Medium severity · published Apr 1, 2021
CVE-2021-3393
An information leak was discovered in postgresql in versions before 13.2, before 12.6 and before 11.11
4.3
CVSS
1.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)1.2% · higher than 68% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
PO
PostgreSQL · PostgreSQL
before 11.11; 12.0 before 12.6; 13.0 before 13.2 · source: NVD
EL
Enterprise Linux · Redhat
8.0 · source: NVD
SC
Software Collections · Redhat
All versions, or not specified · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2021-3393
CVE.org
https://www.cve.org/CVERecord?id=CVE-2021-3393
Issue Tracking
https://bugzilla.redhat.com/show_bug.cgi?id=1924005
Third Party Advisory
https://security.gentoo.org/glsa/202105-32
Third Party Advisory
https://security.netapp.com/advisory/ntap-20210507-0006/
More from PostgreSQL
9.8
CVE-2015-0244
PostgreSQL before 9.0.19, 9.1.x before 9.1.15, 9.2.x before 9.2.10, 9.3.x before 9.3.6, and 9.4.x before 9.4.1 does not properly handle errors while reading a protocol message,…
9.8
CVE-2015-3166
The snprintf implementation 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 does not properly handle system-call…
9.8
CVE-2019-10211
Postgresql Windows installer before versions 11.5, 10.10, 9.6.15, 9.5.19, 9.4.24 is vulnerable via bundled OpenSSL executing code from unprotected directory
9.8
CVE-2018-16850
postgresql before versions 11.1, 10.6 is vulnerable to a to SQL injection in pg_upgrade and pg_dump via CREATE TRIGGER
9.8
CVE-2017-7546
PostgreSQL versions before 9.2.22, 9.3.18, 9.4.13, 9.5.8 and 9.6.4 are vulnerable to incorrect authentication flaw allowing remote attackers to gain access to database accounts…