Description
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.
CVSS Metrics
- Vector
- CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:N/I:N/A:L
- Attack Vector
- network
- Complexity
- high
- Privileges
- high
- User Action
- none
- Scope
- unchanged
- Confidentiality
- none
- Integrity
- none
- Availability
- low
- Weaknesses
- CWE-400NVD-CWE-noinfo
Metadata
- Primary Vendor
- POSTGRESQL
- Published
- 12/10/2023
- Last Modified
- 11/4/2025
- Source
- NIST NVD
- Note: Verify all details with official vendor sources before applying patches.
Affected Products
postgresql : postgresqlpostgresql : postgresqlpostgresql : postgresqlpostgresql : postgresqlpostgresql : postgresqlpostgresql : postgresqlredhat : codeready_linux_builder_eusredhat : codeready_linux_builder_eus_for_power_little_endian_eusredhat : codeready_linux_builder_eus_for_power_little_endian_eusredhat : codeready_linux_builder_for_arm64_eusredhat : codeready_linux_builder_for_arm64_eusredhat : codeready_linux_builder_for_arm64_eusredhat : codeready_linux_builder_for_ibm_z_systems_eusredhat : codeready_linux_builder_for_ibm_z_systems_eusredhat : codeready_linux_builder_for_power_little_endian_eusredhat : codeready_linux_builder_for_power_little_endian_eusredhat : software_collectionsredhat : enterprise_linuxredhat : enterprise_linuxredhat : enterprise_linux_eusredhat : enterprise_linux_eusredhat : enterprise_linux_eusredhat : enterprise_linux_eusredhat : enterprise_linux_for_arm_64redhat : enterprise_linux_for_arm_64redhat : enterprise_linux_for_ibm_z_systemsredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_ibm_z_systems_eusredhat : enterprise_linux_for_power_little_endianredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_for_power_little_endian_eusredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_ausredhat : enterprise_linux_server_tusredhat : enterprise_linux_server_tusredhat : enterprise_linux_server_tus
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