CVE-2017-14496

Public Exploit

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.

Category

7.5
CVSS
Severity: High
CVSS 3.0 •
CVSS 2.0 •
EPSS 16.88% Top 10%
Vendor Advisory debian.org Vendor Advisory ubuntu.com Vendor Advisory gentoo.org Vendor Advisory ubuntu.com Vendor Advisory redhat.com Vendor Advisory opensuse.org Vendor Advisory org.uk
Affected: n/a n/a
Published at:
Updated at:

References

Link Tags
http://www.securitytracker.com/id/1039474 vdb entry third party advisory
https://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq
http://www.debian.org/security/2017/dsa-3989 third party advisory vendor advisory
https://access.redhat.com/security/vulnerabilities/3199382 issue tracking third party advisory
http://www.securityfocus.com/bid/101085 vdb entry third party advisory
http://www.ubuntu.com/usn/USN-3430-1 third party advisory vendor advisory
http://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=897c113fda0886a28a986cc6ba17bb93bd6cb1c7
http://www.securityfocus.com/bid/101977 vdb entry
https://www.kb.cert.org/vuls/id/973527 third party advisory us government resource
https://security.gentoo.org/glsa/201710-27 vendor advisory
http://www.ubuntu.com/usn/USN-3430-2 third party advisory vendor advisory
https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html mailing list
https://source.android.com/security/bulletin/2017-10-01 third party advisory
https://www.exploit-db.com/exploits/42946/ exploit vdb entry third party advisory
https://access.redhat.com/errata/RHSA-2017:2836 third party advisory patch vendor advisory
http://nvidia.custhelp.com/app/answers/detail/a_id/4561
http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt
http://thekelleys.org.uk/dnsmasq/CHANGELOG release notes vendor advisory
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html issue tracking mailing list third party advisory vendor advisory
https://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html third party advisory
https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html mailing list
https://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf

Frequently Asked Questions

What is the severity of CVE-2017-14496?
CVE-2017-14496 has been scored as a high severity vulnerability.
How to fix CVE-2017-14496?
To fix CVE-2017-14496, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2017-14496 being actively exploited in the wild?
It is possible that CVE-2017-14496 is being exploited or will be exploited in a near future based on public information. According to its EPSS score, there is a ~17% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
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