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Vulnerability record · CVE-2003-0020 · published 18 March 2003

CVE-2003-0020: Apache http server vulnerability

Apache · Http Server

Apache does not filter terminal escape sequences from its error logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences.

5.0 CVSS 2.0 Medium EPSS 16% · top 3.1%
5.0CVSS 2.0 base score
16%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
76References
16 Jun 2026Last modified by NVD

Description

Apache does not filter terminal escape sequences from its error logs, which could make it easier for attackers to insert those sequences into terminal emulators containing vulnerabilities related to escape sequences.

AV:N/AC:L/Au:N/C:N/I:P/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0093.html Broken Link
http://frontal2.mandriva.com/security/advisories?name=MDKSA-2004:046 Third Party Advisory
http://marc.info/?l=bugtraq&m=104612710031920&w=2 Third Party Advisory
http://marc.info/?l=bugtraq&m=108369640424244&w=2 Third Party Advisory
http://marc.info/?l=bugtraq&m=108437852004207&w=2 Third Party Advisory
http://marc.info/?l=bugtraq&m=108731648532365&w=2 Third Party Advisory
http://security.gentoo.org/glsa/glsa-200405-22.xml Third Party Advisory
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101555-1 Broken Link
http://sunsolve.sun.com/search/document.do?assetkey=1-26-57628-1 Broken Link
http://www.iss.net/security_center/static/11412.php Broken Link
http://www.mandrakesoft.com/security/advisories?name=MDKSA-2003:050 Broken Link
http://www.redhat.com/support/errata/RHSA-2003-082.html Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2003-083.html Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2003-104.html Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2003-139.html Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2003-243.html Third Party Advisory
http://www.redhat.com/support/errata/RHSA-2003-244.html Third Party Advisory
http://www.securityfocus.com/bid/9930 Third Party AdvisoryVDB Entry
http://www.slackware.com/security/viewer.php?l=slackware-security&y=2004&m=slackware-security.529643 Mailing ListThird Party Advisory
http://www.trustix.org/errata/2004/0017 Broken Link
http://www.trustix.org/errata/2004/0027 Broken Link
https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%
https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r7035b7c9091c4b665a3b7205364775410646f12125d48e74e395f2ce%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rd00b45b93fda4a5bd013b28587207d0e00f99f6e3308dbb6025f3b01%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/re028d61fe612b0908595d658b9b39e74bca56f2a1ed3c5f06b5ab571%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org
https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100109 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A150 Third Party Advisory
https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4114 Third Party Advisory
http://archives.neohapsis.com/archives/vulnwatch/2003-q1/0093.html Broken Link
http://frontal2.mandriva.com/security/advisories?name=MDKSA-2004:046 Third Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2003-0020), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.