Explain 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 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.
Affected Products: n/a
References: [{'name': 'DSA-188', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2002/dsa-188'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://marc.info/?l=apache-httpd-announce&m=103367938230488&w=2'}, {'name': 'ESA-20021007-024', 'tags': ['vendor-advisory', 'x_refsource_ENGARDE'], 'url': 'http://www.linuxsecurity.com/advisories/other_advisory-2414.html'}, {'name': '20021105-01-I', 'tags': ['vendor-advisory', 'x_refsource_SGI'], 'url': 'ftp://patches.sgi.com/support/free/security/advisories/20021105-01-I'}, {'name': 'HPSBUX0210-224', 'tags': ['vendor-advisory', 'x_refsource_HP'], 'url': 'http://online.securityfocus.com/advisories/4617'}, {'name': 'DSA-187', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2002/dsa-187'}, {'name': 'SSRT090208', 'tags': ['vendor-advisory', 'x_refsource_HP'], 'url': 'http://marc.info/?l=bugtraq&m=130497311408250&w=2'}, {'name': '20021003 iDEFENSE Security Advisory 10.03.2002: Apache 1.3.x shared memory scoreboard vulnerabilities', 'tags': ['mailing-list', 'x_refsource_VULNWATCH'], 'url': 'http://archives.neohapsis.com/archives/vulnwatch/2002-q4/0012.html'}, {'tags': ['x_refsource_CONFIRM'], 'url': 'http://www.apacheweek.com/issues/02-10-04'}, {'name': '5884', 'tags': ['vdb-entry', 'x_refsource_BID'], 'url': 'http://www.securityfocus.com/bid/5884'}, {'name': 'DSA-195', 'tags': ['vendor-advisory', 'x_refsource_DEBIAN'], 'url': 'http://www.debian.org/security/2002/dsa-195'}, {'name': '20021003 [OpenPKG-SA-2002.009] OpenPKG Security Advisory (apache)', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://marc.info/?l=bugtraq&m=103376585508776&w=2'}, {'name': 'apache-scorecard-memory-overwrite(10280)', 'tags': ['vdb-entry', 'x_refsource_XF'], 'url': 'http://www.iss.net/security_center/static/10280.php'}, {'name': 'MDKSA-2002:068', 'tags': ['vendor-advisory', 'x_refsource_MANDRAKE'], 'url': 'http://www.linux-mandrake.com/en/security/2002/MDKSA-2002-068.php'}, {'name': 'HPSBOV02683', 'tags': ['vendor-advisory', 'x_refsource_HP'], 'url': 'http://marc.info/?l=bugtraq&m=130497311408250&w=2'}, {'name': 'CLA-2002:530', 'tags': ['vendor-advisory', 'x_refsource_CONECTIVA'], 'url': 'http://distro.conectiva.com.br/atualizacoes/?id=a&anuncio=000530'}, {'name': '20021017 TSLSA-2002-0069-apache', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://archives.neohapsis.com/archives/bugtraq/2002-10/0254.html'}, {'name': '20021015 GLSA: apache', 'tags': ['mailing-list', 'x_refsource_BUGTRAQ'], 'url': 'http://archives.neohapsis.com/archives/bugtraq/2002-10/0195.html'}, {'name': '[httpd-cvs] 20210330 svn commit: r1073139 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/json/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E'}, {'name': '[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', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org%3E'}, {'name': '[httpd-cvs] 20210330 svn commit: r1073149 [2/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/rd00b45b93fda4a5bd013b28587207d0e00f99f6e3308dbb6025f3b01%40%3Ccvs.httpd.apache.org%3E'}, {'name': '[httpd-cvs] 20210330 svn commit: r1073149 [1/13] - in /websites/staging/httpd/trunk/content: ./ security/ security/json/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E'}, {'name': '[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/', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/r8c9983f1172a3415f915ddb7e14de632d2d0c326eb1285755a024165%40%3Ccvs.httpd.apache.org%3E'}, {'name': '[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', 'tags': ['mailing-list', 'x_refsource_MLIST'], 'url': 'https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org%3E'}]
CVE State: PUBLISHED