Signature Detail
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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+ |
DNS: DNSmasq add_pseudoheader Integer Underflow
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.
Extended Description
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.
Affected Products
- Canonical ubuntu_linux 14.04
- Canonical ubuntu_linux 16.04
- Canonical ubuntu_linux 17.04
- Debian debian_linux 7.0
- Debian debian_linux 7.1
- Debian debian_linux 9.0
- Google android 4.4.4
- Google android 5.0.2
- Google android 5.1.1
- Google android 6.0
- Google android 6.0.1
- Google android 7.0
- Google android 7.1.1
- Google android 7.1.2
- Google android 8.0
- Novell leap 42.2
- Novell leap 42.3
- Redhat enterprise_linux_desktop 7.0
- Redhat enterprise_linux_server 7.0
- Redhat enterprise_linux_workstation 7.0
- Thekelleys dnsmasq 2.77
References
- BugTraq: 101085
- CVE: CVE-2017-14496