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| Package(s): | 2.4 kernel |
CVE #(s): | CAN-2003-0461
CAN-2003-0462
CAN-2003-0464
CAN-2003-0476
CAN-2003-0501
CAN-2003-0550
CAN-2003-0551
CAN-2003-0552
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| Created: | July 21, 2003 |
Updated: | December 23, 2003 |
| Description: |
Several security issues have been discovered affecting the Linux kernel:
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CAN-2003-0461: /proc/tty/driver/serial reveals the exact character
counts for serial links. This could be used by a local attacker to infer
password lengths and inter-keystroke timings during password entry.
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CAN-2003-0462: Paul Starzetz discovered a file read race condition
existing in the execve() system call, which could cause a local crash.
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CAN-2003-0464: A recent change in the RPC code set the reuse flag on
newly-created sockets. Olaf Kirch noticed that his could allow normal
users to bind to UDP ports used for services such as nfsd.
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CAN-2003-0476: The execve system call in Linux 2.4.x records the file
descriptor of the executable process in the file table of the calling
process, allowing local users to gain read access to restricted file
descriptors.
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CAN-2003-0501: The /proc filesystem in Linux allows local users to
obtain sensitive information by opening various entries in /proc/self
before executing a setuid program. This causes the program to fail to
change the ownership and permissions of already opened entries.
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CAN-2003-0550: The STP protocol is known to have no security, which
could allow attackers to alter the bridge topology. STP is now turned
off by default.
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CAN-2003-0551: STP input processing was lax in its length checking,
which could lead to a denial of service.
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CAN-2003-0552: Jerry Kreuscher discovered that the Forwarding table
could be spoofed by sending forged packets with bogus source addresses
the same as the local host.
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| Alerts: |
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