CVE-2009-1789

Severity: medium (CVSS 4.3 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 8.5% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2009-05-26 · updated 2026-06-16

Description

mod/server.mod/servmsg.c in Eggheads Eggdrop and Windrop 1.6.19 and earlier allows remote attackers to cause a denial of service (crash) via a crafted PRIVMSG that causes an empty string to trigger a negative string length copy. NOTE: this issue exists because of an incorrect fix for CVE-2007-2807.

Affected products

Eggheads Eggdrop: 1.6.0, 1.6.1, 1.6.2, 1.6.3, 1.6.4, 1.6.5 (+14)
Eggheads Eggdrop Irc Bot: through 1.6.19
Philip Moore Windrop: through 1.6.19; 1.4.4, 1.4.6, 1.5.4, 1.5.4-rc1, 1.5.4-rc2, 1.5.4a (+19)

References

http://archives.neohapsis.com/archives/fulldisclosure/2009-05/0129.html
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=528778
http://cvs.eggheads.org/viewvc/viewvc.cgi/eggdrop1.6/doc/Changes1.6?revision=1.20&view=markup
http://osvdb.org/54460
http://secunia.com/advisories/35104
http://secunia.com/advisories/35158
http://secunia.com/advisories/35690
http://www.debian.org/security/2009/dsa-1826
http://www.mandriva.com/security/advisories?name=MDVSA-2009:126
http://www.securityfocus.com/archive/1/503574
http://www.securityfocus.com/bid/34985
http://www.vupen.com/english/advisories/2009/1340

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