-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256 ===================================================================== Red Hat Security Advisory Synopsis: Important: dhcp security update Advisory ID: RHSA-2021:2418-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2418 Issue date: 2021-06-14 CVE Names: CVE-2021-25217 ===================================================================== 1. Summary: An update for dhcp is now available for Red Hat Enterprise Linux 7.2 Advanced Update Support. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section. 2. Relevant releases/architectures: Red Hat Enterprise Linux Server AUS (v. 7.2) - x86_64 Red Hat Enterprise Linux Server Optional AUS (v. 7.2) - x86_64 3. Description: The Dynamic Host Configuration Protocol (DHCP) is a protocol that allows individual devices on an IP network to get their own network configuration information, including an IP address, a subnet mask, and a broadcast address. The dhcp packages provide a relay agent and ISC DHCP service required to enable and administer DHCP on a network. Security Fix(es): * dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient (CVE-2021-25217) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section. 4. Solution: For details on how to apply this update, which includes the changes described in this advisory, refer to: https://access.redhat.com/articles/11258 5. Bugs fixed (https://bugzilla.redhat.com/): 1963258 - CVE-2021-25217 dhcp: stack-based buffer overflow when parsing statements with colon-separated hex digits in config or lease files in dhcpd and dhclient 6. Package List: Red Hat Enterprise Linux Server AUS (v. 7.2): Source: dhcp-4.2.5-42.el7_2.2.src.rpm x86_64: dhclient-4.2.5-42.el7_2.2.x86_64.rpm dhcp-4.2.5-42.el7_2.2.x86_64.rpm dhcp-common-4.2.5-42.el7_2.2.x86_64.rpm dhcp-debuginfo-4.2.5-42.el7_2.2.i686.rpm dhcp-debuginfo-4.2.5-42.el7_2.2.x86_64.rpm dhcp-libs-4.2.5-42.el7_2.2.i686.rpm dhcp-libs-4.2.5-42.el7_2.2.x86_64.rpm Red Hat Enterprise Linux Server Optional AUS (v. 7.2): x86_64: dhcp-debuginfo-4.2.5-42.el7_2.2.i686.rpm dhcp-debuginfo-4.2.5-42.el7_2.2.x86_64.rpm dhcp-devel-4.2.5-42.el7_2.2.i686.rpm dhcp-devel-4.2.5-42.el7_2.2.x86_64.rpm These packages are GPG signed by Red Hat for security. Our key and details on how to verify the signature are available from https://access.redhat.com/security/team/key/ 7. References: https://access.redhat.com/security/cve/CVE-2021-25217 https://access.redhat.com/security/updates/classification/#important 8. Contact: The Red Hat security contact is . More contact details at https://access.redhat.com/security/team/contact/ Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIVAwUBYMeuStzjgjWX9erEAQh/VhAAnVpWv5y4krTW9oCsk3BG7yABSuBNSLIj LxuwngaYtJyS6Qj+BgA+TayNC3iCb+xEvT7s5ogWBzQhRxcNWe1xGh/mdVseFvix N4vlP3Fn9xUpudwZpP+e4mf6aJPQXIqBEWk3CiNI8G4+Go2ad4hIl3zhVACDgDux s2iVGdwoJQB8gIoWeN0kRcBGdeUnpKoja6lkOiBbMleF4AJwaSx6yioOQsIMbe34 0UCymeHJJDeSUd+eQ7DRukVaP3WZcwTdQrpv79s7wSMJmkblnwUwHCtt0gOpojbb afEIpBniyY3OUfFocDb8DFszn473+WFn8W/H+42dsr+0sv9DgH4xRIuon3l4DyPr HXO0qUdVRZirpR5HkCXjOA4eDCkSNsEvxbe6VLmw0LFUjJKW/K822rbtU2oUNEjP vA1fCiL8wslrS+qXWpR0gqLF1uTzbgw6d1eUVQypgz/AY0bRFSFPo5bX2ZBH3Qc4 og0RAdUWDq0rhzUyvZNmBIH4JUxCqph27ol3MTc2YfwSa1ujH2KGcPIjKkcdTgbX EZhflkUTIKUIvxvtXoykJv0Qk1iWgfG2ruXz8OEBDJf+IA9H+jsWr8o+uErHiw0E RCcwS4IFW8+ZnTLzyzphpzicbTibg7EpKmqHPbwEvmc2vcE2gUJ+vYUHG/63GfJ/ 6HGyUY7c6+g= =ijSR -----END PGP SIGNATURE----- -- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce