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CVE-2021-3393

MEDIUM
4.3
CVSS Score
Published: April 1, 2021 at 01:46 PM UTC
Updated: June 17, 2026 at 04:05 AM UTC
3 products affected across 2 vendorsEnterprise LinuxPostgreSQLSoftware Collections

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Severity
MEDIUM4.3
Exploit prediction
EPSS 1%

Description

An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11. A user having UPDATE permission but not SELECT permission to a particular column could craft queries which, under some circumstances, might disclose values from that column in error messages. An attacker could use this flaw to obtain information stored in a column they are allowed to write but not read.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

PostgreSQL· PostgreSQL
95%
v < 11.1112.0 ≤ v < 12.613.0 ≤ v < 13.211.1112.613.2
Affected range stops below 11.11, so it looks safe — our inference, not a vendor statement
Affected range stops below 12.6, so it looks safe — our inference, not a vendor statement
Affected range stops below 13.2, so it looks safe — our inference, not a vendor statement
Enterprise Linux· Red Hatrpm
95%
8.0
Software Collections· Red Hatrpm
95%
All versions

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

x_refsource_MISCIssue TrackingThird Party Advisory
Source: [email protected]
https://bugzilla.redhat.com/show_bug.cgi?id=1924005
Vendor Advisoryx_refsource_GENTOOThird Party Advisory
Source: [email protected]
https://security.gentoo.org/glsa/202105-32
x_refsource_CONFIRMThird Party Advisory
Source: [email protected]
https://security.netapp.com/advisory/ntap-20210507-0006/

CVSS

4.3MEDIUM[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-209

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