CVE-2017-14495
Memory leak 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 (memory consumption) via vectors
02 Description
Memory leak 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 (memory consumption) via vectors
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 85.40% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 99.7% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Important. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2017-10-02 21:00Z9 YR AGO
- Last updated
- 2024-08-05 19:27Z2 YR AGO
- Reserved
- 2017-09-15
- Assigning CNA
- mitre
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- Data version
- 5.1
- Document digest
- b148e9e9129db3fa65acaee1845eacdafe092a7ef2c52afd390a897135996f9d
05 Affected products
06 References
- www.securitytracker.com1039474http://www.securitytracker.com/id/1039474
- www.synology.comhttps://www.synology.com/support/security/Synology_SA_17_59_Dnsmasq
- www.debian.orgDSA-3989http://www.debian.org/security/2017/dsa-3989
- access.redhat.comhttps://access.redhat.com/security/vulnerabilities/3199382
- www.securityfocus.com101085http://www.securityfocus.com/bid/101085
- www.ubuntu.comUSN-3430-1http://www.ubuntu.com/usn/USN-3430-1
- www.securityfocus.com101977http://www.securityfocus.com/bid/101977
- www.kb.cert.orgVU#973527https://www.kb.cert.org/vuls/id/973527
- security.gentoo.orgGLSA-201710-27https://security.gentoo.org/glsa/201710-27
- www.ubuntu.comUSN-3430-2http://www.ubuntu.com/usn/USN-3430-2
- www.mail-archive.com[dnsmasq-discuss] 20171002 Announce: dnsmasq-2.78.https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.html
- access.redhat.comRHSA-2017:2836https://access.redhat.com/errata/RHSA-2017:2836
- nvidia.custhelp.comhttp://nvidia.custhelp.com/app/answers/detail/a_id/4561
- www.arubanetworks.comhttp://www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txt
- thekelleys.org.ukhttp://thekelleys.org.uk/gitweb/?p=dnsmasq.git%3Ba=commit%3Bh=51eadb692a5123b9838e5a68ecace3ac579a3a45
- www.exploit-db.com42945https://www.exploit-db.com/exploits/42945/
- thekelleys.org.ukhttp://thekelleys.org.uk/dnsmasq/CHANGELOG
- lists.opensuse.orgopenSUSE-SU-2017:2633http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html
- security.googleblog.comhttps://security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.html
- www.mail-archive.com[dnsmasq-discuss] 20171002 IMPORTANT SECURITY INFORMATION.https://www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/pdf/ssa-689071.pdf
07 Fixed in
Arch Linux
- dnsmasq Fixed in 2.78-1
Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.
Debian 12
- dnsmasq Fixed in 2.78-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- dnsmasq Fixed in 2.78-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- dnsmasq Fixed in 2.78-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 14.04 LTS
- dnsmasq Fixed in 2.68-1ubuntu0.2
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- dnsmasq Fixed in 2.75-1ubuntu0.16.04.3
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.