CVE-2017-14495: canonical ubuntu_linux
CVSS: 7.5v3.0HighModified
AliasesALPINE-CVE-2017-14495UBUNTU-CVE-2017-14495DEBIAN-CVE-2017-14495
Published 02-10-2017Last modified 05-08-2024
Vulnerability summary
CVE-2017-14495 is a high (CVSS 7.5) vulnerability in canonical ubuntu_linux. EPSS estimates a 84.32% chance of exploitation in the next 30 days, higher than 99.6% of scored vulnerabilities. 1 public exploit is recorded.
CVSS score
7.5/10
010
High · v3.0 (NVD)EPSS score
84.32%
0%100%
Critical · 0.00 pp in 30 daysKEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1exploit-database
Advisory lineage
Upstream 0 · Downstream 9 · Related 6Timeline
- 02-10-2017PublishedVulnerability first disclosed.
- 05-08-2024Last modifiedVulnerability information updated.
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 involving DNS response creation.
CVSS metrics
5 scores · 4 sources · 2 versionsHigh 7.5Preferred score · NVD (NIST)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HSourcesAll 4 agree
- OSV · AlpineEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · UbuntuEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated7.5HighCVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Medium 5.0Preferred score · NVD (NIST)
AV:N/AC:L/Au:N/C:N/I:N/A:PSourcesSingle source
EPSS trend
Probability
84.32%
Chance of exploitation in the next 30 days
Percentile
100%
Versus all other CVEs
30-day change
0.00 pp
From 84.32% on 19-09-2026
19-09-202619-10-2026
EPSS score84.32%
Known exploited
Compare KEV catalogsNot in any of the 3 tracked catalogs.
Public exploits
1 foundDnsmasq < 2.78 - Lack of free() Denial of Service
Maturity: poc
Weaknesses
CWE · root causeAffected systems
Redhat3 products
Debian2 products
- dnsmasq< 2.78-1
- debian_linuxEOL7.0 | 7.1 | 9.0
Alpine1 product
- dnsmasq< 2.78-r0 | < 2.76-r1 | < 2.76-r2 | < 2.76-r5
Canonical1 product
- ubuntu_linuxEOL14.04 | 16.04 | 17.04
Thekelleys1 product
- dnsmasq≤ 2.77
Ubuntu1 product
- dnsmasq< 2.68-1ubuntu0.2 | < 2.75-1ubuntu0.16.04.3
6 vendors · 9 products
References
27 links- www.synology.com/support/security/Synology_SA_17_59_DnsmasqX Refsource CONFIRM
- access.redhat.com/security/vulnerabilities/3199382X Refsource CONFIRMIssue TrackingThird Party Advisory
Show all 27 references
- www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11665.htmlMailing ListX Refsource MLIST
- nvidia.custhelp.com/app/answers/detail/a_id/4561X Refsource CONFIRM
- www.arubanetworks.com/assets/alert/ARUBA-PSA-2017-005.txtX Refsource CONFIRM
- lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.htmlVendor AdvisoryX Refsource SUSEIssue TrackingMailing ListThird Party Advisory
- security.googleblog.com/2017/10/behind-masq-yet-more-dns-and-dhcp.htmlX Refsource MISCThird Party AdvisoryREPORT
- www.mail-archive.com/dnsmasq-discuss%40lists.thekelleys.org.uk/msg11664.htmlMailing ListX Refsource MLIST
- cert-portal.siemens.com/productcert/pdf/ssa-689071.pdfX Refsource CONFIRM