CVE-2002-0839: n/a vulnerability

CVE-2002-0839: The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as t...

The shared memory scoreboard in the HTTP daemon for Apache 1.3.x before 1.3.27 allows any user running as the Apache UID to send a SIGUSR1 signal to any process as root, resulting in a denial of service (process kill) or possibly other behaviors that would not normally be allowed, by modifying the parent[].pid and parent[].last_rtime segments in the scoreboard.

UnknownCVSS not scoredNot KEV-listedUpdatedAug 8, 2024, 03:03 UTC (UTC+00:00)

Security readout for executives and security teams

This is an old Apache 1.3 flaw where someone already running with the Apache service account could make the root-owned parent process signal other processes. The main business risk is service disruption on legacy servers still running Apache before 1.3.27. Exposure is most likely on legacy Apache HTTP Server 1.3.x deployments before 1.3.27. The source bundle does not identify modern Apache 2.x impact or normalized CPEs. Practical exposure also requires an attacker to run as the Apache UID. Prioritize this when legacy Apache 1.3 remains in production, especially on shared hosting or servers running untrusted web applications. For current, supported Apache versions, the cited bundle does not establish exposure. Mitigation focus: Upgrade Apache 1.3.x deployments to at least 1.3.27 or a supported release.; Check vendor advisories for distribution-specific Apache packages and backported fixes.; Retire unsupported Apache 1.3 systems where feasible..

Prepared: Jul 1, 2026, 06:00 UTC (UTC+00:00)

Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.

Potential ATT&CK relevance

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Vulnerability profileCVE Program record

Severity: Unknown
CVSS: Not scored
Known Exploited: No
Published: Oct 5, 2002, 04:00 UTC (UTC+00:00)

Official CVE source material

CNA and ADP enrichment extracted from CVE v5

These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.

0CVSS vectors

0Timeline events

0ADP providers

7Source links

CVSS and timeline data

No CVSS vectors or timeline events were available in the normalized CVE source material.

Source materials

CVE List V5 sourceCVE List V5
[httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210330 svn commit: r1073140 [1/4] - in /websites/staging/httpd/trunk/content: ./ security/cvejsontohtml.py security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.htmlCVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210330 svn commit: r1073149 [2/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/CVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/CVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210422 svn commit: r1074079 [2/3] - in /websites/staging/httpd/trunk/content: ./ apreq/ contribute/ contributors/ dev/ docs-project/ docs/ info/ mod_fcgid/ mod_ftp/ mod_mbox/ mod_smtpd/ modules/ security/ test/ test/flood/CVE reference · mailing-list, x_refsource_MLIST
[httpd-cvs] 20210606 svn commit: r1075470 [1/4] - in /websites/staging/httpd/trunk/content: ./ security/json/CVE-2020-13938.json security/vulnerabilities_13.html security/vulnerabilities_20.html security/vulnerabilities_22.html security/vulnerabilities_24.htmlCVE reference · mailing-list, x_refsource_MLIST

Affected products

Products and packages named in the record

VendorProductVersion / packageStatus

n/an/an/aListed

Weakness

CWE details

No CWE listed

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