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Vulnerability record · CVE-2003-0542 · published 3 November 2003

CVE-2003-0542: Apache http server memory buffer overflow vulnerability

Apache · Http Server

Multiple stack-based buffer overflows in (1) mod_alias and (2) mod_rewrite for Apache before 1.3.29 allow attackers to create configuration files to cause a denial of service (crash) or execute arbitrary code via a regular expression with more than 9 captures.

7.2 CVSS 2.0 High EPSS 30% · top 1.8% CWE-119 · Memory buffer overflow
7.2CVSS 2.0 base score
30%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
106References
16 Jun 2026Last modified by NVD

Description

Multiple stack-based buffer overflows in (1) mod_alias and (2) mod_rewrite for Apache before 1.3.29 allow attackers to create configuration files to cause a denial of service (crash) or execute arbitrary code via a regular expression with more than 9 captures.

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

Affected products

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

References

LinkTags
ftp://ftp.sco.com/pub/updates/UnixWare/SCOSA-2004.6/SCOSA-2004.6.txt
ftp://patches.sgi.com/support/free/security/advisories/20031203-01-U.asc
ftp://patches.sgi.com/support/free/security/advisories/20040202-01-U.asc
http://docs.info.apple.com/article.html?artnum=61798
http://httpd.apache.org/dist/httpd/Announcement2.html
http://lists.apple.com/archives/security-announce/2004/Jan/msg00000.html
http://lists.apple.com/mhonarc/security-announce/msg00045.html
http://marc.info/?l=bugtraq&m=106761802305141&w=2
http://marc.info/?l=bugtraq&m=130497311408250&w=2
http://secunia.com/advisories/10096
http://secunia.com/advisories/10098
http://secunia.com/advisories/10102
http://secunia.com/advisories/10112
http://secunia.com/advisories/10114
http://secunia.com/advisories/10153
http://secunia.com/advisories/10260
http://secunia.com/advisories/10264
http://secunia.com/advisories/10463
http://secunia.com/advisories/10580
http://secunia.com/advisories/10593
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101444-1
http://sunsolve.sun.com/search/document.do?assetkey=1-26-101841-1
http://www.kb.cert.org/vuls/id/434566 US Government Resource
http://www.kb.cert.org/vuls/id/549142 US Government Resource
http://www.mandrakesecure.net/en/advisories/advisory.php?name=MDKSA-2003:103
http://www.redhat.com/support/errata/RHSA-2003-320.html
http://www.redhat.com/support/errata/RHSA-2003-360.html
http://www.redhat.com/support/errata/RHSA-2003-405.html
http://www.redhat.com/support/errata/RHSA-2004-015.html PatchVendor Advisory
http://www.redhat.com/support/errata/RHSA-2005-816.html
http://www.securityfocus.com/advisories/6079
http://www.securityfocus.com/archive/1/342674
http://www.securityfocus.com/bid/8911 PatchVendor Advisory
http://www.securityfocus.com/bid/9504
https://exchange.xforce.ibmcloud.com/vulnerabilities/13400
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

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Related vulnerabilities

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

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Source: NIST National Vulnerability Database (record CVE-2003-0542), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.