported in the Linux Kernel. Two has an unknown impact, the others can potentially be exploited by malicious, local users to cause a DoS (Denial of Service)
1) A boundary error due to missing parameter validation in the "map_to_seg7()" function in "drivers/usb/input/map_to_7segment.h" of the Yealink driver may cause out-of-bound memory references.
2) A boundary error in "/drivers/i2c/i2c-core.c" when handling SMBus Block Write transactions may cause a buffer overflow.
3) An error exists in the handling of locking in the POSIX timer cleanup code when running on SMP systems. This may be exploited by local users to cause a DoS.
4) A race condition in the "do_coredump()" function in "/kernel/signal.c" can be exploited by malicious users to cause a DoS by triggering a core dump in one thread while another thread has a pending SIGSTOP.
5) An error within the implementation of module reference counting for loadable protocol modules of netfilter can be exploited by local users to crash the kernel by performing certain socket operations.
6) Incorrect setting of the VM_IO flag within the sg driver (drivers/scsi/sg.c) can be exploited by a local user to cause a DoS (crash) via a dio transfer to memory mapped (mmap) IO space.
Solution:
The vulnerabilities have been fixed in version 2.6.14-git4.
Vulnerabilities #3, #4, #5, and #6 have been fixed in version 2.6.14.
Provided and/or discovered by:
1-5) Reported by vendor.
6) Ahmed Teirelbar, Doug Gilbert.
Changelog:
2005-12-06: Added information about additional vulnerabilities. Updated "Description" and "Original Advisory" sections.
2005-12-07: Added CVE reference.
2006-03-13: Added information about additional vulnerability. Updated "Description" and "Original Advisory" sections.
2006-05-24: Added information about additional vulnerability. Updated "Description", "Original Advisory" and credit sections.
Original Advisory:
http://marc.theaimsgroup.com/?l=linux-scsi&m=112540053711489&w=2
Kernel.org:
http://www.kernel.org/pub/linux/kernel/v2.6/snapshots/patch-2.6.14-git4.log
http://www.kernel.org/git/?p=linux/ke...4a5ebb817532965d18b792d6d74afecfb0bcf
http://www.kernel.org/git/?p=linux/ke...0d1885981537ff3b8df6433951de6c9cb72cb
http://www.kernel.org/pub/linux/kernel/v2.6/ChangeLog-2.6.14
http://www.kernel.org/git/?p=linux/ke...407f0b668f5e4ebd5d13e1fb4306ba6427ead
http://www.kernel.org/git/?p=linux/ke...e05a67c343fa22f2ae1d3ca264e7f15c25eaf
http://www.kernel.org/git/?p=linux/ke...af59efd20990473d579b1d8d70bb120f0920c
http://www.kernel.org/git/?p=linux/ke...e71d72026ed4c6ba0fdfd7eebd865f4fd1415
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About this Secunia Advisory
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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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