Vulnerability Details : CVE-2021-3677
A flaw was found in postgresql. A purpose-crafted query can read arbitrary bytes of server memory. In the default configuration, any authenticated database user can complete this attack at will. The attack does not require the ability to create objects. If server settings include max_worker_processes=0, the known versions of this attack are infeasible. However, undiscovered variants of the attack may be independent of that setting.
Vulnerability category: Information leak
Products affected by CVE-2021-3677
- cpe:2.3:o:redhat:enterprise_linux:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:software_collections:1.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_power_little_endian:8.0:*:*:*:*:*:*:*
- cpe:2.3:o:redhat:enterprise_linux_for_ibm_z_systems:8.0:*:*:*:*:*:*:*
- cpe:2.3:a:redhat:virtualization:4.0:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
- cpe:2.3:a:postgresql:postgresql:*:*:*:*:*:*:*:*
- cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
Threat overview for CVE-2021-3677
Top countries where our scanners detected CVE-2021-3677
Top open port discovered on systems with this issue
80
IPs affected by CVE-2021-3677 133,980
Threat actors abusing to this issue?
Yes
Find out if you* are
affected by CVE-2021-3677!
*Directly or indirectly through your vendors, service providers and 3rd parties.
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attack surface intelligence
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Exploit prediction scoring system (EPSS) score for CVE-2021-3677
0.09%
Probability of exploitation activity in the next 30 days
EPSS Score History
~ 38 %
Percentile, the proportion of vulnerabilities that are scored at or less
CVSS scores for CVE-2021-3677
| Base Score | Base Severity | CVSS Vector | Exploitability Score | Impact Score | Score Source | First Seen |
|---|---|---|---|---|---|---|
|
4.0
|
MEDIUM | AV:N/AC:L/Au:S/C:P/I:N/A:N |
8.0
|
2.9
|
NIST | |
|
6.5
|
MEDIUM | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
2.8
|
3.6
|
NIST |
CWE ids for CVE-2021-3677
-
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.Assigned by: secalert@redhat.com (Primary)
References for CVE-2021-3677
-
https://security.gentoo.org/glsa/202211-04
PostgreSQL: Multiple Vulnerabilities (GLSA 202211-04) — Gentoo securityThird Party Advisory
-
https://security.netapp.com/advisory/ntap-20220407-0008/
CVE-2021-3677 Postgresql Vulnerability in NetApp Products | NetApp Product SecurityThird Party Advisory
-
https://www.postgresql.org/support/security/CVE-2021-3677/
PostgreSQL: CVE-2021-3677: Memory disclosure in certain queriesVendor Advisory
-
https://bugzilla.redhat.com/show_bug.cgi?id=2001857
2001857 – (CVE-2021-3677) CVE-2021-3677 postgresql: memory disclosure in certain queriesIssue Tracking;Third Party Advisory
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