Every CVE Search/ Get API key

CVE-2004-0493

The ap_get_mime_headers_core function in Apache httpd 2.0.49 allows remote attackers to cause a...

6.4 MediumPublic exploitFix available

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.

Exploit likelihood

84.8%Up 39.2 points since Feb 4, 2022
90%50%10%1%

What each source reports

NVD Score used 6.4

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.

Record
CVE-2004-0493
CVSS 2.0
6.4 MediumAV:N/AC:L/Au:N/C:N/I:P/A:P
Updated
2026-11-02
CVE List No score

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.

Record
CVE-2004-0493
Updated
2026-11-02
EUVDEUVD-2004-0492 No score

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.

Record
EUVD-2004-0492
Updated
2026-11-03
GitHub AdvisoriesGHSA-jc6w-8vm4-hvp8 No score

The ap_get_mime_headers_core function in Apache httpd 2.0.49 allows remote attackers to cause a...

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.

Record
GHSA-jc6w-8vm4-hvp8
Updated
2026-11-02
OSVBELL-CVE-2004-0493 6.4

CVE-2004-0493 does not affect BellSoft software

Record
BELL-CVE-2004-0493
CVSS 2.0
6.4 MediumAV:N/AC:L/Au:N/C:N/I:P/A:P
Updated
2026-11-02
OSV No score

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.

Record
CVE-2004-0493
Updated
2026-11-02
OSVDEBIAN-CVE-2004-0493 No score

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.

Record
DEBIAN-CVE-2004-0493
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
apache2
Debian:12
 before 2.0.50-1
2.0.50-1
apache2
Debian:13
 before 2.0.50-1
2.0.50-1
apache2
Debian:14
 before 2.0.50-1
2.0.50-1
httpd
Red Hat:enterprise_linux:3::as
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
httpd-debuginfo
Red Hat:enterprise_linux:3::as
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
httpd-devel
Red Hat:enterprise_linux:3::as
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
mod_ssl
Red Hat:enterprise_linux:3::as
From an advisory covering 2 CVEs
 before 1:2.0.46-32.ent.3
1:2.0.46-32.ent.3
httpd
Red Hat:enterprise_linux:3::desktop
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
httpd-debuginfo
Red Hat:enterprise_linux:3::desktop
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
httpd-devel
Red Hat:enterprise_linux:3::desktop
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
Show 9 moreShow less
Affected packages
PackageAffectedFixed
mod_ssl
Red Hat:enterprise_linux:3::desktop
From an advisory covering 2 CVEs
 before 1:2.0.46-32.ent.3
1:2.0.46-32.ent.3
httpd
Red Hat:enterprise_linux:3::es
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
httpd-debuginfo
Red Hat:enterprise_linux:3::es
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
httpd-devel
Red Hat:enterprise_linux:3::es
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
mod_ssl
Red Hat:enterprise_linux:3::es
From an advisory covering 2 CVEs
 before 1:2.0.46-32.ent.3
1:2.0.46-32.ent.3
httpd
Red Hat:enterprise_linux:3::ws
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
httpd-debuginfo
Red Hat:enterprise_linux:3::ws
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
httpd-devel
Red Hat:enterprise_linux:3::ws
From an advisory covering 2 CVEs
 before 0:2.0.46-32.ent.3
0:2.0.46-32.ent.3
mod_ssl
Red Hat:enterprise_linux:3::ws
From an advisory covering 2 CVEs
 before 1:2.0.46-32.ent.3
1:2.0.46-32.ent.3

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
SourceLinkDate
Exploit-DBApache - Arbitrary Long HTTP Headers (Denial of Service)2004-07-22
Exploit-DBApache - Arbitrary Long HTTP Headers Denial of Service2004-08-02

History

History
RecordedChangedSources
affected, facts
aliasesEUVD
first indexedCVE List, Exploit-DB, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2004-0493 is a medium vulnerability (CVSS 6.4) in Apache Http Server, published June 30, 2004. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 84.8%, the 99th percentile. Fixed in apache2 2.0.50-1.

References

Show 46 moreShow less
Pages All vulnerabilities Browse Docs Sources Guide Get API key
MoveEnter Open