{"id":"CVE-2004-0492","aliases":["DEBIAN-CVE-2004-0492","DSA-525","EUVD-2004-0491","GHSA-w59m-3c5g-3v9c"],"status":"published","title":"Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote...","description":"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 denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.","severity":{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-07","score":0.33639,"percentile":0.98395,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"published":"2004-06-23T04:00:00Z","modified":"2026-06-16T22:05:44Z","fixes":[{"ecosystem":"Debian:3.0","package":"apache","fixed_in":["1.3.26-0woody5"],"sources":["osv"]}],"affected":[{"source":"osv","ecosystem":"Debian:3.0","package":"apache","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.26-0woody5"}]}]}],"products":[{"vendor":"apache","product":"http_server"},{"vendor":"hp","product":"virtualvault"},{"vendor":"hp","product":"vvos"},{"vendor":"hp","product":"webproxy"},{"vendor":"ibm","product":"http_server"},{"vendor":"openbsd","product":"openbsd"},{"vendor":"sgi","product":"propack"}],"references":[{"url":"http://marc.info/?l=bugtraq\u0026m=108711172710140\u0026w=2","tags":["mailing-list","x_refsource_BUGTRAQ","x_transferred"]},{"url":"https://bugzilla.fedora.us/show_bug.cgi?id=1737","tags":["vendor-advisory","x_refsource_FEDORA","x_transferred"]},{"url":"http://rhn.redhat.com/errata/RHSA-2004-245.html","tags":["vendor-advisory","x_refsource_REDHAT","x_transferred","Patch","Vendor Advisory"]},{"url":"http://marc.info/?l=bugtraq\u0026m=130497311408250\u0026w=2","tags":["vendor-advisory","x_refsource_HP","x_transferred"]},{"url":"http://www.guninski.com/modproxy1.html","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://sunsolve.sun.com/search/document.do?assetkey=1-26-57628-1","tags":["vendor-advisory","x_refsource_SUNALERT","x_transferred"]},{"url":"http://seclists.org/lists/fulldisclosure/2004/Jun/0296.html","tags":["mailing-list","x_refsource_FULLDISC","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100112","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://www.mandriva.com/security/advisories?name=MDKSA-2004:065","tags":["vendor-advisory","x_refsource_MANDRAKE","x_transferred"]},{"url":"https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4863","tags":["vdb-entry","signature","x_refsource_OVAL","x_transferred"]},{"url":"http://sunsolve.sun.com/search/document.do?assetkey=1-26-101555-1","tags":["vendor-advisory","x_refsource_SUNALERT","x_transferred"]},{"url":"ftp://patches.sgi.com/support/free/security/advisories/20040605-01-U.asc","tags":["vendor-advisory","x_refsource_SGI","x_transferred"]},{"url":"http://www.debian.org/security/2004/dsa-525","tags":["vendor-advisory","x_refsource_DEBIAN","x_transferred","Patch","Vendor Advisory"]},{"url":"http://www.kb.cert.org/vuls/id/541310","tags":["third-party-advisory","x_refsource_CERT-VN","x_transferred","US Government Resource"]},{"url":"http://sunsolve.sun.com/search/document.do?assetkey=1-26-101841-1","tags":["vendor-advisory","x_refsource_SUNALERT","x_transferred"]},{"url":"http://secunia.com/advisories/11841","tags":["third-party-advisory","x_refsource_SECUNIA","x_transferred"]},{"url":"https://exchange.xforce.ibmcloud.com/vulnerabilities/16387","tags":["vdb-entry","x_refsource_XF","x_transferred"]},{"url":"https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/r734a07156abf332d5ab27fb91d9d962cacfef4f3681e44056f064fa8%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org%3E","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2004-0492"},{"url":"https://lists.apache.org/thread.html/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/r734a07156abf332d5ab27fb91d9d962cacfef4f3681e44056f064fa8@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/rd65d8ba68ba17e7deedafbf5bb4899f2ae4dad781d21b931c2941ac3@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/re895fc1736d25c8cf57e102c871613b8aeec9ea26fd8a44e7942b5ab@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e@%3Ccvs.httpd.apache.org%3E"},{"url":"https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9@%3Ccvs.httpd.apache.org%3E"},{"url":"https://github.com/advisories/GHSA-w59m-3c5g-3v9c"}],"sources":{"cve":[{"id":"CVE-2004-0492","description":"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 denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.","status":"published","published":"2004-06-23T04:00:00Z","modified":"2024-08-08T00:17:15.109Z","updated_at":"2026-11-02T14:34:54.398187Z"}],"euvd":[{"id":"EUVD-2004-0491","description":"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 denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.","status":"published","published":"2004-06-23T04:00:00Z","modified":"2024-08-08T00:17:15Z","updated_at":"2026-11-03T01:15:19.183327Z"}],"ghsa":[{"id":"GHSA-w59m-3c5g-3v9c","title":"Heap-based buffer overflow in proxy_util.c for mod_proxy in Apache 1.3.25 to 1.3.31 allows remote...","description":"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 denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.","status":"published","published":"2022-05-03T03:13:03Z","modified":"2023-02-01T05:01:08Z","updated_at":"2026-11-02T14:49:40.629091Z"}],"nvd":[{"id":"CVE-2004-0492","description":"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 denial of service (process crash) and possibly execute arbitrary code via a negative Content-Length HTTP header field, which causes a large amount of data to be copied.","status":"published","published":"2004-08-06T04:00:00Z","modified":"2026-06-16T22:05:44.587Z","cvss":[{"version":"2.0","score":10,"vector":"AV:N/AC:L/Au:N/C:C/I:C/A:C","level":"high","assessor":"primary"}],"updated_at":"2026-11-02T14:00:51.000028Z"}],"osv":[{"id":"DSA-525","title":"apache - buffer overflow","status":"published","published":"2004-06-24T00:00:00Z","modified":"2026-03-09T02:10:29.415302Z","updated_at":"2026-11-02T15:46:17.543497Z"}]}}