CVE-2017-14491
CRITICAL
9.8
CVSS Score
Published: October 2, 2017 at 09:00 PM UTC
Updated: June 17, 2026 at 01:06 AM UTC
28 products affected across 12 vendorsDebian LinuxUbuntu LinuxEnterprise Linux Desktop· also runs on 1 platform
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Severity
CRITICAL9.8
Exploit prediction
EPSS 86%
Description
Heap-based buffer overflow in dnsmasq before 2.78 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via a crafted DNS response.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 4.154.16 ≤ v < 4.16.13m4.17 ≤ v < 4.17.8m4.18 ≤ v ≤ 4.18.4.2f
Affected range stops below 4.16.13m, so it looks safe — our inference, not a vendor statement
Affected range stops below 4.17.8m, so it looks safe — our inference, not a vendor statement
6.3.1 ≤ v < 6.3.1.256.4.4.0 ≤ v < 6.4.4.166.5.0.0 ≤ v < 6.5.1.96.5.3.0 ≤ v < 6.5.3.36.5.4.0 ≤ v < 6.5.4.28.1.0.0 ≤ v < 8.1.0.4
Affected range stops below 6.3.1.25, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.4.4.16, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.5.1.9, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.5.3.3, so it looks safe — our inference, not a vendor statement
Affected range stops below 6.5.4.2, so it looks safe — our inference, not a vendor statement
Affected range stops below 8.1.0.4, so it looks safe — our inference, not a vendor statement
Ubuntu Linux· Canonicalrubygems
95%v < jimmy-al00ac00b135
Affected range stops below jimmy-al00ac00b135, so it looks safe — our inference, not a vendor statement
huawei-honor-v9-play (same device)
3.0 ≤ v < 3.10.0.55
Affected range stops below 3.10.0.55, so it looks safe — our inference, not a vendor statement
microsoft-windows (environment)
v < r21.6v < r24.2.2
Affected range stops below r21.6, so it looks safe — our inference, not a vendor statement
Affected range stops below r24.2.2, so it looks safe — our inference, not a vendor statement
nvidia-jetson-tk1 (environment) · nvidia-jetson-tx1 (environment)
Leap· openSUSEdrupal
95%95%
Enterprise Linux Server· Red Hatrubygems
95%Runs on — not affected
The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
- http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00003.html
- http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00004.html
- http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00005.html
- http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.html
- http://thekelleys.org.uk/dnsmasq/CHANGELOG
References (40)
Vendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00003.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00004.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00005.htmlVendor Advisoryx_refsource_SUSEMailing ListThird Party Advisory
Source: [email protected]
http://lists.opensuse.org/opensuse-security-announce/2017-10/msg00006.htmlx_refsource_CONFIRMThird Party Advisory
Source: [email protected]
http://nvidia.custhelp.com/app/answers/detail/a_id/4560x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
http://nvidia.custhelp.com/app/answers/detail/a_id/4561x_refsource_MISCExploitThird Party AdvisoryVDB Entry
Source: [email protected]
http://packetstormsecurity.com/files/144480/Dnsmasq-2-Byte-Heap-Based-Overflow.htmlx_refsource_CONFIRMRelease NotesVendor Advisory
Source: [email protected]
http://thekelleys.org.uk/dnsmasq/CHANGELOGCVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- HIGH
- Integrity
- HIGH
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-787
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