CVE-2007-5365

Severity: high (CVSS 7.2 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 80.3% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2007-10-11 · updated 2026-06-16
Weakness: CWE-119

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.

Affected products

Debian Linux: 3.1, 4.0
OpenBSD: 4.0, 4.1, 4.2
Red Hat Enterprise Linux: 2.1
RedHat Linux Advanced Workstation: 2.1
Sun Opensolaris: snv_01, snv_02, snv_03, snv_04, snv_05, snv_06 (+96)
Sun Solaris: 8.0, 9.0, 10.0
Ubuntu Linux: 6.06-_nil_, 6.10, 7.04, 7.10

References

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=446354
http://secunia.com/advisories/27160
http://secunia.com/advisories/27273
http://secunia.com/advisories/27338
http://secunia.com/advisories/27350
http://secunia.com/advisories/32668
http://securitytracker.com/id?1021157
http://sunsolve.sun.com/search/document.do?assetkey=1-21-109077-21-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-243806-1
http://www.coresecurity.com/index.php5?module=ContentMod&action=item&id=1962
http://www.debian.org/security/2007/dsa-1388
http://www.openbsd.org/cgi-bin/cvsweb/src/usr.sbin/dhcpd/options.c

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