CVE-2012-0031

mediumpriority · track · 29EPSS 0.028 · 86 %ileexploit · PoCEUUS

grimoire priorityP1 · Urgent

Exploitable?

Public exploit

1 exploit · PoC

Likely / severe?

2.80% (86th) EPSS

CVSS 4.6 · medium

Is it mine?

37 products

Check your exposure

Who says so?

4 sources

cnnvd · enisa_euvd · nvd · redhat_csaf

EPSS · scored 2026-10-27

scoreboard.c in the Apache HTTP Server 2.2.21 and earlier might allow local users to cause a denial of service (daemon crash during shutdown) or possibly have unspecified other impact by modifying a certain type field within a scoreboard shared memory segment, leading to an invalid call to the free function.

remediations

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

A vendor fix is available.

Fixedhttpd-0:2.2.17-15.4.ep5.el5.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-0:2.2.17-15.4.ep5.el5.src as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-0:2.2.17-15.4.ep5.el5.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-0:2.2.17-15.4.ep5.el6.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-0:2.2.17-15.4.ep5.el6.src as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-0:2.2.17-15.4.ep5.el6.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-devel-0:2.2.17-15.4.ep5.el5.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-devel-0:2.2.17-15.4.ep5.el5.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-devel-0:2.2.17-15.4.ep5.el6.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-devel-0:2.2.17-15.4.ep5.el6.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-manual-0:2.2.17-15.4.ep5.el5.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-manual-0:2.2.17-15.4.ep5.el5.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-manual-0:2.2.17-15.4.ep5.el6.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-manual-0:2.2.17-15.4.ep5.el6.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-tools-0:2.2.17-15.4.ep5.el6.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedhttpd-tools-0:2.2.17-15.4.ep5.el6.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedmod_ssl-1:2.2.17-15.4.ep5.el5.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedmod_ssl-1:2.2.17-15.4.ep5.el5.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedmod_ssl-1:2.2.17-15.4.ep5.el6.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
Fixedmod_ssl-1:2.2.17-15.4.ep5.el6.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 6 Serverredhat_csaf
Before applying this update, make sure all previously-released errata relevant to your system have been applied. This update is available via the Red Hat Network. Details on how to use the Red Hat Network to apply this update are available at https://access.redhat.com/knowledge/articles/11258
https://access.redhat.com/errata/RHSA-2012:0542
FixedRed Hat JBoss Web Server 1.0redhat_csaf
The References section of this erratum contains a download link (you must log in to download the update). Before applying the update, back up your existing JBoss Enterprise Web Server installation (including all applications and configuration files). The Apache HTTP Server must be restarted for this update to take effect.
https://access.redhat.com/errata/RHSA-2012:0543

cvss

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

4.6

010

base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.6–4.6

v2.04.6mediumAV:L/AC:L/Au:N/C:P/I:P/A:Pprimary · NVD / NIST USexploitability 3.9 · impact 6.4

v2.04.1mediumAV:L/AC:L/Au:N/C:P/I:P/A:P/E:POCsecondary · CVSS-BT (t0sche)

v2.02.6lowAV:N/AC:H/Au:N/C:N/I:N/A:Psecondary · Red Hat Product Security US

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-20USLLM-inferredCWE-416USLLM-inferred

exploits (1)

Public proof-of-concept and weaponised exploit code.

EDB-41768Apache 2.2 - Scoreboard Invalid Free On ShutdownPoC · exploit_db

affected products (37)

Products and version ranges known to be affected.

n/a n/a≤ n/aenisa_euvdEU
apache http server2.0.0 → 2.0.65nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
apache http server2.2.0 → 2.2.22nvdUScpe:2.3:a:apache:http_server:*:*:*:*:*:*:*:*
debian debian linux= 5.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 6.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
debian debian linux= 7.0nvdUScpe:2.3:o:debian:debian_linux:*:*:*:*:*:*:*:*
opensuse opensuse= 11.4nvdUScpe:2.3:o:opensuse:opensuse:*:*:*:*:*:*:*:*
redhat enterprise linux desktop= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux_desktop:*:*:*:*:*:*:*:*
redhat enterprise linux eus= 6.2nvdUScpe:2.3:o:redhat:enterprise_linux_eus:*:*:*:*:*:*:*:*
redhat enterprise linux server= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux_server:*:*:*:*:*:*:*:*
redhat enterprise linux server aus= 6.2nvdUScpe:2.3:o:redhat:enterprise_linux_server_aus:*:*:*:*:*:*:*:*
redhat enterprise linux workstation= 6.0nvdUScpe:2.3:o:redhat:enterprise_linux_workstation:*:*:*:*:*:*:*:*
redhat jboss enterprise web server= 1.0.0nvdUScpe:2.3:a:redhat:jboss_enterprise_web_server:*:*:*:*:*:*:*:*
redhat storage= 2.0nvdUScpe:2.3:a:redhat:storage:*:*:*:*:*:*:*:*
suse linux enterprise server= 10nvdUScpe:2.3:o:suse:linux_enterprise_server:*:*:*:*:*:*:*:*
suse linux enterprise software development kit= 10nvdUScpe:2.3:o:suse:linux_enterprise_software_development_kit:*:*:*:*:*:*:*:*
Red Hat JBoss Web Server 1.0all versionsfixedredhat_csafUScpe:/a:redhat:jboss_enterprise_web_server:1.0
httpd-0:2.2.17-15.4.ep5.el5.i386 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverall versionsfixedredhat_csafUS
httpd-0:2.2.17-15.4.ep5.el5.src as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverall versionsfixedredhat_csafUS
httpd-0:2.2.17-15.4.ep5.el5.x86_64 as a component of Red Hat JBoss Enterprise Web Server 1 for RHEL 5 Serverall versionsfixedredhat_csafUS

showing 20 of 37

advisories (2)

Vendor and ecosystem advisories describing this.

RHSA-2012:0542Red Hat Security Advisory: httpd security and bug fix update2012-05-07csaf · redhat_csafUS
Updated httpd packages that fix multiple security issues and one bug are now available for JBoss Enterprise Web Server 1.0.2 for Red Hat Enterprise Linux 5 and 6. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.
RHSA-2012:0543Red Hat Security Advisory: httpd security and bug fix update2012-05-07csaf · redhat_csafUS
An update for the Apache HTTP Server component for JBoss Enterprise Web Server 1.0.2 that fixes multiple security issues and one bug is now available from the Red Hat Customer Portal. The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

also known as (3)

Other names and identifiers for this entity.

sources

Which sources assert this record, and when.

cnnvd enisa_euvd nvd redhat_csaf NVD CVE.org MITRE

published 2012-01-18modified 2026-06-16

references (123)

External citations — patches, advisories, analysis.

scry

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