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ISC » Dhcp : Security Vulnerabilities

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# CVE ID CWE ID # of Exploits Vulnerability Type(s) Publish Date Update Date Score Gained Access Level Access Complexity Authentication Conf. Integ. Avail.
1 CVE-2018-5733 190 Overflow 2019-01-16 2019-10-09
5.0
None Remote Low Not required None None Partial
A malicious client which is allowed to send very large amounts of traffic (billions of packets) to a DHCP server can eventually overflow a 32-bit reference counter, potentially causing dhcpd to crash. Affects ISC DHCP 4.1.0 -> 4.1-ESV-R15, 4.2.0 -> 4.2.8, 4.3.0 -> 4.3.6, 4.4.0.
2 CVE-2017-3144 400 2019-01-16 2019-10-09
5.0
None Remote Low Not required None None Partial
A vulnerability stemming from failure to properly clean up closed OMAPI connections can lead to exhaustion of the pool of socket descriptors available to the DHCP server. Affects ISC DHCP 4.1.0 to 4.1-ESV-R15, 4.2.0 to 4.2.8, 4.3.0 to 4.3.6. Older versions may also be affected but are well beyond their end-of-life (EOL). Releases prior to 4.1.0 have not been tested.
3 CVE-2016-2774 20 DoS 2016-03-09 2018-03-15
7.1
None Remote Medium Not required None None Complete
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.
4 CVE-2015-8605 20 DoS 2016-01-14 2016-12-07
5.7
None Local Network Medium Not required None None Complete
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.
5 CVE-2013-2494 119 DoS Overflow 2013-03-28 2013-03-29
4.9
None Remote High Single system None None Complete
libdns in ISC DHCP 4.2.x before 4.2.5-P1 allows remote name servers to cause a denial of service (memory consumption) via vectors involving a regular expression, as demonstrated by a memory-exhaustion attack against a machine running a dhcpd process, a related issue to CVE-2013-2266.
6 CVE-2012-3955 DoS 2012-09-14 2013-08-21
7.1
None Remote Medium Not required None None Complete
ISC DHCP 4.1.x before 4.1-ESV-R7 and 4.2.x before 4.2.4-P2 allows remote attackers to cause a denial of service (daemon crash) in opportunistic circumstances by establishing an IPv6 lease in an environment where the lease expiration time is later reduced.
7 CVE-2012-3954 399 DoS 2012-07-25 2016-11-28
3.3
None Local Network Low Not required None None Partial
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.
8 CVE-2012-3571 119 DoS Overflow 2012-07-25 2016-12-30
6.1
None Local Network Low Not required None None Complete
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.
9 CVE-2012-3570 119 DoS Overflow 2012-07-25 2016-11-28
5.7
None Local Network Medium Not required None None Complete
Buffer overflow in ISC DHCP 4.2.x before 4.2.4-P1, when DHCPv6 mode is enabled, allows remote attackers to cause a denial of service (segmentation fault and daemon exit) via a crafted client identifier parameter.
10 CVE-2011-4868 399 DoS 2012-01-14 2016-12-02
6.1
None Local Network Low Not required None None Complete
The logging functionality in dhcpd in ISC DHCP before 4.2.3-P2, when using Dynamic DNS (DDNS) and issuing IPv6 addresses, does not properly handle the DHCPv6 lease structure, which allows remote attackers to cause a denial of service (NULL pointer dereference and daemon crash) via crafted packets related to a lease-status update.
11 CVE-2011-4539 20 DoS 2011-12-08 2017-08-28
5.0
None Remote Low Not required None None Partial
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.
12 CVE-2011-2749 20 DoS 2011-08-15 2016-12-30
7.8
None Remote Low Not required None None Complete
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.
13 CVE-2011-2748 20 DoS 2011-08-15 2017-08-28
7.8
None Remote Low Not required None None Complete
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.
14 CVE-2011-0997 20 Exec Code 2011-04-08 2017-09-18
7.5
None Remote Low Not required Partial Partial Partial
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.
15 CVE-2011-0413 20 DoS 2011-01-31 2017-08-16
7.8
None Remote Low Not required None None Complete
The DHCPv6 server in ISC DHCP 4.0.x and 4.1.x before 4.1.2-P1, 4.0-ESV and 4.1-ESV before 4.1-ESV-R1, and 4.2.x before 4.2.1b1 allows remote attackers to cause a denial of service (assertion failure and daemon crash) by sending a message over IPv6 for a declined and abandoned address.
16 CVE-2010-3616 20 DoS 2010-12-17 2011-01-19
5.0
None Remote Low Not required None None Partial
ISC DHCP server 4.2 before 4.2.0-P2, when configured to use failover partnerships, allows remote attackers to cause a denial of service (communications-interrupted state and DHCP client service loss) by connecting to a port that is only intended for a failover peer, as demonstrated by a Nagios check_tcp process check to TCP port 520.
17 CVE-2010-3611 DoS 2010-11-04 2017-08-16
4.3
None Remote Medium Not required None None Partial
ISC DHCP server 4.0 before 4.0.2, 4.1 before 4.1.2, and 4.2 before 4.2.0-P1 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) via a DHCPv6 packet containing a Relay-Forward message without an address in the Relay-Forward link-address field.
18 CVE-2010-2156 189 1 DoS 2010-06-07 2017-08-16
5.0
None Remote Low Not required None None Partial
ISC DHCP 4.1 before 4.1.1-P1 and 4.0 before 4.0.2-P1 allows remote attackers to cause a denial of service (server exit) via a zero-length client ID.
19 CVE-2009-1893 59 2009-07-17 2017-09-28
6.9
None Local Medium Not required Complete Complete Complete
The configtest function in the Red Hat dhcpd init script for DHCP 3.0.1 in Red Hat Enterprise Linux (RHEL) 3 allows local users to overwrite arbitrary files via a symlink attack on an unspecified temporary file, related to the "dhcpd -t" command.
20 CVE-2009-1892 16 DoS 2009-07-17 2017-08-16
5.0
None Remote Low Not required None None Partial
dhcpd in ISC DHCP 3.0.4 and 3.1.1, when the dhcp-client-identifier and hardware ethernet configuration settings are both used, allows remote attackers to cause a denial of service (daemon crash) via unspecified requests.
21 CVE-2009-0692 119 Exec Code Overflow 2009-07-14 2017-09-28
10.0
None Remote Low Not required Complete Complete Complete
Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.
Total number of vulnerabilities : 21   Page : 1 (This Page)
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