High severity · published Oct 3, 2017
CVE-2017-14496
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…
7.5
CVSS
68.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
None
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)68.4% · higher than 99% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
AN
Android · Google
4.4.4; 5.0.2; 5.1.1; 6.0; 6.0.1; 7.0; +3 more · source: NVD
DL
Debian Linux · Debian
7.0; 7.1; 9.0 · source: NVD
DN
Dnsmasq · Thekelleys
through 2.77 · source: NVD
EL
Enterprise Linux Desktop · Redhat
7.0 · source: NVD
EL
Enterprise Linux Server · Redhat
7.0 · source: NVD
EL
Enterprise Linux Workstation · Redhat
7.0 · source: NVD
LE
Leap · Novell
42.2; 42.3 · source: NVD
UL
Ubuntu Linux · Canonical
14.04; 16.04; 17.04 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2017-14496
CVE.org
https://www.cve.org/CVERecord?id=CVE-2017-14496
Issue Tracking
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html
nvidia.custhelp.com
http://nvidia.custhelp.com/app/answers/detail/a_id/4561
Release Notes
http://thekelleys.org.uk/dnsmasq/CHANGELOG
thekelleys.org.uk
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=897c113fda0886a28a986cc6ba17bb93bd6cb1c7
www.arubanetworks.com
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt
Third Party Advisory
http://www.debian.org/security/2017/dsa-3989
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