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    CVE-2004-0940

    Buffer overflow in the get_tag function in mod_include for Apache 1.3.x to 1.3.32 allows local users who can create SSI documents to execute arbitrary code as the apache user via SSI (XSSI) documents that trigger a length calculation error.

    Published:Oct 21, 2004
    Last Modified:Apr 16, 2026
    EPS:Oct 26, 2004
    EPSS Score:0.03684
    CVSS Score:7.8

    Affected Products

    Vendor
    Apache
    Product
    Http Server
    Vendor
    Hp
    Product
    Hp-ux
    Vendor
    Openpkg
    Product
    Openpkg
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Stronghold
    Vendor
    Redhat
    Product
    Stronghold
    Vendor
    Slackware
    Product
    Slackware Linux
    Vendor
    Suse
    Product
    Suse Linux
    Vendor
    Trustix
    Product
    Secure Linux

    Exploits

    http://www.securityfocus.com/bid/11471http://www.securityfocus.com/bid/11471https://www.exploit-db.com/exploits/587https://www.exploit-db.com/exploits/24694

    Common Attack Pattern Enumeration and Classification (CAPEC)

    CAPEC-100 Overflow Buffers
    CAPEC-47 Buffer Overflow via Parameter Expansion

    Related CVEs

    CVE-2026-48913 (CVSS 7.3) — Use After Free vulnerability in Apache HTTP Server module mod_http2 when file handles are already exhausted. …
    CVE-2026-42536 (CVSS 7.5) — Heap-based Buffer Overflow vulnerability in Apache HTTP Server with mod_xml2enc, xml2StartParse, and untrusted…
    CVE-2026-44185 (CVSS 7.3) — Buffer Over-read vulnerability in Apache HTTP Server via outbound OCSP requests to an attacker controlled OCSP…
    CVE-2026-34355 (CVSS 7.5) — A buffer overflow in mod_proxy_html in Apache HTTP Server 2.4.67 and earlier allows an attack by an untrusted …
    CVE-2026-44631 (CVSS 9.8) — Buffer Underwrite vulnerability in Apache HTTP Server on crafted regular expressions in the configuration. Th…
    CVE-2026-44119 (CVSS 5.5) — Improper Privilege Management vulnerability in Apache HTTP Server 2.4.67 and earlier allows local .htaccess au…
    CVE-2026-43951 (CVSS 6.5) — Out-of-bounds Read vulnerability in Apache HTTP Server with mod_headers and mod_mime and multiple response lan…
    CVE-2026-42535 (CVSS 9.1) — A path handling issue in mod_dav_fs in Apache 2.4.67 and earlier allows a WebDAV content author to directly ma…
    CVE-2026-34356 (CVSS 7.5) — Heap-based Buffer Overflow vulnerability in Apache HTTP Server with malicious backend servers and ProxyPassRev…
    CVE-2026-44186 (CVSS 7.3) — Loop with Unreachable Exit Condition ('Infinite Loop') vulnerability in the mod_proxy_ftp module in Apache HTT…

    References

    http://marc.info/?l=bugtraq&m=109906660225051&w=2
    http://secunia.com/advisories/12898/
    http://secunia.com/advisories/19073
    http://securitytracker.com/id?1011783
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-102197-1
    http://support.avaya.com/elmodocs2/security/ASA-2006-081.htm
    http://www.apacheweek.com/features/security-13
    http://www.debian.org/security/2004/dsa-594
    http://www.mandriva.com/security/advisories?name=MDKSA-2004:134
    http://www.redhat.com/support/errata/RHSA-2004-600.html
    http://www.redhat.com/support/errata/RHSA-2005-816.html
    http://www.securityfocus.com/bid/11471
    http://www.vupen.com/english/advisories/2006/0789
    https://exchange.xforce.ibmcloud.com/vulnerabilities/17785
    https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r734a07156abf332d5ab27fb91d9d962cacfef4f3681e44056f064fa8%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E
    http://marc.info/?l=bugtraq&m=109906660225051&w=2
    http://secunia.com/advisories/12898/
    http://secunia.com/advisories/19073
    http://securitytracker.com/id?1011783
    http://sunsolve.sun.com/search/document.do?assetkey=1-26-102197-1
    http://support.avaya.com/elmodocs2/security/ASA-2006-081.htm
    http://www.apacheweek.com/features/security-13
    http://www.debian.org/security/2004/dsa-594
    http://www.mandriva.com/security/advisories?name=MDKSA-2004:134
    http://www.redhat.com/support/errata/RHSA-2004-600.html
    http://www.redhat.com/support/errata/RHSA-2005-816.html
    http://www.securityfocus.com/bid/11471
    http://www.vupen.com/english/advisories/2006/0789
    https://exchange.xforce.ibmcloud.com/vulnerabilities/17785
    https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r734a07156abf332d5ab27fb91d9d962cacfef4f3681e44056f064fa8%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org%3E
    https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High