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Fencer Vulns
critical 9.8

CVE-2020-14931 json

A stack-based buffer overflow in DMitry (Deepmagic Information Gathering Tool) 1.3a might allow remote WHOIS servers to execute arbitrary c…

published 2020-06-19 6 y ago modified 2026-06-17 4 mo ago also EUVD-2020-7067

cvss
9.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
2.6%
EPSS 2.6% chance of exploitation in 30 days, percentile 85%
public exploits
0
none known

Summary

A stack-based buffer overflow in DMitry (Deepmagic Information Gathering Tool) 1.3a might allow remote WHOIS servers to execute arbitrary code via a long line in a response that is mishandled by nic_format_buff.

Patch / fix

  • dmitry Debian 12 1.3a-1.2+deb12u1
  • dmitry Debian 14, Debian 13 1.3a-5

debian advisories DEBIAN-CVE-2020-14931

  • dmitry Ubuntu Pro 16.04 LTS 1.3a-1ubuntu0.16.04.1~esm1
  • dmitry Ubuntu Pro 18.04 LTS 1.3a-1ubuntu0.18.04.1~esm1
  • dmitry Ubuntu Pro 20.04 LTS 1.3a-1ubuntu0.20.04.1~esm1
  • dmitry Ubuntu Pro 22.04 LTS 1.3a-1.2ubuntu0.22.04.1~esm1
  • dmitry Ubuntu Pro 24.04 LTS 1.3a-3ubuntu0.1~esm1

ubuntu advisories UBUNTU-CVE-2020-14931

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

Exploit prediction

2.58% chance of exploitation in the next 30 days, higher than 85% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/jaygreig86/dmitry/issues/4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
NVD 3.1 9.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD 2.0 7.5 AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.