CVE-2009-0692

Severity: critical (CVSS 10.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 25.8% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-07-14 · updated 2026-06-16
Weakness: CWE-119

Description

Stack-based buffer overflow in the script_write_params method in client/dhclient.c in ISC DHCP dhclient 4.1 before 4.1.0p1, 4.0 before 4.0.1p1, 3.1 before 3.1.2p1, 3.0, and 2.0 allows remote DHCP servers to execute arbitrary code via a crafted subnet-mask option.

Affected products

ISC DHCP: 2.0, 3.0, 3.1, 4.0, 4.1.0

References

http://ftp.netbsd.org/pub/NetBSD/security/advisories/NetBSD-SA2009-010.txt.asc
http://itrc.hp.com/service/cki/docDisplay.do?docId=emr_na-c02286083
http://lists.opensuse.org/opensuse-security-announce/2009-07/msg00003.html
http://secunia.com/advisories/35785
http://secunia.com/advisories/35829
http://secunia.com/advisories/35830
http://secunia.com/advisories/35831
http://secunia.com/advisories/35832
http://secunia.com/advisories/35841
http://secunia.com/advisories/35849
http://secunia.com/advisories/35850
http://secunia.com/advisories/35851

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