CVE-2015-4054

high
Published 2017-05-23 · Modified 2026-05-13
CVSS v3
7.5
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
VIR risk
7.5

Description

PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.

Predictions

Exploit likelihood
83%
Patch ETA

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

OS impact

OSVersionStatusFixed in
debian debianbookwormfixed1.5.5-1
debian debianbullseyefixed1.5.5-1
debian debianforkyfixed1.5.5-1
debian debiansidfixed1.5.5-1
debian debiantrixiefixed1.5.5-1

Application impact

VendorProductVersionsFixed
pgbouncerpgbouncer{"endIncluding":"1.5.4"}

References

CWEs

CWE-476

💬 Discuss CVE-2015-4054 on VIR Community →

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

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