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CVE-2017-14496Date: (C)2017-10-04   (M)2018-04-15


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 Score and Metrics +CVSS Score and Metrics -

CVSS V3 Severity:CVSS V2 Severity:
CVSS Score : 7.5CVSS Score : 7.8
Exploit Score: 3.9Exploit Score: 10.0
Impact Score: 3.6Impact Score: 6.9
 
CVSS V3 Metrics:CVSS V2 Metrics:
Attack Vector: NETWORKAccess Vector: NETWORK
Attack Complexity: LOWAccess Complexity: LOW
Privileges Required: NONEAuthentication: NONE
User Interaction: NONEConfidentiality: NONE
Scope: UNCHANGEDIntegrity: NONE
Confidentiality: NONEAvailability: COMPLETE
Integrity: NONE 
Availability: HIGH 
  
Reference:
BID-101085
BID-101977
SECTRACK-1039474
EXPLOIT-DB-42946
DSA-3989
GLSA-201710-27
RHSA-2017:2836
USN-3430-1
USN-3430-2
VU#973527
https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11665.html
https://www.mail-archive.com/dnsmasq-discuss@lists.thekelleys.org.uk/msg11664.html
http://nvidia.custhelp.com/app/answers/detail/a_id/4561
http://thekelleys.org.uk/dnsmasq/CHANGELOG
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git;a=commit;h=897c113fda0886a28a986cc6ba17bb93bd6cb1c7
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt
https://access.redhat.com/security/vulnerabilities/3199382
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
https://source.android.com/security/bulletin/2017-10-01
https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq
openSUSE-SU-2017:2633

CPE    17
cpe:/o:google:android:7.0
cpe:/o:debian:debian_linux:7.0
cpe:/o:google:android:6.0.1
cpe:/o:google:android:7.1.1
...
CWE    1
CWE-191
OVAL    9
oval:org.secpod.oval:def:1600780
oval:org.secpod.oval:def:1502020
oval:org.secpod.oval:def:113604
oval:org.secpod.oval:def:603116
...

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