Secunia Security Advisory - A weakness has been reported in Linux Kernel, which can be exploited by malicious, local users to disclose system information and cause a DoS (Denial of Service).
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TITLE:
Linux Kernel "compat_put_timeval()" Argument Passing Weakness
SECUNIA ADVISORY ID:
SA50790
VERIFY ADVISORY:
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http://secunia.com/advisories/50790/
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RELEASE DATE:
2012-10-04
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http://secunia.com/advisories/50790/#comments
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http://secunia.com/advisories/50790/
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DESCRIPTION:
A weakness has been reported in Linux Kernel, which can be exploited
by malicious, local users to disclose system information and cause a
DoS (Denial of Service).
The weakness is caused due to an error in net/socket.c when calling
the "compat_put_timeval()" function, which incorrectly passes
arguments resulting in kernel memory disclosure or system crash.
Successful exploitation may require an architecture that uses a
separate address space for user and kernel area (e.g. PA-RISC).
SOLUTION:
Fixed in the source code repository.
PROVIDED AND/OR DISCOVERED BY:
Mikulas Patocka, Red Hat.
ORIGINAL ADVISORY:
http://seclists.org/oss-sec/2012/q4/14
OTHER REFERENCES:
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http://secunia.com/vulnerability_intelligence/
DEEP LINKS:
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EXTENDED DESCRIPTION:
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EXTENDED SOLUTION:
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EXPLOIT:
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