CVE-2017-9430

critical
Published 2017-06-05 ยท Modified 2026-05-13
CVSS v3
9.8
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS v4 NEW
โ€”
not yet in upstream
VIR risk
10.0

Description

Stack-based buffer overflow in dnstracer through 1.9 allows attackers to cause a denial of service (application crash) or possibly have unspecified other impact via a command line with a long name argument that is mishandled in a strcpy call for argv[0]. An example threat model is a web application that launches dnstracer with an untrusted name string.

Predictions

Exploit likelihood
97%
Patch ETA
โ€”

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or โ€” if you've already worked around this in production โ€” publish your fix to the community-verified tier.

โœš Propose a mitigation on Community โ†’ Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

Exploits

Public proof-of-concept code below. AS-IS, for defenders and authorised testing only.

Exploit-DB

EDB-42115 dos linux verified
FarazPajohan ยท 2017-06-05

DNSTracer 1.8.1 - Buffer Overflow (PoC)

Source code queued for fetch โ€” refresh in a moment.
EDB-42424 local linux
j0lama ยท 2017-08-03

DNSTracer 1.9 - Local Buffer Overflow

Source code queued for fetch โ€” refresh in a moment.

OS impact

debian Debian Affected 5 releases
VersionStatusFixed in
trixie Affected โ€”
sid Affected โ€”
forky Affected โ€”
bullseye Affected โ€”
bookworm Affected โ€”

Application impact

VendorProductVersionsFixed
dnstracer_projectdnstracer{"endIncluding":"1.9"}

References

CWEs

CWE-119

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.