CVE-2003-0542
CVE-2003-0542 is a high-severity vulnerability in Apache Http Server with a CVSS 2.0 base score of 7.2. Its EPSS exploit-prediction score of 13% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-119.
Key facts
- Severity: High (CVSS 2.0 base score 7.2)
- EPSS exploit prediction: 13% (96th percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-119
- Affected product: Apache Http Server
- Published:
- Last modified:
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.
Frequently asked questions
- What is CVE-2003-0542?
- 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.
- How severe is CVE-2003-0542?
- CVE-2003-0542 has a CVSS 2.0 base score of 7.2, rated high severity.
- Is CVE-2003-0542 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 13% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2003-0542?
- CVE-2003-0542 primarily affects Apache Http Server. In total, 36 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2003-0542?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
- When was CVE-2003-0542 published?
- CVE-2003-0542 was published on 2003-11-03 and last updated on 2026-06-16.
References
- 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
- http://www.kb.cert.org/vuls/id/549142
- 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
- http://www.redhat.com/support/errata/RHSA-2005-816.html
Affected products (36)
- cpe:2.3:a:apache:http_server:1.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.1:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.3:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.4:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.6:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.9:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.11:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.12:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.14:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.17:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.18:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.19:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.20:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.22:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.23:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.24:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.25:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.26:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.27:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:1.3.28:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.28:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.32:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.35:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.36:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.37:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.38:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.39:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.40:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.41:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.42:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.43:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.44:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.45:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.46:*:*:*:*:*:*:*
- cpe:2.3:a:apache:http_server:2.0.47:*:*:*:*:*:*:*
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- CVE-2004-0492 — Critical (CVSS 10.0): Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote attackers to cause a…
- CVE-2003-0789 — Critical (CVSS 10.0): mod_cgid in Apache before 2.0.48, when using a threaded MPM, does not properly handle CGI redirect paths, which could…
- CVE-1999-1293 — Critical (CVSS 10.0): mod_proxy in Apache 1.2.5 and earlier allows remote attackers to cause a denial of service via malformed FTP commands,…
- CVE-1999-0926 — Critical (CVSS 10.0): Apache allows remote attackers to conduct a denial of service via a large number of MIME headers.
All CVEs affecting Apache Http Server →
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