CVE-2017-8806

medium

Published 2017-11-13 · Modified 2026-05-13

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CVSS v3

5.5

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

5.5

Description

The Debian pg_ctlcluster, pg_createcluster, and pg_upgradecluster scripts, as distributed in the Debian postgresql-common package before 181+deb9u1 for PostgreSQL (and other packages related to Debian and Ubuntu), handled symbolic links insecurely, which could result in local denial of service by overwriting arbitrary files.

Predictions

Exploit likelihood

55%

Patch ETA

—

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 — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → 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.

OS impact

OS	Version	Status	Fixed in
debian	8.0	not-affected
debian	9.0	not-affected
ubuntu	14.04	not-affected
ubuntu	16.04	not-affected
ubuntu	17.04	not-affected
ubuntu	17.10	not-affected
debian	bookworm	fixed	`188`
debian	bullseye	fixed	`188`
debian	forky	fixed	`188`
debian	sid	fixed	`188`
debian	trixie	fixed	`188`

Application impact

Vendor	Product	Versions	Fixed
postgresql	postgresql	`-`

References

CWEs

CWE-59

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

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