CVE-2007-4924
MEDIUM · CVSS 5.0EPSS 10.7%EU EUVD
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."
Key facts
- CVSS score
- 5.0 (v2.0)
- Severity
- MEDIUM
- CVSS vector
AV:N/AC:L/Au:N/C:N/I:N/A:P- Weakness (CWE)
- CWE-20
- EPSS score
- 10.7% (96th percentile)
- In CISA KEV
- No
- In EU EUVD
- Yes (EUVD-2007-4905)
- Published
- October 8, 2007
- NVD last modified
- June 16, 2026
- Status
- Modified
EU Vulnerability Database (EUVD)
This vulnerability is also tracked by ENISA as EUVD-2007-4905 in the EU Vulnerability Database. Last updated in EUVD on August 7, 2024.
View on the EU Vulnerability DatabaseAffected products
- ekiga / ekiga
- openh323 project / openh323
References
- http://lists.opensuse.org/opensuse-security-announce/2007-10/msg00006.html
- http://mail.gnome.org/archives/ekiga-list/2007-September/msg00103.html(Patch)
- http://openh323.cvs.sourceforge.net/openh323/opal/src/sip/sippdu.cxx?r1=2.83.2.19&r2=2.83.2.20
- http://osvdb.org/41637
- http://secunia.com/advisories/27118(Patch, Vendor Advisory)
- http://secunia.com/advisories/27128(Patch, Vendor Advisory)
- http://secunia.com/advisories/27129(Patch, Vendor Advisory)
- http://secunia.com/advisories/27271
- http://secunia.com/advisories/27524
- http://secunia.com/advisories/28380
- http://www.mandriva.com/security/advisories?name=MDKSA-2007:205
- http://www.redhat.com/support/errata/RHSA-2007-0957.html(Patch)
- http://www.s21sec.com/avisos/s21sec-037-en.txt
- http://www.securityfocus.com/archive/1/482120/30/4500/threaded
- http://www.securityfocus.com/bid/25955
- http://www.securitytracker.com/id?1018776
- http://www.ubuntu.com/usn/usn-562-1
- http://www.vupen.com/english/advisories/2007/3413
- http://www.vupen.com/english/advisories/2007/3414
- https://bugzilla.redhat.com/show_bug.cgi?id=296371
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A11398
- https://www.exploit-db.com/exploits/9240
Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS
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