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Failure to properly bounds-check a buffer used for processing DHCP options allows a malicious server (or an entity masquerading as a server) to cause a buffer overflow (and resulting crash) in dhclient by sending a...
1 affected package
isc-dhcp
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
isc-dhcp | — | — | — | Fixed |
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,...
1 affected package
isc-dhcp
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
isc-dhcp | — | — | Fixed | Fixed |
Some fixes available 2 of 6
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...
1 affected package
isc-dhcp
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
isc-dhcp | — | — | Not affected | Not affected |
dhcpcd before 6.10.0 allows remote attackers to cause a denial of service (invalid read and crash) via vectors related to the option length.
2 affected packages
dhcpcd5, dhcpcd
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
dhcpcd5 | Not in release | Not affected | Not affected | Not affected |
dhcpcd | Not affected | Not in release | Not in release | Not in release |
dhcpcd before 6.10.0, as used in Android 4.x before 4.4.4, 5.0.x before 5.0.2, 5.1.x before 5.1.1, and 6.x before 2016-04-01 and other products, mismanages option lengths, which allows remote attackers to execute arbitrary code or...
2 affected packages
dhcpcd5, dhcpcd
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
dhcpcd5 | Not in release | Not affected | Not affected | Not affected |
dhcpcd | Not affected | Not in release | Not in release | Not in release |
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.
1 affected package
isc-dhcp
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
isc-dhcp | — | — | — | — |
The print_option function in dhcp-common.c in dhcpcd through 6.9.1, as used in dhcp.c in dhcpcd 5.x in Android before 5.1 and other products, misinterprets the return value of the snprintf function, which allows remote DHCP...
2 affected packages
dhcpcd, dhcpcd5
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
dhcpcd | Not affected | Not in release | Not in release | Not in release |
dhcpcd5 | Not in release | Not affected | Not affected | Not affected |
The get_option function in dhcp.c in dhcpcd before 6.2.0, as used in dhcpcd 5.x in Android before 5.1 and other products, does not validate the relationship between length fields and the amount of data, which allows remote DHCP...
2 affected packages
dhcpcd, dhcpcd5
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
dhcpcd | Not affected | Not in release | Not in release | Not in release |
dhcpcd5 | Not in release | Not affected | Not affected | Not affected |
Some fixes available 1 of 4
The get_option function in dhcpcd 4.0.0 through 6.x before 6.4.3 allows remote DHCP servers to cause a denial of service by resetting the DHO_OPTIONSOVERLOADED option in the (1) bootfile or (2) servername section, which triggers...
2 affected packages
dhcpcd, dhcpcd5
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
dhcpcd | — | — | — | Not in release |
dhcpcd5 | — | — | — | Not affected |
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...
2 affected packages
dhcp3, isc-dhcp
Package | 24.04 LTS | 22.04 LTS | 20.04 LTS | 18.04 LTS |
---|---|---|---|---|
dhcp3 | — | — | — | — |
isc-dhcp | — | — | — | — |