NULL Pointer Dereference Affecting pgbouncer package, versions <1.5.5-1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-ECHOLATEST-PGBOUNCER-20138264
- published25 Sept 2026
- disclosed23 May 2017
Introduced: 23 May 2017
CVE-2015-4054 (opens in a new tab)How to fix?
Upgrade Echo:latest pgbouncer to version 1.5.5-1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream pgbouncer package and not the pgbouncer package as distributed by Echo.
See How to fix? for Echo:latest relevant fixed versions and status.
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.
References
- https://advisory.echohq.com/cve/CVE-2015-4054
- http://www.openwall.com/lists/oss-security/2015/05/22/5
- http://www.securityfocus.com/bid/74751
- https://github.com/pgbouncer/pgbouncer/commit/74d6e5f7de5ec736f71204b7b422af7380c19ac5
- https://github.com/pgbouncer/pgbouncer/commit/edab5be6665b9e8de66c25ba527509b229468573
- https://github.com/pgbouncer/pgbouncer/issues/42
- https://pgbouncer.github.io/changelog.html#pgbouncer-15x
- https://security.gentoo.org/glsa/201701-24