CVE-2004-0493 EXPLOIT
6.4
MEDIUM · CVSS 2.0 · EPSS 84.8% (pctl 100)
Patch early
A public exploit exists.
Description
The ap_get_mime_headers_core function in Apache httpd 2.0.49 allows remote attackers to cause a denial of service (memory exhaustion), and possibly an integer signedness error leading to a heap-based buffer overflow on 64 bit systems, via long header lines with large numbers of space or tab characters.
Scoring
| CVSS | 6.4 (MEDIUM, v2.0) |
|---|---|
| Vector | AV:N/AC:L/Au:N/C:N/I:P/A:P |
| EPSS | 84.78% — more likely to be exploited than 100% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2004-08-06 |
| Last modified | 2026-06-16 |
Affected (8)
| Vendor | Product |
|---|---|
| apache | http server |
| avaya | converged communications server |
| avaya | s8300 |
| avaya | s8500 |
| avaya | s8700 |
| gentoo | linux |
| ibm | http server |
| trustix | secure linux |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Apache - Arbitrary Long HTTP Headers Denial of Service | 2004-08-02 |
| exploit-db | Apache - Arbitrary Long HTTP Headers (Denial of Service) | 2004-07-22 |
References
- http://lists.grok.org.uk/pipermail/full-disclosure/2004-June/023133.html
- http://marc.info/?l=bugtraq&m=108853066800184&w=2
- http://marc.info/?l=bugtraq&m=109181600614477&w=2
- http://security.gentoo.org/glsa/glsa-200407-03.xml
- http://www.apacheweek.com/features/security-20
- http://www.guninski.com/httpd1.html
- http://www.mandriva.com/security/advisories?name=MDKSA-2004:064
- http://www.redhat.com/support/errata/RHSA-2004-342.html
- http://www.securityfocus.com/bid/10619
- http://www.trustix.org/errata/2004/0039/
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16524
- https://lists.apache.org/thread.html/54a42d4b01968df1117cea77fc53d6beb931c0e05936ad02af93e9ac%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/5df9bfb86a3b054bb985a45ff9250b0332c9ecc181eec232489e7f79%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r0276683d8e1e07153fc8642618830ac0ade85b9ae0dc7b07f63bb8fc%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r2cb985de917e7da0848c440535f65a247754db8b2154a10089e4247b%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r5001ecf3d6b2bdd0b732e527654248abb264f08390045d30709a92f6%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/r8828e649175df56f1f9e3919938ac7826128525426e2748f0ab62feb%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r9e8622254184645bc963a1d47c5d47f6d5a36d6f080d8d2c43b2b142%40%3Ccvs.httpd.apache.org%3E
- https://lists.apache.org/thread.html/r9f93cf6dde308d42a9c807784e8102600d0397f5f834890708bf6920%40%3Ccvs.httpd.apache.org%3E
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