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
Thekelleys dnsmasq
Short Name
DNS:DNSMASQ-ADD-INT-UNDERFLOW
Severity
Major
Recommended
False
Recommended Action
None
Category
DNS
Keywords
CVE-2017-14496 DNSmasq Integer Underflow add_pseudoheader bid:101085
Release Date
04/23/2020
Supported Platforms
srx-branch-12.3
srx-19.3
srx-branch-19.3
vsrx3bsd-19.2
srx-branch-19.4
vsrx-19.4
mx-12.3
mx-19.4
vmx-19.4
mx-19.3
vsrx3bsd-19.4
srx-19.4
vsrx-12.3
vmx-19.3
vsrx-19.2
srx-12.3
Sigpack Version
3590
False Positive
Unknown
Vendors
Redhat
Thekelleys
Novell
Debian
Canonical
CVSS Score
7.8