openSUSE Leap 15.2: Critical DHCP Buffer Overrun CVE-2021-25217 Advisory
opensuse
September 26, 2025
An update that fixes one vulnerability is now available.
Description
This update for dhcp fixes the following issues:
- CVE-2021-25217: A buffer overrun in lease file parsing code can be use=
d
to exploit a common vulnerability shared by dhcpd and dhclient
(bsc#1186382)
This update was imported from the SUSE:SLE-15:Update update project.
Topics Covered
Patch
Patch Instructions:
To install this openSUSE Security Update use the SUSE recommended instal=
lation methods
like YaST online=5Fupdate or "zypper patch".
Alternatively you can run the command listed for your product:
- openSUSE Leap 15.2:
zypper in -t patch openSUSE-2021-834=3D1
Package List
- openSUSE Leap 15.2 (i586 x86=5F64):
dhcp-4.3.6.P1-lp152.8.6.1
dhcp-client-4.3.6.P1-lp152.8.6.1
dhcp-client-debuginfo-4.3.6.P1-lp152.8.6.1
dhcp-debuginfo-4.3.6.P1-lp152.8.6.1
dhcp-debugsource-4.3.6.P1-lp152.8.6.1
dhcp-devel-4.3.6.P1-lp152.8.6.1
dhcp-doc-4.3.6.P1-lp152.8.6.1
dhcp-relay-4.3.6.P1-lp152.8.6.1
dhcp-relay-debuginfo-4.3.6.P1-lp152.8.6.1
dhcp-server-4.3.6.P1-lp152.8.6.1
dhcp-server-debuginfo-4.3.6.P1-lp152.8.6.1
References
https://www.suse.com/security/cve/CVE-2021-25217.html
https://bugzilla.suse.com/1186382
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Severity
important
Lowest
Low
Medium
High
Critical
Announcement ID: openSUSE-SU-2021:0834-1
Rating: important
Affected Products:
openSUSE Leap 15.2
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=5F=
=5F=5F=5F
Topics Covered
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