VulnerabilityModified
CVE-2021-3677
A purpose-crafted query can read arbitrary bytes of server memory.
MEDIUM 6.5EPSS 1.44%
Does this matter?
Lower severity and a low EPSS score (1.44%). Track it; it rarely justifies an emergency change on its own.
Description
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.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.44% probability · 72th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-200
- Affected
- postgresql/postgresql · redhat/virtualization · redhat/enterprise linux · redhat/enterprise linux for ibm z systems · redhat/enterprise linux for power little endian · redhat/software collections · fedoraproject/fedora
- Source
- secalert@redhat.com
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2001857Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202211-04Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220407-0008/Third Party Advisory
- https://www.postgresql.org/support/security/CVE-2021-3677/Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2001857Issue Tracking, Third Party Advisory
- https://security.gentoo.org/glsa/202211-04Third Party Advisory
- https://security.netapp.com/advisory/ntap-20220407-0008/Third Party Advisory
- https://www.postgresql.org/support/security/CVE-2021-3677/Vendor Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.