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Package · Alpine

dhcp

6 known vulnerabilities.

All Critical High Medium Low Exploited only Public exploit

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  • Medium 6.5
    CVE-2022-2929

    DHCP memory leak

    In ISC DHCP 1.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1 a system with access to a DHCP server, sending DHCP packets crafted to include fqdn labels longer than 63 bytes, could eventually cause the server to run out of memory.

    ISC ISC DHCP isc-dhcp isc-dhcp Debian Ubuntu Alpine
  • Medium 6.5
    CVE-2022-2928

    An option refcount overflow exists in dhcpd

    In ISC DHCP 4.4.0 -> 4.4.3, ISC DHCP 4.1-ESV-R1 -> 4.1-ESV-R16-P1, when the function option_code_hash_lookup() is called from add_option(), it increases the option's refcount field. However, there is not a corresponding call to option_dereference() to decreme…

    ISC ISC DHCP isc-dhcp isc-dhcp Debian Ubuntu Alpine
  • Medium 6.5
    CVE-2019-6470

    dhcpd: use-after-free error leads crash in IPv6 mode when using mismatched BIND libraries

    There had existed in one of the ISC BIND libraries a bug in a function that was used by dhcpd when operating in DHCPv6 mode. There was also a bug in dhcpd relating to the use of this function per its documentation, but the bug in the library function prevente…

    Multiple, non-ISC dhcpd isc-dhcp isc-dhcp Debian Ubuntu Alpine
  • Medium 5.9
    CVE-2018-5733 EPSS 20%

    A malicious client can overflow a reference counter in ISC dhcpd

    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…

    ISC ISC DHCP isc-dhcp isc-dhcp Debian Ubuntu Alpine