PT-2019-4781
CVE-2018-14882
·
Published
2019-09-30
·
Updated
2026-10-31
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 4.9.3
Description
The issue is related to a buffer over-read in the ICMPv6 parser of the tcpdump utility, which can lead to a denial of service. This can be exploited by a remote attacker. The buffer over-read is located in print-icmp6.c. Additionally, there is a heap-based buffer over-read related to aoe print in print-aoe.c and lookup emem in addrtoname.c.
Recommendations
For versions prior to 4.9.3, update to version 4.9.3 or later to resolve the issue.
As a temporary workaround, consider restricting access to the ICMPv6 parser and the affected functions
aoe print and lookup emem until a patch is available. Found an issue in the description? Have something to add? Feel free to write us 👾