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CVE-2017-14493General(canonical / debian_linux)

LOWCVSS 9.8 · CRITICAL

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Stack-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 DHCPv6 request.

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1.0/ 10 priority

Sources & remediation

Patch / fix
Exploit / PoC references
Vendor / third-party advisories
Other references
Weakness type (CWE)
CWE-119

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • debian_linux
  • dnsmasq
  • enterprise_linux_desktop
  • enterprise_linux_server

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • General: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
canonicaldebianopensuseredhatthekelleys
Products
debian_linuxdnsmasqenterprise_linux_desktopenterprise_linux_serverenterprise_linux_workstationleapubuntu_linux

8 versions affected across 7 products

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-02-19: 1Technical Details · 2026-02-19: 102-19
Signal classification1 categories
General
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • tibane@t1b4n3
    General

    Finished a root cause analysis of CVE-2017-14493 in dnsmasq (DHCPv6 stack overflow). Moving from CTF exploitation to real-world vulnerability research. Next: exploit reliability + chaining with CVE-2017-14494. http://t1b4n3.github.io/post/RCA-CVE-2017-14493/

    Post summary

    The post presents a root‑cause analysis of dnsmasq’s CVE‑2017‑14493 stack overflow, discusses exploit reliability and chaining to CVE‑2017‑14494, but offers no patches, active‑exploitation evidence, or PoC details.

    0000034
    16 followersView on X
CPE platform detail12 entries

12 of 12 entries

PartVendorProductVersionTarget SWTarget HW
OScanonicalubuntu_linux14.04--
OScanonicalubuntu_linux16.04--
OScanonicalubuntu_linux17.04--
OSdebiandebian_linux7.0--
OSdebiandebian_linux7.1--
OSdebiandebian_linux9.0--
OSopensuseleap42.2--
OSopensuseleap42.3--
OSredhatenterprise_linux_desktop7.0--
OSredhatenterprise_linux_server7.0--
OSredhatenterprise_linux_workstation7.0--
Appthekelleysdnsmasq---

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