Most severe vulnerabilities for "isc dhcp" 4.2.1

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ISC DHCPInput Validation

Risk 46

Severity

7.8

Input Validation

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

The server in ISC DHCP 3.x and 4.x before 4.2.2, 3.1-ESV before 3.1-ESV-R3, and 4.1-ESV before 4.1-ESV-R3 allows remote attackers to cause a denial of service (daemon exit) via a crafted DHCP packet.

1 / 2

Source: MITRE

First published (updated )

CVE-2011-2748

ISC DHCPInput Validation

Risk 44

Severity

7.8

Input Validation

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

The server in ISC DHCP 3.x and 4.x before 4.2.2, 3.1-ESV before 3.1-ESV-R3, and 4.1-ESV before 4.1-ESV-R3 allows remote attackers to cause a denial of service (daemon exit) via a crafted BOOTP packet.

First published (updated )

CVE-2011-2749

ISC DHCPInput Validation

Risk 53

Severity

7.5

Input Validation

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

dhclient in ISC DHCP 3.0.x through 4.2.x before 4.2.1-P1, 3.1-ESV before 3.1-ESV-R1, and 4.1-ESV before 4.1-ESV-R2 allows remote attackers to execute arbitrary commands via shell metacharacters in a hostname obtained from a DHCP message, as demonstrated by a hostname that is provided to dhclient-script.

1 / 2

Source: MITRE

First published (updated )

CVE-2011-0997

ISC DHCPInput Validation

Risk 41

Severity

7.1

Input Validation

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

ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent TCP sessions, which allows remote attackers to cause a denial of service (INSIST assertion failure or request-processing outage) by establishing many sessions.

1 / 2

Source: Launchpad

First published (updated )

CVE-2016-2774

Sophos Unified Threat Management Up2dateInput Validation

Risk 38

Severity

6.5

Input Validation

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

ISC DHCP 4.x before 4.1-ESV-R12-P1, 4.2.x, and 4.3.x before 4.3.3-P1 allows remote attackers to cause a denial of service (application crash) via an invalid length field in a UDP IPv4 packet.

First published (updated )

CVE-2015-8605

ISC DHCPBuffer Overflow

Risk 36

Severity

6.1

Buffer Overflow

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

ISC DHCP 4.1.2 through 4.2.4 and 4.1-ESV before 4.1-ESV-R6 allows remote attackers to cause a denial of service (infinite loop and CPU consumption) via a malformed client identifier.

First published (updated )

CVE-2012-3571

ISC DHCPInput Validation

Risk 26

Severity

Input Validation

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

dhcpd in ISC DHCP 4.x before 4.2.3-P1 and 4.1-ESV before 4.1-ESV-R4 does not properly handle regular expressions in dhcpd.conf, which allows remote attackers to cause a denial of service (daemon crash) via a crafted request packet.

First published (updated )

CVE-2011-4539

ISC DHCPMultiple memory leaks in ISC DHCP 4.1.x and 4.2.x before 4.2.4-P1 and 4.1-ESV before 4.1-ESV-R6 allo…

Risk 19

Severity

3.3

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

Multiple memory leaks in ISC DHCP 4.1.x and 4.2.x before 4.2.4-P1 and 4.1-ESV before 4.1-ESV-R6 allow remote attackers to cause a denial of service (memory consumption) by sending many requests.

First published (updated )

CVE-2012-3954

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