drucken bookmarks versenden konfigurieren admin pdf Sicherheit: Pufferüberlauf in dhcp
Name: |
Pufferüberlauf in dhcp |
|
ID: |
RHSA-2021:2357-01 |
|
Distribution: |
Red Hat |
|
Plattformen: |
Red Hat Enterprise Linux |
|
Datum: |
Mi, 9. Juni 2021, 23:19 |
|
Referenzen: |
https://access.redhat.com/security/cve/CVE-2021-25217 |
|
Applikationen: |
ISC DHCP |
|
Originalnachricht |
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA256
===================================================================== Red Hat Security Advisory
Synopsis: Important: dhcp security update Advisory ID: RHSA-2021:2357-01 Product: Red Hat Enterprise Linux Advisory URL: https://access.redhat.com/errata/RHSA-2021:2357 Issue date: 2021-06-09 CVE Names: CVE-2021-25217 =====================================================================
1. Summary:
An update for dhcp is now available for Red Hat Enterprise Linux 7.
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 Client (v. 7) - x86_64 Red Hat Enterprise Linux Client Optional (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode (v. 7) - x86_64 Red Hat Enterprise Linux ComputeNode Optional (v. 7) - x86_64 Red Hat Enterprise Linux Server (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Server Optional (v. 7) - ppc64, ppc64le, s390x, x86_64 Red Hat Enterprise Linux Workstation (v. 7) - x86_64 Red Hat Enterprise Linux Workstation Optional (v. 7) - 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 Client (v. 7):
Source: dhcp-4.2.5-83.el7_9.1.src.rpm
x86_64: dhclient-4.2.5-83.el7_9.1.x86_64.rpm dhcp-common-4.2.5-83.el7_9.1.x86_64.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.i686.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.x86_64.rpm dhcp-libs-4.2.5-83.el7_9.1.i686.rpm dhcp-libs-4.2.5-83.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Client Optional (v. 7):
x86_64: dhcp-4.2.5-83.el7_9.1.x86_64.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.i686.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.x86_64.rpm dhcp-devel-4.2.5-83.el7_9.1.i686.rpm dhcp-devel-4.2.5-83.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode (v. 7):
Source: dhcp-4.2.5-83.el7_9.1.src.rpm
x86_64: dhclient-4.2.5-83.el7_9.1.x86_64.rpm dhcp-common-4.2.5-83.el7_9.1.x86_64.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.i686.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.x86_64.rpm dhcp-libs-4.2.5-83.el7_9.1.i686.rpm dhcp-libs-4.2.5-83.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux ComputeNode Optional (v. 7):
x86_64: dhcp-4.2.5-83.el7_9.1.x86_64.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.i686.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.x86_64.rpm dhcp-devel-4.2.5-83.el7_9.1.i686.rpm dhcp-devel-4.2.5-83.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Server (v. 7):
Source: dhcp-4.2.5-83.el7_9.1.src.rpm
ppc64: dhclient-4.2.5-83.el7_9.1.ppc64.rpm dhcp-4.2.5-83.el7_9.1.ppc64.rpm dhcp-common-4.2.5-83.el7_9.1.ppc64.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.ppc.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.ppc64.rpm dhcp-libs-4.2.5-83.el7_9.1.ppc.rpm dhcp-libs-4.2.5-83.el7_9.1.ppc64.rpm
ppc64le: dhclient-4.2.5-83.el7_9.1.ppc64le.rpm dhcp-4.2.5-83.el7_9.1.ppc64le.rpm dhcp-common-4.2.5-83.el7_9.1.ppc64le.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.ppc64le.rpm dhcp-libs-4.2.5-83.el7_9.1.ppc64le.rpm
s390x: dhclient-4.2.5-83.el7_9.1.s390x.rpm dhcp-4.2.5-83.el7_9.1.s390x.rpm dhcp-common-4.2.5-83.el7_9.1.s390x.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.s390.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.s390x.rpm dhcp-libs-4.2.5-83.el7_9.1.s390.rpm dhcp-libs-4.2.5-83.el7_9.1.s390x.rpm
x86_64: dhclient-4.2.5-83.el7_9.1.x86_64.rpm dhcp-4.2.5-83.el7_9.1.x86_64.rpm dhcp-common-4.2.5-83.el7_9.1.x86_64.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.i686.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.x86_64.rpm dhcp-libs-4.2.5-83.el7_9.1.i686.rpm dhcp-libs-4.2.5-83.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Server Optional (v. 7):
ppc64: dhcp-debuginfo-4.2.5-83.el7_9.1.ppc.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.ppc64.rpm dhcp-devel-4.2.5-83.el7_9.1.ppc.rpm dhcp-devel-4.2.5-83.el7_9.1.ppc64.rpm
ppc64le: dhcp-debuginfo-4.2.5-83.el7_9.1.ppc64le.rpm dhcp-devel-4.2.5-83.el7_9.1.ppc64le.rpm
s390x: dhcp-debuginfo-4.2.5-83.el7_9.1.s390.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.s390x.rpm dhcp-devel-4.2.5-83.el7_9.1.s390.rpm dhcp-devel-4.2.5-83.el7_9.1.s390x.rpm
x86_64: dhcp-debuginfo-4.2.5-83.el7_9.1.i686.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.x86_64.rpm dhcp-devel-4.2.5-83.el7_9.1.i686.rpm dhcp-devel-4.2.5-83.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Workstation (v. 7):
Source: dhcp-4.2.5-83.el7_9.1.src.rpm
x86_64: dhclient-4.2.5-83.el7_9.1.x86_64.rpm dhcp-4.2.5-83.el7_9.1.x86_64.rpm dhcp-common-4.2.5-83.el7_9.1.x86_64.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.i686.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.x86_64.rpm dhcp-libs-4.2.5-83.el7_9.1.i686.rpm dhcp-libs-4.2.5-83.el7_9.1.x86_64.rpm
Red Hat Enterprise Linux Workstation Optional (v. 7):
x86_64: dhcp-debuginfo-4.2.5-83.el7_9.1.i686.rpm dhcp-debuginfo-4.2.5-83.el7_9.1.x86_64.rpm dhcp-devel-4.2.5-83.el7_9.1.i686.rpm dhcp-devel-4.2.5-83.el7_9.1.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 <secalert@redhat.com>. More contact details at https://access.redhat.com/security/team/contact/
Copyright 2021 Red Hat, Inc. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1
iQIVAwUBYMCeytzjgjWX9erEAQgPYw/+K6NTT5tvNy0WHRy46UioFuzIbxlMOPzm zXmk61B2Dgod7DCU3EbF9u7nSViaQds11pDCrTejH70WrqNQSaWMhsASgtNmQ42q 0oVWQwqyB8mP/73BwYJQ84eZDGwsyqQf/9MO96g4c0jlZOAu9vSxvSflQ4DY8m9L 0+pk3/zHOsUz3Za7Ns/1wa8pmq3hxAt0z6Z6ri0Ka8CEHg7W7ELGC67ih1BOcpP5 mdWOSfTW+F1EzmerDW0eom09R/Ndfo/FdGeCbEq1K6kvcrPy4e/tsyBCquPYPFar aTADxJPMObDTY0dJhqw1qZ5cERLnhJaj8GzWc0Ne2KIAFig/NcVhEZL8RtvrNWhO JIaVZ7zK6bi1VASVVIAP8yQzwdZFEbfMREOa705gMvXMz1Ux08YvsbrelD/LeJXe 45C2+zGvM7KDd/AlrhopZPbBJI07tbNe8qWzFggJtBTMVg28i5K7DjFjvASFZFrV 8nKdWae1GOEtH23fygGOoW4m0KkGWd1Tc/lte6Wy788KOa/yF3IQkWeTSo5KG33Q UHCzx6NzHyeAgW7K9QvvpIjfbxIAyBbebsIkhOhySjfsAp28lKkaZZRVF/sNWIvG GRibEMi366KUTR5AiTMAjHoYgIDzp7nywWiYBhf9SuNgqV3kG0Yz7fd1ac0+qcH5 zPKanVJNoQs= =9+pl -----END PGP SIGNATURE-----
-- RHSA-announce mailing list RHSA-announce@redhat.com https://listman.redhat.com/mailman/listinfo/rhsa-announce
|
|
|
|