Debian Security Advisory

DLA-3651-1 postgresql-11 -- LTS security update

Date Reported:
14 Nov 2023
Affected Packages:
Security database references:
In Mitre's CVE dictionary: CVE-2023-5868, CVE-2023-5869, CVE-2023-5870.
More information:

Several vulnerabilities have been discovered in the PostgreSQL database system.

  • CVE-2023-5868

    Jingzhou Fu discovered a memory disclosure flaw in aggregate function calls.

  • CVE-2023-5869

    Pedro Gallegos reported integer overflow flaws resulting in buffer overflows in the array modification functions.

  • CVE-2023-5870

    Hemanth Sandrana and Mahendrakar Srinivasarao reported that the pg_cancel_backend role can signal certain superuser processes, potentially resulting in denial of service.

For Debian 10 buster, these problems have been fixed in version 11.22-0+deb10u1.

We recommend that you upgrade your postgresql-11 packages.

For the detailed security status of postgresql-11 please refer to its security tracker page at:

Further information about Debian LTS security advisories, how to apply these updates to your system and frequently asked questions can be found at: