DNS: Label Length Too Large Buffer Overflow
This protocol anomaly triggers when it detects a DNS request/reply with a label that exceeds the maximum length (63) specified in the RFC. This can indicate a buffer overflow attempt.
Extended Description
The server may fail to handle the exception condition, and cause a buffer overflow to occur.
Short Name
DNS:OVERFLOW:INVALID-LABEL-LEN
Severity
Major
Recommended
False
Recommended Action
Drop Packet
Category
DNS
Keywords
CVE-2014-3614 CVE-2017-13704 CVE-2017-14495 CVE-2020-11901 bid:69778
Release Date
04/22/2003
Supported Platforms
mx-19.3
vmx-19.3
vsrx-19.2
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-19.4
vsrx3bsd-19.4
srx-branch-19.4
vsrx-19.4
vmx-19.4
mx-19.4
srxevo-25.4
vsrx-26.2
srx-26.2
srx-branch-26.2
vsrx3bsd-26.2
mx-12.3
srx-12.3
srx-branch-12.3
vsrx-12.3
Sigpack Version
3580
False Positive
Unknown
CVSS Score
7.8
5.0
4.3