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CVE-2012-4575

19
FAUCET Score

CVE-2012-4575 describes a denial-of-service vulnerability in PgBouncer 1.5.2 and earlier, affecting PostgreSQL database systems. An unauthenticated remote attacker can crash the PgBouncer daemon by submitting a request with an excessively long database name. This vulnerability has a CVSS score of 5.0, indicating a medium severity with low attack complexity and no active exploitation, known exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
1.5.2CPE matchmatch criteria
cpe:2.3:a:pgbouncer_project:pgbouncer:1.5.2:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
2.13%
Probability of exploitation in next 30 days
EPSS Percentile
80.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
This CVE's current EPSS score of 0.0213 is in the 69th percentile among its peer group of 23,684 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (4)

microsoftpatch availablevia msrc
Product: cm1 postgresql 12.7-1 on CBL Mariner 1.0Fixed in: 12.7-1
microsoftpatch availablevia msrc
Product: 19044-16820Fixed in: 12.7-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 x64Fixed in: 12.7-1
microsoftpatch availablevia msrc
Product: CBL Mariner 1.0 ARMFixed in: 12.7-1

Vendor Advisories (2)

microsoft2020-Sep/CVE-2012-4575

CVE-2012-4575

Sep 8, 2020
microsoft2012-Nov/CVE-2012-4575Moderate

The add_database function in objects.c in the pgbouncer pooler 1.5.2 for PostgreSQL allows remote attackers to cause a denial of service (daemon outage) via a long database name in a request.

Nov 2, 2012

References

bugs.debian.org / cgi-bin/bugreport.cgi
Third Party Advisory
git.postgresql.org / gitweb
openwall.com / lists/oss-security/2012/11/02/8
Mailing ListThird Party Advisory
bugzilla.redhat.com / show_bug.cgi
Issue TrackingThird Party Advisory
securityfocus.com / bid/56371
Third Party AdvisoryVDB Entry