Information disclosure in Postgresql
CVE-2021-3393
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.
EPSS: 0.012 (64.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.
Affected products
- Postgresql
- Redhat Enterprise_linux — versions 8.0
- Redhat Software_collections
- N/a Postgresql — versions postgresql 13.2, postgresql 12.6, postgresql 11.11
Weakness classification (CWE)
Public proof-of-concept exploits
References
- secalert@redhat.com (Third Party Advisory, x_refsource_MISC, Issue Tracking)
- secalert@redhat.com (x_refsource_CONFIRM, Third Party Advisory)
- secalert@redhat.com (vendor-advisory, Third Party Advisory, x_refsource_GENTOO)
Frequently asked questions
- What is CVE-2021-3393?
- CVE-2021-3393 is a medium-severity vulnerability in Postgresql, classified under Generation of Error Message Containing Sensitive Information. CVSS score: 4.3/10. Published 2021-04-01.
- How severe is CVE-2021-3393?
- Medium severity. CVSS v3 base score is 4.3 out of 10.
- Is CVE-2021-3393 known to be exploited?
- 3 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.