CVE-2007-4924 Denial of service in n/a
Remote attackers can crash the application via malformed SIP packets in the Open Phone Abstraction Library, affecting VoIP services.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- Available
What is CVE-2007-4924?
CVE-2007-4924 is a medium-severity denial of service vulnerability in n/a, published on 8 Oct 2007. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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."
Weakness: CWE-20
Which versions are affected by CVE-2007-4924?
It affects 2 products.
Linux distribution packages (8)
opal Red Hat:enterprise_linux:5::client | All versions | 0:2.2.2-1.1.0.1 |
opal-debuginfo Red Hat:enterprise_linux:5::client | All versions | 0:2.2.2-1.1.0.1 |
opal Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.2.2-1.1.0.1 |
opal-debuginfo Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.2.2-1.1.0.1 |
opal-devel Red Hat:enterprise_linux:5::client_workstation | All versions | 0:2.2.2-1.1.0.1 |
opal Red Hat:rhel_productivity:5 | All versions | 0:2.2.2-1.1.0.1 |
opal-debuginfo Red Hat:rhel_productivity:5 | All versions | 0:2.2.2-1.1.0.1 |
opal-devel Red Hat:rhel_productivity:5 | All versions | 0:2.2.2-1.1.0.1 |
Products include Ekiga Ekiga, Openh323 Project Openh323.
How do I fix CVE-2007-4924?
Upgrade to a fixed version.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2007-4924 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2007-4924 exists.
Public exploit code: 1 Exploit-DB entry.
Other vulnerabilities in n/a
Sources
Also known as GHSA-55xh-gq2p-rgv2, RHSA-2007:0957.