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USN-531-2: dhcp vulnerability

Severity CVSS Published Added Modified
7 (AV:L/AC:L/Au:N/C:C/I:C/A:C) October 11, 2007 May 06, 2013 July 04, 2017

Description

Stack-based buffer overflow in the cons_options function in options.c in dhcpd in OpenBSD 4.0 through 4.2, and some other dhcpd implementations based on ISC dhcp-2, allows remote attackers to execute arbitrary code or cause a denial of service (daemon crash) via a DHCP request specifying a maximum message size smaller than the minimum IP MTU.

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References

Solution

ubuntu-upgrade-dhcp

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