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FreeBSD : PostgreSQL server -- Client memory disclosure when connecting, with Kerberos, to modified server. (7a8b6170-a889-11ed-bbae-6cc21735f730)

low Nessus Plugin ID 171246

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Synopsis

The remote FreeBSD host is missing one or more security-related updates.

Description

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 7a8b6170-a889-11ed-bbae-6cc21735f730 advisory.

 - PostgreSQL Project reports: A modified, unauthenticated server can send an unterminated string during the establishment of Kerberos transport encryption. When a libpq client application has a Kerberos credential cache and doesn't explicitly disable option gssencmode, a server can cause libpq to over-read and report an error message containing uninitialized bytes from and following its receive buffer. If libpq's caller somehow makes that message accessible to the attacker, this achieves a disclosure of the over-read bytes. We have not confirmed or ruled out viability of attacks that arrange for a crash or for presence of notable, confidential information in disclosed bytes. (CVE-2022-41862)

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

Solution

Update the affected packages.

See Also

https://www.postgresql.org/support/security/CVE-2022-41862/

http://www.nessus.org/u?d780d1ef

Plugin Details

Severity: Low

ID: 171246

File Name: freebsd_pkg_7a8b6170a88911edbbae6cc21735f730.nasl

Version: 1.3

Type: local

Published: 2/9/2023

Updated: 5/19/2023

Supported Sensors: Nessus

Risk Information

VPR

Risk Factor: Low

Score: 2.2

CVSS v2

Risk Factor: Low

Base Score: 2.6

Temporal Score: 1.9

Vector: CVSS2#AV:N/AC:H/Au:N/C:P/I:N/A:N

CVSS Score Source: CVE-2022-41862

CVSS v3

Risk Factor: Low

Base Score: 3.7

Temporal Score: 3.2

Vector: CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

CPE: p-cpe:/a:freebsd:freebsd:postgresql12-client, p-cpe:/a:freebsd:freebsd:postgresql13-client, p-cpe:/a:freebsd:freebsd:postgresql14-client, p-cpe:/a:freebsd:freebsd:postgresql15-client, cpe:/o:freebsd:freebsd

Required KB Items: Host/local_checks_enabled, Host/FreeBSD/release, Host/FreeBSD/pkg_info

Exploit Ease: No known exploits are available

Patch Publication Date: 2/9/2023

Vulnerability Publication Date: 2/9/2023

Reference Information

CVE: CVE-2022-41862

IAVB: 2023-B-0009-S