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[SA20225] Linux Kernel SNMP NAT Helper Denial of Service
TITLE:
Linux Kernel SNMP NAT Helper Denial of Service
SECUNIA ADVISORY ID:
SA20225
VERIFY ADVISORY:
link://[click]
CRITICAL:
Less critical
IMPACT:
DoS
WHERE:
From local network
OPERATING SYSTEM:
Linux Kernel 2.6.x
link://[click]
DESCRIPTION:
A vulnerability has been reported in the Linux Kernel, which can be
exploited by malicious people to cause a DoS (Denial of Service).
The vulnerability is caused due to some errors within the
"snmp_trap_decode()" function when handling certain SNMP packets.
This can be exploited to cause memory corruption due to incorrect
freeing of memory, which can potentially cause the system to crash.
Successful exploitation requires that the "ip_nat_snmp_basic" module
is loaded and that traffic NAT is enabled on port 161 or 162.
SOLUTION:
Update to version 2.6.16.18.
link://[click]
PROVIDED AND/OR DISCOVERED BY:
Reported by vendor.
ORIGINAL ADVISORY:
Kernel.org:
link://[click]
link://[click]
About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.
Subscribe:
link://[click]
Definitions: (Criticality, Where etc.)
link://[click]
Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.
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