CVE-2009-0840 describes a critical heap-based buffer underflow in the readPostBody function of MapServer versions 4.x before 4.10.4 and 5.x before 5.2.2. This vulnerability allows remote attackers to achieve a complete compromise of confidentiality, integrity, and availability by sending a negative Content-Length HTTP header. With a CVSS score of 10.0, it is easily exploitable over the network with low attack complexity and no authentication required. Despite its severity, there is no public exploit code available, nor is it listed in the KEV catalog, indicating no active exploitation. Community discussion and media coverage for this CVE are minimal.
| Vendor | Product | Version(s) | CPE |
|---|---|---|---|
4.2.0CPE matchmatch criteria | cpe:2.3:a:osgeo:mapserver:4.2.0:beta1:*:*:*:*:*:* | ||
4.4.0CPE matchmatch criteria | cpe:2.3:a:osgeo:mapserver:4.4.0:*:*:*:*:*:*:* | ||
4.4.0CPE matchmatch criteria | cpe:2.3:a:osgeo:mapserver:4.4.0:beta1:*:*:*:*:*:* | ||
4.4.0CPE matchmatch criteria | cpe:2.3:a:osgeo:mapserver:4.4.0:beta2:*:*:*:*:*:* | ||
4.4.0CPE matchmatch criteria | cpe:2.3:a:osgeo:mapserver:4.4.0:beta3:*:*:*:*:*:* |
CVSS version used by this source: 2.0
AV:N/AC:L/Au:N/C:C/I:C/A:C
No social media mentions found for this CVE.
The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.1 Mastodon, and 0.4 GitHub mentions.
No media coverage found for this CVE.
The average CVE in this peer group has 0.1 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.