Short Name |
DNS:DNSMASQ-ADD-INT-UNDERFLOW |
---|---|
Severity |
Major |
Recommended |
No |
Category |
DNS |
Keywords |
DNSmasq add_pseudoheader Integer Underflow |
Release Date |
2020/04/23 |
Update Number |
3274 |
Supported Platforms |
idp-4.0+, isg-3.0+, j-series-9.5+, mx-11.4+, srx-12.1+, srx-branch-12.1+, vmx-17.4+, vsrx-12.1+, vsrx3bsd-18.2+ |
This signature detects attempts to exploit a known vulnerability against DNSmasq. A successful attack can lead to a buffer overflow and arbitrary remote code execution within the context of the DNSmasq.
Integer underflow in the add_pseudoheader function in dnsmasq before 2.78 , when the --add-mac, --add-cpe-id or --add-subnet option is specified, allows remote attackers to cause a denial of service via a crafted DNS request.