CVE-2003-0132
MediumPublic exploitA memory leak in Apache 2.0 through 2.0.44 allows remote attackers to cause a denial of service (memory consumption) via large chunks of linefeed characters, which causes Apache to allocate 80 bytes for each linefeed.
Published Apr 11, 2003 · Updated Aug 4, 2026 · Also known as DEBIAN-CVE-2003-0132
Key Facts
Patch immediately- CVE-2003-0132 is a medium-severity vulnerability (CVSS 5.0 v2) affecting HTTP Server (Apache), apache2 (debian), rootio-apache2.
- It is not listed in any known-exploited vulnerabilities catalog. Public exploit code is available.
- EPSS estimates a 87% probability of exploitation in the next 30 days.
- Fixed versions are available, including HTTP Server 2.0.44, apache2 2.0.45, rootio-apache2 2.0.45.
- Brandefense priority: patch immediately, because it is very likely to be exploited soon.
CVSS v2
5.0
AV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS (30-day exploit likelihood)
87%
Higher than 99.7% of all scored CVEs
Exploited in the wild
No known
Not in a known-exploited catalog
Public exploit code
Available
Proof-of-concept or weaponized module
Get the full CVE-2003-0132 brief as a PDF
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Description
A memory leak in Apache 2.0 through 2.0.44 allows remote attackers to cause a denial of service (memory consumption) via large chunks of linefeed characters, which causes Apache to allocate 80 bytes for each linefeed.
Affected Products
14 affected entries in total| Product | Affected versions | Fixed in |
|---|---|---|
| HTTP ServerApache | See advisory | 2.0.44 |
| apache2debian | See advisory | 2.0.45 |
| rootio-apache2rootio | See advisory | 2.0.45 |
Patched Releases
HTTP Server
2.0.44
apache2
2.0.45
rootio-apache2
2.0.45
Timeline
Publicly disclosed
Apr 11, 2003
Last updated
Aug 4, 2026
Weakness Type
- CWE-772 Missing Release of Resource after Effective Lifetime
References
- advisoryhttp://lists.apple.com/mhonarc/security-announce/msg00028.html
- advisory20030402 [ANNOUNCE] Apache 2.0.45 Released
- advisory20030408 iDEFENSE Security Advisory 04.08.03: Denial of Service in Apache HTTP Server 2.x
- advisory20030409 GLSA: apache (200304-01)
- advisory20030408 Exploit Code Released for Apache 2.x Memory Leak
FAQ
Common Questions.
A memory leak in Apache 2.0 through 2.0.44 allows remote attackers to cause a denial of service (memory consumption) via large chunks of linefeed characters, which causes Apache to allocate 80 bytes for each linefeed.
Affected: HTTP Server (Apache); apache2 (debian); rootio-apache2. The full list is in the CVE brief.
It is not listed in any known-exploited vulnerabilities catalog.
No, it is not currently listed in the CISA Known Exploited Vulnerabilities catalog.
Public exploit code is available.
Fixed versions are available, including HTTP Server 2.0.44, apache2 2.0.45, rootio-apache2 2.0.45.
Brandefense priority: patch immediately, because it is very likely to be exploited soon.
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