CVE-2007-4924

mediumpriority · track · 34EPSS 0.107 · 96 %ileexploit · functionalEUUS
grimoire priorityP1 · Urgent
Exploitable?
Public exploit
1 exploit · functional
Likely / severe?
10.7% (96th) EPSS
CVSS 5 · medium
Is it mine?
20 products
Check your exposure
Who says so?
3 sources
enisa_euvd · nvd · redhat_csaf

EPSS · scored 2026-10-28

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."

01

remediations

Vendor fix, mitigation, or workaround guidance, as published by each source.

A vendor fix is available.

  • Fixedopal-0:2.2.2-1.1.0.1.i386 as a component of Red Hat Enterprise Linux Desktop (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-0:2.2.2-1.1.0.1.i386 as a component of Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-0:2.2.2-1.1.0.1.src as a component of Red Hat Enterprise Linux Desktop (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-0:2.2.2-1.1.0.1.src as a component of Red Hat Enterprise Linux Desktop Workstation (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-0:2.2.2-1.1.0.1.src as a component of Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-0:2.2.2-1.1.0.1.x86_64 as a component of Red Hat Enterprise Linux Desktop (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-0:2.2.2-1.1.0.1.x86_64 as a component of Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-debuginfo-0:2.2.2-1.1.0.1.i386 as a component of Red Hat Enterprise Linux Desktop (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-debuginfo-0:2.2.2-1.1.0.1.i386 as a component of Red Hat Enterprise Linux Desktop Workstation (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-debuginfo-0:2.2.2-1.1.0.1.i386 as a component of Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-debuginfo-0:2.2.2-1.1.0.1.x86_64 as a component of Red Hat Enterprise Linux Desktop (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-debuginfo-0:2.2.2-1.1.0.1.x86_64 as a component of Red Hat Enterprise Linux Desktop Workstation (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-debuginfo-0:2.2.2-1.1.0.1.x86_64 as a component of Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-devel-0:2.2.2-1.1.0.1.i386 as a component of Red Hat Enterprise Linux Desktop Workstation (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-devel-0:2.2.2-1.1.0.1.i386 as a component of Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-devel-0:2.2.2-1.1.0.1.x86_64 as a component of Red Hat Enterprise Linux Desktop Workstation (v. 5 client)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
  • Fixedopal-devel-0:2.2.2-1.1.0.1.x86_64 as a component of Red Hat Enterprise Linux Optional Productivity Applications (v. 5 server)redhat_csaf

    Before applying this update, make sure that all previously-released errata relevant to your system have been applied. This update is available via Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at http://kbase.redhat.com/faq/FAQ_58_10188

    https://access.redhat.com/errata/RHSA-2007:0957
02

cvss

Technical severity, 0–10. One row per scoring source.

5.0
010

base score 0–10 · higher = more severe · hover a vector to decode

v2.05mediumAV:N/AC:L/Au:N/C:N/I:N/A:Pprimary · NVD / NIST USexploitability 10 · impact 2.9
v2.04.5mediumAV:N/AC:L/Au:N/C:N/I:N/A:P/E:POCsecondary · CVSS-BT (t0sche)
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USprimaryCWE-20US
04

exploits (1)

Public proof-of-concept and weaponised exploit code.

05

affected products (20)

Products and version ranges known to be affected.

06

advisories (1)

Vendor and ecosystem advisories describing this.

  • RHSA-2007:0957Red Hat Security Advisory: opal security update2007-10-08csaf · redhat_csafUS

    Updated opal packages that fix a security issue are now available for Red Hat Enterprise Linux 5. This update has been rated as having moderate security impact by the Red Hat Security Response Team.

07

also known as (2)

Other names and identifiers for this entity.

08

sources

Which sources assert this record, and when.

enisa_euvdnvdredhat_csafNVDCVE.orgMITRE
published 2007-10-08modified 2026-06-16
10

references (44)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan