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
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.
- Published
- Jan 18, 2012
- Updated
- Jun 16, 2026
- EPSS
- 2.8% · 86th percentile
- CWE
- —
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Report tools
Action score
19
Monitor
Low priority for now.
- CVSS
- 18 / 40 · 4.6 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 1 / 30 · 2.8%
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| apache | http server | cpe:2.3:a:apache:http_server |
| debian | debian linux | cpe:2.3:o:debian:debian_linux |
| opensuse | opensuse | cpe:2.3:o:opensuse:opensuse |
| suse | linux enterprise server | cpe:2.3:o:suse:linux_enterprise_server |
| suse | linux enterprise software development kit | cpe:2.3:o:suse:linux_enterprise_software_development_kit |
| redhat | jboss enterprise web server | cpe:2.3:a:redhat:jboss_enterprise_web_server |
| redhat | enterprise linux | cpe:2.3:o:redhat:enterprise_linux |
| redhat | storage | cpe:2.3:a:redhat:storage |
| redhat | enterprise linux desktop | cpe:2.3:o:redhat:enterprise_linux_desktop |
| redhat | enterprise linux eus | cpe:2.3:o:redhat:enterprise_linux_eus |
| redhat | enterprise linux server | cpe:2.3:o:redhat:enterprise_linux_server |
| redhat | enterprise linux server aus | cpe:2.3:o:redhat:enterprise_linux_server_aus |
and 1 more
Using http server? Add it to your stack and be the first to know about CVEs like this one. (Apache HTTP)
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- apache http server2.0.0 and later · before 2.0.65
- apache http server2.2.0 and later · before 2.2.22
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| Debian:12 | apache2 | before 2.2.22-1 | 2.2.22-1 |
| Debian:5.0 | apache2 | before 2.2.9-10+lenny12 | 2.2.9-10+lenny12 |
| Debian:6.0 | apache2 | before 2.2.16-6+squeeze6 | 2.2.16-6+squeeze6 |
| Red Hat:enterprise_linux:5::client | httpd | before 0:2.2.3-63.el5_8.1 | 0:2.2.3-63.el5_8.1 |
| Red Hat:enterprise_linux:5::client | httpd-debuginfo | before 0:2.2.3-63.el5_8.1 | 0:2.2.3-63.el5_8.1 |
| Red Hat:enterprise_linux:5::client | mod_ssl | before 1:2.2.3-63.el5_8.1 | 1:2.2.3-63.el5_8.1 |
| Red Hat:enterprise_linux:5::client_workstation | httpd-devel | before 0:2.2.3-63.el5_8.1 | 0:2.2.3-63.el5_8.1 |
| Red Hat:enterprise_linux:5::client_workstation | httpd-manual | before 0:2.2.3-63.el5_8.1 | 0:2.2.3-63.el5_8.1 |
| Red Hat:enterprise_linux:6::client | httpd | before 0:2.2.15-15.el6_2.1 | 0:2.2.15-15.el6_2.1 |
| Red Hat:enterprise_linux:6::client | httpd-debuginfo | before 0:2.2.15-15.el6_2.1 | 0:2.2.15-15.el6_2.1 |
| Red Hat:enterprise_linux:6::client | httpd-devel | before 0:2.2.15-15.el6_2.1 | 0:2.2.15-15.el6_2.1 |
| Red Hat:enterprise_linux:6::client | httpd-manual | before 0:2.2.15-15.el6_2.1 | 0:2.2.15-15.el6_2.1 |
| Red Hat:enterprise_linux:6::client | httpd-tools | before 0:2.2.15-15.el6_2.1 | 0:2.2.15-15.el6_2.1 |
| Red Hat:enterprise_linux:6::client | mod_ssl | before 1:2.2.15-15.el6_2.1 | 1:2.2.15-15.el6_2.1 |
| Red Hat:jboss_enterprise_web_server:1::el5 | httpd | before 0:2.2.17-15.4.ep5.el5 | 0:2.2.17-15.4.ep5.el5 |
| Red Hat:jboss_enterprise_web_server:1::el5 | httpd-devel | before 0:2.2.17-15.4.ep5.el5 | 0:2.2.17-15.4.ep5.el5 |
| Red Hat:jboss_enterprise_web_server:1::el5 | httpd-manual | before 0:2.2.17-15.4.ep5.el5 | 0:2.2.17-15.4.ep5.el5 |
| Red Hat:jboss_enterprise_web_server:1::el5 | mod_ssl | before 1:2.2.17-15.4.ep5.el5 | 1:2.2.17-15.4.ep5.el5 |
| Red Hat:jboss_enterprise_web_server:1::el6 | httpd | before 0:2.2.17-15.4.ep5.el6 | 0:2.2.17-15.4.ep5.el6 |
| Red Hat:jboss_enterprise_web_server:1::el6 | httpd-devel | before 0:2.2.17-15.4.ep5.el6 | 0:2.2.17-15.4.ep5.el6 |
| Red Hat:jboss_enterprise_web_server:1::el6 | httpd-manual | before 0:2.2.17-15.4.ep5.el6 | 0:2.2.17-15.4.ep5.el6 |
| Red Hat:jboss_enterprise_web_server:1::el6 | httpd-tools | before 0:2.2.17-15.4.ep5.el6 | 0:2.2.17-15.4.ep5.el6 |
| Red Hat:jboss_enterprise_web_server:1::el6 | mod_ssl | before 1:2.2.17-15.4.ep5.el6 | 1:2.2.17-15.4.ep5.el6 |
Same product
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- CVE-2021-41773Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49KEV99Now
- CVE-2024-38475Apache HTTP Server weakness in mod_rewrite when first segment of substitution matches filesystem path.KEV96Now
- CVE-2019-0211In Apache HTTP Server 2.4 releases 2.4.17 to 2.4.38, with MPM event, worker or prefork, code executing in less-privileged child processes orKEV81Now
- CVE-2021-44790Possible buffer overflow when parsing multipart content in mod_lua of Apache HTTP Server 2.4.51 and earlier68This week
- CVE-2010-0425modules/arch/win32/mod_isapi.c in mod_isapi in the Apache HTTP Server 2.0.37 through 2.0.63, 2.2.0 through 2.2.14, and 2.3.x before 2.3.7, w68This week
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| debian:apache2 | 2.2.22-1 · Debian:12 | Package registry (OSV) |
| red hat:httpd | 0:2.2.15-15.el6_2.1 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:httpd-debuginfo | 0:2.2.15-15.el6_2.1 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:httpd-devel | 0:2.2.15-15.el6_2.1 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:httpd-manual | 0:2.2.15-15.el6_2.1 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:httpd-tools | 0:2.2.15-15.el6_2.1 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
| red hat:mod_ssl | 1:2.2.15-15.el6_2.1 · Red Hat:enterprise_linux:6::client | Package registry (OSV) |
Exploit status
Proof of concept available
A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.
Evidence
- Exploit-DB entry ×1
Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.
| Source | Kind | Date |
|---|---|---|
| Exploit-DB entry | dos | 2012-01-11 |
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
- First PoC-8 d
- Published
- TodaySep 30, 2026+5369 d
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
No commit or PR link among the references.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- P · data can be read
- Integrity
- P · data or configuration can be modified
- Availability
- P · the service can be disrupted
- Attack complexity
- Low
- Confidentiality impact
- P
- Integrity impact
- P
- Availability impact
- P
Weakness class (CWE)
—
CVSS vector
AV:L/AC:L/Au:N/C:P/I:P/A:P
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
MITRE has no CAPEC/ATT&CK mapping for this CWE.
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- h20000.www2.hp.com/bizsupport/TechSupport/Document.jsp?objectID=c03360041
- lists.apple.com/archives/security-announce/2012/Sep/msg00004.html
- lists.opensuse.org/opensuse-security-announce/2012-02/msg00026.html
- lists.opensuse.org/opensuse-security-announce/2012-03/msg00002.html
- marc.info/?l=bugtraq&m=133294460209056&w=2
- marc.info/?l=bugtraq&m=133494237717847&w=2
- marc.info/?l=bugtraq&m=134987041210674&w=2
- rhn.redhat.com/errata/RHSA-2012-0128.html
- rhn.redhat.com/errata/RHSA-2012-0542.html
- rhn.redhat.com/errata/RHSA-2012-0543.html
- secunia.com/advisories/47410
- secunia.com/advisories/48551
- support.apple.com/kb/HT5501
- svn.apache.org/viewvc?view=revision&revision=1230065
- www.debian.org/security/2012/dsa-2405
- www.mandriva.com/security/advisories?name=MDVSA-2012:012
- www.mandriva.com/security/advisories?name=MDVSA-2013:150
- www.oracle.com/technetwork/topics/security/cpujul2012-392727.html
- www.securityfocus.com/bid/51407
- bugzilla.redhat.com/show_bug.cgi?id=773744
Vendor advisories and official records. Exploit/PoC links are deliberately left out.