CVE-2012-4502

Severity CVSS v4.0:

Pending analysis

Type:

CWE-189 Numeric Errors

Publication date:

05/11/2013

Last modified:

11/04/2025

Description

Multiple integer overflows in pktlength.c in Chrony before 1.29 allow remote attackers to cause a denial of service (crash) via a crafted (1) REQ_SUBNETS_ACCESSED or (2) REQ_CLIENT_ACCESSES command request to the PKL_CommandLength function or crafted (3) RPY_SUBNETS_ACCESSED, (4) RPY_CLIENT_ACCESSES, (5) RPY_CLIENT_ACCESSES_BY_INDEX, or (6) RPY_MANUAL_LIST command reply to the PKL_ReplyLength function, which triggers an out-of-bounds read or buffer overflow. NOTE: versions 1.27 and 1.28 do not require authentication to exploit.

Impact

Vector 2.0

AV:N/AC:L/Au:N/C:N/I:N/A:P CVSS v2.0 Severity and Metrics:

Base Score: 5.00 MEDIUM
Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P

Attack Vector (AV): Network
Attack Complexity (AC): Low
Authentication (Au): None
Confidentiality (C): None
Integrity (I): None
Availability (A): Physical

Base Score 2.0

5.00

Severity 2.0

MEDIUM

Vulnerable products and versions

CPE	From	Up to
cpe:2.3:a:tuxfamily:chrony::::::::		1.28 (including)
cpe:2.3:a:tuxfamily:chrony:1.0:::::::*
cpe:2.3:a:tuxfamily:chrony:1.1:::::::*
cpe:2.3:a:tuxfamily:chrony:1.18:::::::*
cpe:2.3:a:tuxfamily:chrony:1.19:::::::*
cpe:2.3:a:tuxfamily:chrony:1.19.99.1:::::::*
cpe:2.3:a:tuxfamily:chrony:1.19.99.2:::::::*
cpe:2.3:a:tuxfamily:chrony:1.19.99.3:::::::*
cpe:2.3:a:tuxfamily:chrony:1.20:::::::*
cpe:2.3:a:tuxfamily:chrony:1.21:::::::*
cpe:2.3:a:tuxfamily:chrony:1.21:pre1::::::
cpe:2.3:a:tuxfamily:chrony:1.23:::::::*
cpe:2.3:a:tuxfamily:chrony:1.23:pre1::::::
cpe:2.3:a:tuxfamily:chrony:1.23.1:::::::*
cpe:2.3:a:tuxfamily:chrony:1.24:::::::*

To consult the complete list of CPE names with products and versions, see this page

CPE	From	Up to
cpe:2.3:a:tuxfamily:chrony::::::::		1.28 (including)
cpe:2.3:a:tuxfamily:chrony:1.0:::::::*
cpe:2.3:a:tuxfamily:chrony:1.1:::::::*
cpe:2.3:a:tuxfamily:chrony:1.18:::::::*
cpe:2.3:a:tuxfamily:chrony:1.19:::::::*
cpe:2.3:a:tuxfamily:chrony:1.19.99.1:::::::*
cpe:2.3:a:tuxfamily:chrony:1.19.99.2:::::::*
cpe:2.3:a:tuxfamily:chrony:1.19.99.3:::::::*
cpe:2.3:a:tuxfamily:chrony:1.20:::::::*
cpe:2.3:a:tuxfamily:chrony:1.21:::::::*
cpe:2.3:a:tuxfamily:chrony:1.21:pre1::::::
cpe:2.3:a:tuxfamily:chrony:1.23:::::::*
cpe:2.3:a:tuxfamily:chrony:1.23:pre1::::::
cpe:2.3:a:tuxfamily:chrony:1.23.1:::::::*
cpe:2.3:a:tuxfamily:chrony:1.24:::::::*

CVE-2012-4502

Description

Impact

Vulnerable products and versions

References to Advisories, Solutions, and Tools