5 Medium
CVSS2
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:N/I:N/A:P
0.003 Low
EPSS
Percentile
68.9%
dhcpcd is a standards compliant DHCP client daemon. It requests an IP address and other information from the DHCP server, automatically configures the network interface, and tries to renew the lease time.
infamous42md discovered that dhcpcd can be tricked to read past the end of the supplied DHCP buffer. As a result, this might lead to a crash of the daemon.
With a malicious DHCP server an attacker could cause a Denial of Service by crashing the DHCP client.
There is no known workaround at this time.
All dhcpcd users should upgrade to the latest available version:
# emerge --sync
# emerge --ask --oneshot --verbose ">=net-misc/dhcpcd-1.3.22_p4-r11"
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
Gentoo | any | all | net-misc/dhcpcd | < 1.3.22_p4-r11 | UNKNOWN |