PT-2017-12836
CVE-2017-12997
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Published
2017-09-10
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Updated
2024-06-15
Description by
CVSS 3.1
9.8
CriticalMetricsAV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Name of the Vulnerable Software and Affected Versions
tcpdump versions prior to 4.9.2
Description
The issue is related to a bug in the LLDP parser, which could cause an infinite loop due to a problem in the
lldp private 8021 print() function. This could potentially allow a remote attacker to obtain sensitive information by sending a specially crafted request, exploiting a buffer overread memory issue in the HNCP component.Recommendations
For versions prior to 4.9.2, update to version 4.9.2 or later to resolve the issue. As a temporary workaround, consider restricting access to the LLDP parser or the HNCP component to minimize the risk of exploitation.
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