Skip to content
OpenAdvisories
Medium ELSA-2023-2502 2 CVEs

Moderate: dhcp security and enhancement update (Oracle Linux 9)

Published May 15, 2023 · Updated May 15, 2023

Ecosystem: Oracle Linux

Summary

[12:4.4.2-18.b1]
- Fix for CVE-2022-2928
- Fix for CVE-2022-2929
- Use systemd-sysusers for dhcp user and group (#2095396)

Fixed packages 4

ReleasePackageFixed in
Oracle Linux · 9 dhcp-client 12:4.4.2-18.b1.el9
Oracle Linux · 9 dhcp-common 12:4.4.2-18.b1.el9
Oracle Linux · 9 dhcp-relay 12:4.4.2-18.b1.el9
Oracle Linux · 9 dhcp-server 12:4.4.2-18.b1.el9

Vulnerabilities 2

  • 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-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