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Cisco IOS Line Printer Daemon Buffer Overflow Vulnerability
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Secunia Advisory:
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SA27169
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Release Date:
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2007-10-11
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Last Update:
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2007-10-16
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Critical:
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Not critical
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Impact:
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DoS
System access
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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: | Cisco IOS 12.x
Cisco IOS R12.x
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| | CVE reference: | CVE-2007-5381 (Secunia mirror)
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Description:
Andy Davis has reported a vulnerability in Cisco IOS, which potentially can be exploited by malicious people to cause a DoS (Denial of Service) or compromise a vulnerable system.
The vulnerability is caused due to a boundary error within the LPD service of Cisco IOS when printing an error message containing an overly long (more than 99 bytes) hostname. This can be exploited to cause a stack-based buffer overflow by e.g. connecting to the default LPD port (515/TCP).
Successful exploitation may allow the execution of arbitrary code but requires that the LPD daemon is enabled (disabled by default) and that the attacker can control the hostname of the router.
Solution:
Update to 12.2(18)SXF11, 12.4(16a), or 12.4(2)T6.
Provided and/or discovered by:
Andy Davis, IRM Plc.
Changelog:
2007-10-12: Added CVE reference.
2007-10-16: Added link to US-CERT.
Original Advisory:
IRM Plc.:
http://www.irmplc.com/index.php/155-Advisory-024
Cisco:
http://www.cisco.com/warp/public/707/cisco-sr-20071010-lpd.shtml
Other References:
US-CERT VU#230505:
http://www.kb.cert.org/vuls/id/230505
Extended Solution:
The "Extended Solution" section is available for Secunia customers only. Request a trial and get access to the Secunia Customer Area and Extended Secunia advisories.
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Please note: The information that this Secunia Advisory is based on comes from a third party unless stated otherwise.
Secunia collects, validates, and verifies all vulnerability reports issued by security research groups, vendors, and others.
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