Signature Detail
Short Name |
DNS:OVERFLOW:INVALID-LABEL-LEN |
|---|---|
Severity |
High |
Recommended |
No |
Recommended Action |
Drop Packet |
Category |
DNS |
Release Date |
2003/04/22 |
Update Number |
1213 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-9.4+, srx-9.2+, srx-branch-9.4+, vsrx-12.1+ |
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.
References