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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 the Apache UID to send a SIGUSR1…
High7.2EPSS 0.94%
- Published
- Updated
- Reserved
- Assigned by
- mitre
Description
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.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Modified | 2.0 | High7.2 | AV:L/AC:L/Au:N/C:C/I:C/A:C |
- EPSS (exploitation in 30 days)
- 0.94% · top 39% of all CVEs (2 Nov 2026)
Loading the EPSS history…
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.2.
Weakness
- n/a
Affected products
n/a
- affected n/a
References (22)
- DSA-188 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- http://marc.info/?l=apache-httpd-announce&m=103367938230488&w=2 (opens in a new tab)x_refsource_CONFIRMx_transferred
- ESA-20021007-024 (opens in a new tab)vendor-advisoryx_refsource_ENGARDEx_transferred
- HPSBUX0210-224 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- DSA-187 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- SSRT090208 (opens in a new tab)vendor-advisoryx_refsource_HPx_transferred
- 20021003 iDEFENSE Security Advisory 10.03.2002: Apache 1.3.x shared memory scoreboard vulnerabilities (opens in a new tab)mailing-listx_refsource_VULNWATCHx_transferred
- http://www.apacheweek.com/issues/02-10-04 (opens in a new tab)x_refsource_CONFIRMx_transferred
- 5884 (opens in a new tab)vdb-entryx_refsource_BIDx_transferred
- DSA-195 (opens in a new tab)vendor-advisoryx_refsource_DEBIANx_transferred
- 20021003 [OpenPKG-SA-2002.009] OpenPKG Security Advisory (apache) (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- apache-scorecard-memory-overwrite(10280) (opens in a new tab)vdb-entryx_refsource_XFx_transferred
- MDKSA-2002:068 (opens in a new tab)vendor-advisoryx_refsource_MANDRAKEx_transferred
- CLA-2002:530 (opens in a new tab)vendor-advisoryx_refsource_CONECTIVAx_transferred
- 20021017 TSLSA-2002-0069-apache (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- 20021015 GLSA: apache (opens in a new tab)mailing-listx_refsource_BUGTRAQx_transferred
- [httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [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.html (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1073149 [2/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [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/ (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
- [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.html (opens in a new tab)mailing-listx_refsource_MLISTx_transferred
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Record last updated .