CVE-2023-5870 Postgresql: role pg_signal_backend can signal certain superuser processes.

2023-12-1017:58:30
CWE-400
redhat
www.cve.org
postgresql
flaw
role
signal
background workers
exploitation
denial of service
2.2 Low
CVSS3
Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
LOW
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
6.5 Medium
AI Score
Confidence
High
0.001 Low
EPSS
Percentile
46.9%
JSON
A flaw was found in PostgreSQL involving the pg_cancel_backend role that signals background workers, including the logical replication launcher, autovacuum workers, and the autovacuum launcher. Successful exploitation requires a non-core extension with a less-resilient background worker and would affect that specific background worker only. This issue may allow a remote high privileged user to launch a denial of service (DoS) attack.
CNA Affected

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]