CVE-2009-2281
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in...
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x through 4.10.4 and 5.x before 5.4.2 allow remote attackers to execute arbitrary code via (1) a crafted Content-Length HTTP header or (2) a large HTTP request, related to an integer overflow that triggers a heap-based buffer overflow. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-0840.
Exploit likelihood
What each source reports
NVD Score used
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x through 4.10.4 and 5.x before 5.4.2 allow remote attackers to execute arbitrary code via (1) a crafted Content-Length HTTP header or (2) a large HTTP request, related to an integer overflow that triggers a heap-based buffer overflow. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-0840.
- Record
CVE-2009-2281- CVSS 2.0
- 10.0 High
AV:N/AC:L/Au:N/C:C/I:C/A:C - Weakness
- CWE-119
- Updated
- 2026-11-02
CVE List No score
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x through 4.10.4 and 5.x before 5.4.2 allow remote attackers to execute arbitrary code via (1) a crafted Content-Length HTTP header or (2) a large HTTP request, related to an integer overflow that triggers a heap-based buffer overflow. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-0840.
- Record
CVE-2009-2281- Updated
- 2026-11-02
EUVDEUVD-2009-2277 No score
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x through 4.10.4 and 5.x before 5.4.2 allow remote attackers to execute arbitrary code via (1) a crafted Content-Length HTTP header or (2) a large HTTP request, related to an integer overflow that triggers a heap-based buffer overflow. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-0840.
- Record
EUVD-2009-2277- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-6726-5cj2-9h6f No score
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in...
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x through 4.10.4 and 5.x before 5.4.2 allow remote attackers to execute arbitrary code via (1) a crafted Content-Length HTTP header or (2) a large HTTP request, related to an integer overflow that triggers a heap-based buffer overflow. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-0840.
- Record
GHSA-6726-5cj2-9h6f- Weakness
- CWE-119
- Updated
- 2026-11-02
OSV No score
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x through 4.10.4 and 5.x before 5.4.2 allow remote attackers to execute arbitrary code via (1) a crafted Content-Length HTTP header or (2) a large HTTP request, related to an integer overflow that triggers a heap-based buffer overflow. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-0840.
- Record
CVE-2009-2281- Updated
- 2026-11-02
OSVDEBIAN-CVE-2009-2281 No score
Multiple heap-based buffer underflows in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x through 4.10.4 and 5.x before 5.4.2 allow remote attackers to execute arbitrary code via (1) a crafted Content-Length HTTP header or (2) a large HTTP request, related to an integer overflow that triggers a heap-based buffer overflow. NOTE: this issue reportedly exists because of an incomplete fix for CVE-2009-0840.
- Record
DEBIAN-CVE-2009-2281- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
mapserverDebian:12 |
before 5.4.2-1 | 5.4.2-1 |
mapserverDebian:13 |
before 5.4.2-1 | 5.4.2-1 |
mapserverDebian:14 |
before 5.4.2-1 | 5.4.2-1 |
mapserverDebian:4.0 From an advisory covering 7 CVEs |
before 4.10.0-5.1+etch4, plus listed versions 4.10.0-5+etch14.10.0-5.1+etch2 |
4.10.0-5.1+etch4 |
mapserverDebian:5.0 From an advisory covering 7 CVEs |
before 5.0.3-3+lenny4, plus listed versions 5.0.3-3 |
5.0.3-3+lenny4 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, facts | ||
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2009-2281 is a high vulnerability (CVSS 10.0) in Osgeo Mapserver, published October 22, 2009. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 5.95%, the 93rd percentile. Fixed in mapserver 5.4.2-1.
References
openwall.com/lists/oss-security/2009/07/01/6
security.debian.org/pool/updates/main/m/mapserver/mapserver_4.10.0-5.1+etch4.diff.gz
trac.osgeo.org/mapserver/browser/tags/rel-5-4-2/mapserver/HISTORY.TXT
debian.org/security/2009/dsa-1914