isc-dhcp -- remotely exploitable vulnerability

2021-05-2600:00:00

vuxml.freebsd.org

7.4 High

CVSS3

Attack Vector

ADJACENT_NETWORK

Attack Complexity

LOW

Privileges Required

NONE

User Interaction

NONE

Scope

CHANGED

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

HIGH

CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H

3.3 Low

CVSS2

Access Vector

ADJACENT_NETWORK

Access Complexity

LOW

Authentication

NONE

Confidentiality Impact

NONE

Integrity Impact

NONE

Availability Impact

PARTIAL

AV:A/AC:L/Au:N/C:N/I:N/A:P

0.003 Low

EPSS

Percentile

67.8%

JSON

Michael McNally reports:

Program code used by the ISC DHCP package to read and parse stored leases
has a defect that can be exploited by an attacker to cause one of several
undesirable outcomes

OSVersionArchitecturePackageVersionFilename
FreeBSDanynoarchisc-dhcp44-relay< 4.4.2-P1UNKNOWN
FreeBSDanynoarchisc-dhcp44-server< 4.4.2-P1UNKNOWN
FreeBSDanynoarchisc-dhcp44-client< 4.4.2-P1UNKNOWN