CVE-2007-4924

high

Description

The Open Phone Abstraction Library (opal), as used by (1) Ekiga before 2.0.10 and (2) OpenH323 before 2.2.4, allows remote attackers to cause a denial of service (crash) via an invalid Content-Length header field in Session Initiation Protocol (SIP) packets, which causes a \0 byte to be written to an "attacker-controlled address."

References

https://www.exploit-db.com/exploits/9240

https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11398

https://euvd.enisa.europa.eu/vulnerability/EUVD-2007-4905

https://bugzilla.redhat.com/show_bug.cgi?id=296371

http://www.vupen.com/english/advisories/2007/3414

http://www.vupen.com/english/advisories/2007/3413

http://www.ubuntu.com/usn/usn-562-1

http://www.securitytracker.com/id?1018776

http://www.securityfocus.com/bid/25955

http://www.securityfocus.com/archive/1/482120/30/4500/threaded

http://www.s21sec.com/avisos/s21sec-037-en.txt

http://www.redhat.com/support/errata/RHSA-2007-0957.html

http://www.mandriva.com/security/advisories?name=MDKSA-2007:205

http://secunia.com/advisories/28380

http://secunia.com/advisories/27524

http://secunia.com/advisories/27271

http://secunia.com/advisories/27129

http://secunia.com/advisories/27128

http://secunia.com/advisories/27118

http://osvdb.org/41637

http://openh323.cvs.sourceforge.net/openh323/opal/src/sip/sippdu.cxx?r1=2.83.2.19&r2=2.83.2.20

http://mail.gnome.org/archives/ekiga-list/2007-September/msg00103.html

http://lists.opensuse.org/opensuse-security-announce/2007-10/msg00006.html

Details

Source: Mitre, NVD

Published: 2007-10-08

Updated: 2026-06-16

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:P

Severity: Medium

CVSS v3

Base Score: 7.5

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Severity: High

EPSS

EPSS: 0.1068