CVE-2021-3393

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.

Category

4.3
CVSS
Severity: Medium
CVSS 3.1 •
CVSS 2.0 •
EPSS 0.09%
Vendor Advisory gentoo.org
Affected: n/a postgresql
Published at:
Updated at:

References

Link Tags
https://bugzilla.redhat.com/show_bug.cgi?id=1924005 issue tracking third party advisory
https://security.netapp.com/advisory/ntap-20210507-0006/ third party advisory
https://security.gentoo.org/glsa/202105-32 third party advisory vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-3393?
CVE-2021-3393 has been scored as a medium severity vulnerability.
How to fix CVE-2021-3393?
To fix CVE-2021-3393, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-3393 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2021-3393 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-3393?
CVE-2021-3393 affects n/a postgresql.
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