The ICMP path MTU (PMTU) discovery feature in various...
Moderate severity
Unreviewed
Published
Apr 30, 2022
to the GitHub Advisory Database
•
Updated Jan 30, 2023
Description
Published by the National Vulnerability Database
Jun 2, 2001
Published to the GitHub Advisory Database
Apr 30, 2022
Last updated
Jan 30, 2023
The ICMP path MTU (PMTU) discovery feature in various UNIX systems allows remote attackers to cause a denial of service by spoofing "ICMP Fragmentation needed but Don't Fragment (DF) set" packets between two target hosts, which could cause one host to lower its MTU when transmitting to the other host.
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