CVE-2007-4643

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 2.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2007-08-31 · updated 2026-06-16
Weakness: CWE-119

Description

Integer underflow in Doomsday (aka deng) 1.9.0-beta5.1 and earlier allows remote attackers to cause a denial of service (daemon crash) via a PKT_CHAT packet with a data length less than 3, which triggers an erroneous malloc, possibly related to the Sv_HandlePacket function in sv_main.c.

Affected products

Doomsday: through 1.9.0_beta5.1

References

http://aluigi.org/poc/dumsdei.zip
http://bugs.gentoo.org/show_bug.cgi?id=190835
http://secunia.com/advisories/26524
http://secunia.com/advisories/28821
http://security.gentoo.org/glsa/glsa-200802-02.xml
http://securityreason.com/securityalert/3084
http://www.securityfocus.com/archive/1/478077/100/0/threaded
http://www.securityfocus.com/bid/25483
https://exchange.xforce.ibmcloud.com/vulnerabilities/36338
http://aluigi.org/poc/dumsdei.zip
http://bugs.gentoo.org/show_bug.cgi?id=190835
http://secunia.com/advisories/26524

Get alerted when CVE-2007-4643 or the next vulnerability affects your stack