CVE-2015-3165

Double free vulnerability in PostgreSQL before 9.0.20, 9.1.x before 9.1.16, 9.2.x before 9.2.11, 9.3.x before 9.3.7, and 9.4.x before 9.4.2 allows remote attackers to cause a denial of service (crash) by closing an SSL session at a time when the authentication timeout will expire during the session shutdown sequence.

Published: 2015-05-28 Last update: 2026-05-06 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2015-3165 is rated Moderate Risk (48.1/100): CVSS Medium severity, with high exploitation likelihood (EPSS 8.33%, 92th percentile). EPSS ranks this CVE among the most likely to be exploited in the near term. High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2015-3165

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-05-13 9.71% 8.33% -1.38%
2 2026-01-28 8.53% 9.71% +1.18%
3 2025-12-28 — 8.53% —

Full EPSS history (18 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2015-3165

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.3 2.0 MEDIUM
AV:N/AC:M/Au:N/C:N/I:N/A:P Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:N)
No authentication is required.
Confidentiality impact (C:N)
No confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:P)
Partial availability impact.
 8.6 2.9 [email protected]

Weakness enumeration for CVE-2015-3165

OS Trackers for CVE-2015-3165

vendor priority summary link
gentoo normal CVE-2015-3165: 1 GLSA(s) (201507-20), 1 atom(s) (dev-db/postgresql); latest impact normal. https://bugs.gentoo.org/buglist.cgi?quicksearch=CVE-2015-3165
redhat medium — https://access.redhat.com/security/cve/CVE-2015-3165
ubuntu medium CVE-2015-3165 medium priority: Ubuntu including 4 source packages (postgresql-8.4, postgresql-9.1, postgresql-9.3, postgresql-9.4), 36 status rows across 9 suites (precise, trusty, upstream, utopic, vivid, wily, xenial, yakkety, zesty): DNE 25, released 9, ignored 1, needs-triage 1. https://ubuntu.com/security/CVE-2015-3165

NVD evaluator notes for CVE-2015-3165

Comment: <a href="http://cwe.mitre.org/data/definitions/415.html">CWE-415: Double Free</a>

Affected software / configurations for CVE-2015-3165

Vendor Product Version Raw CPE
canonical ubuntu_linux 12.04 cpe:2.3:o:canonical:ubuntu_linux:12.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 14.04 cpe:2.3:o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
canonical ubuntu_linux 14.10 cpe:2.3:o:canonical:ubuntu_linux:14.10:*:*:*:*:*:*:*
canonical ubuntu_linux 15.04 cpe:2.3:o:canonical:ubuntu_linux:15.04:*:*:*:*:*:*:*
debian debian_linux 7.0 cpe:2.3:o:debian:debian_linux:7.0:*:*:*:*:*:*:*
debian debian_linux 8.0 cpe:2.3:o:debian:debian_linux:8.0:*:*:*:*:*:*:*
apple mac_os_x_server 5.0.2 cpe:2.3:o:apple:mac_os_x_server:5.0.2:*:*:*:*:*:*:*
postgresql postgresql <= 9.0.19 cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
postgresql postgresql 9.1 cpe:2.3:a:postgresql:postgresql:9.1:*:*:*:*:*:*:*
postgresql postgresql 9.1.1 cpe:2.3:a:postgresql:postgresql:9.1.1:*:*:*:*:*:*:*
postgresql postgresql 9.1.2 cpe:2.3:a:postgresql:postgresql:9.1.2:*:*:*:*:*:*:*
postgresql postgresql 9.1.3 cpe:2.3:a:postgresql:postgresql:9.1.3:*:*:*:*:*:*:*
postgresql postgresql 9.1.4 cpe:2.3:a:postgresql:postgresql:9.1.4:*:*:*:*:*:*:*
postgresql postgresql 9.1.5 cpe:2.3:a:postgresql:postgresql:9.1.5:*:*:*:*:*:*:*
postgresql postgresql 9.1.6 cpe:2.3:a:postgresql:postgresql:9.1.6:*:*:*:*:*:*:*
postgresql postgresql 9.1.7 cpe:2.3:a:postgresql:postgresql:9.1.7:*:*:*:*:*:*:*
postgresql postgresql 9.1.8 cpe:2.3:a:postgresql:postgresql:9.1.8:*:*:*:*:*:*:*
postgresql postgresql 9.1.9 cpe:2.3:a:postgresql:postgresql:9.1.9:*:*:*:*:*:*:*
postgresql postgresql 9.1.10 cpe:2.3:a:postgresql:postgresql:9.1.10:*:*:*:*:*:*:*
postgresql postgresql 9.1.11 cpe:2.3:a:postgresql:postgresql:9.1.11:*:*:*:*:*:*:*
postgresql postgresql 9.1.12 cpe:2.3:a:postgresql:postgresql:9.1.12:*:*:*:*:*:*:*
postgresql postgresql 9.1.13 cpe:2.3:a:postgresql:postgresql:9.1.13:*:*:*:*:*:*:*
postgresql postgresql 9.1.14 cpe:2.3:a:postgresql:postgresql:9.1.14:*:*:*:*:*:*:*
postgresql postgresql 9.1.15 cpe:2.3:a:postgresql:postgresql:9.1.15:*:*:*:*:*:*:*
postgresql postgresql 9.2 cpe:2.3:a:postgresql:postgresql:9.2:*:*:*:*:*:*:*
postgresql postgresql 9.2.1 cpe:2.3:a:postgresql:postgresql:9.2.1:*:*:*:*:*:*:*
postgresql postgresql 9.2.2 cpe:2.3:a:postgresql:postgresql:9.2.2:*:*:*:*:*:*:*
postgresql postgresql 9.2.3 cpe:2.3:a:postgresql:postgresql:9.2.3:*:*:*:*:*:*:*
postgresql postgresql 9.2.4 cpe:2.3:a:postgresql:postgresql:9.2.4:*:*:*:*:*:*:*
postgresql postgresql 9.2.5 cpe:2.3:a:postgresql:postgresql:9.2.5:*:*:*:*:*:*:*
postgresql postgresql 9.2.6 cpe:2.3:a:postgresql:postgresql:9.2.6:*:*:*:*:*:*:*
postgresql postgresql 9.2.7 cpe:2.3:a:postgresql:postgresql:9.2.7:*:*:*:*:*:*:*
postgresql postgresql 9.2.8 cpe:2.3:a:postgresql:postgresql:9.2.8:*:*:*:*:*:*:*
postgresql postgresql 9.2.9 cpe:2.3:a:postgresql:postgresql:9.2.9:*:*:*:*:*:*:*
postgresql postgresql 9.2.10 cpe:2.3:a:postgresql:postgresql:9.2.10:*:*:*:*:*:*:*
postgresql postgresql 9.3 cpe:2.3:a:postgresql:postgresql:9.3:*:*:*:*:*:*:*
postgresql postgresql 9.3.1 cpe:2.3:a:postgresql:postgresql:9.3.1:*:*:*:*:*:*:*
postgresql postgresql 9.3.2 cpe:2.3:a:postgresql:postgresql:9.3.2:*:*:*:*:*:*:*
postgresql postgresql 9.3.3 cpe:2.3:a:postgresql:postgresql:9.3.3:*:*:*:*:*:*:*
postgresql postgresql 9.3.4 cpe:2.3:a:postgresql:postgresql:9.3.4:*:*:*:*:*:*:*
postgresql postgresql 9.3.5 cpe:2.3:a:postgresql:postgresql:9.3.5:*:*:*:*:*:*:*
postgresql postgresql 9.3.6 cpe:2.3:a:postgresql:postgresql:9.3.6:*:*:*:*:*:*:*
postgresql postgresql 9.4.0 cpe:2.3:a:postgresql:postgresql:9.4.0:*:*:*:*:*:*:*
postgresql postgresql 9.4.1 cpe:2.3:a:postgresql:postgresql:9.4.1:*:*:*:*:*:*:*

References for CVE-2015-3165

URL Tags
http://lists.apple.com/archives/security-announce/2015/Sep/msg00004.html Mailing List Third Party Advisory
http://rhn.redhat.com/errata/RHSA-2015-1194.html
http://rhn.redhat.com/errata/RHSA-2015-1195.html
http://rhn.redhat.com/errata/RHSA-2015-1196.html
http://www.debian.org/security/2015/dsa-3269 Third Party Advisory
http://www.debian.org/security/2015/dsa-3270 Third Party Advisory
http://www.postgresql.org/about/news/1587/ Vendor Advisory
http://www.postgresql.org/docs/9.0/static/release-9-0-20.html Release Notes
http://www.postgresql.org/docs/9.1/static/release-9-1-16.html Release Notes
http://www.postgresql.org/docs/9.2/static/release-9-2-11.html Release Notes
http://www.postgresql.org/docs/9.3/static/release-9-3-7.html Release Notes
http://www.postgresql.org/docs/9.4/static/release-9-4-2.html Release Notes
http://www.securityfocus.com/bid/74787 Third Party Advisory VDB Entry
http://www.ubuntu.com/usn/USN-2621-1 Vendor Advisory
https://security.gentoo.org/glsa/201507-20
https://support.apple.com/HT205219 Third Party Advisory
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