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    CVE-2009-0840

    Heap-based buffer underflow in the readPostBody function in cgiutil.c in mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2 allows remote attackers to have an unknown impact via a negative value in the Content-Length HTTP header.

    Published:Mar 31, 2009
    Last Modified:Apr 23, 2026
    EPS:Mar 31, 2009
    EPSS Score:0.02704
    CVSS Score:10

    Affected Products

    Vendor
    Osgeo
    Product
    Mapserver
    Vendor
    Umn
    Product
    Mapserver

    Exploits

    http://www.positronsecurity.com/advisories/2009-000.htmlhttp://www.positronsecurity.com/advisories/2009-000.html

    Related CVEs

    CVE-2026-45104 (CVSS 7.5) — MapServer is a system for developing web-based GIS applications. From 6.4.0 to before 8.6.3, msSLDParseUserSty…
    CVE-2026-42030 (CVSS 6.1) — MapServer is a system for developing web-based GIS applications. From version 6.0 to before version 8.6.2, a r…
    CVE-2026-33721 (CVSS 5.3) — MapServer is a system for developing web-based GIS applications. Starting in version 4.2 and prior to version …
    CVE-2025-59431 (CVSS 8.9) — MapServer is a system for developing web-based GIS applications. Prior to 8.4.1, the XML Filter Query directiv…
    CVE-2021-32062 (CVSS 5.3) — MapServer before 7.0.8, 7.1.x and 7.2.x before 7.2.3, 7.3.x and 7.4.x before 7.4.5, and 7.5.x and 7.6.x before…
    CVE-2010-1678 (CVSS 7.5) — Mapserver 5.2, 5.4 and 5.6 before 5.6.5-2 improperly validates symbol index values during Mapfile parsing.…
    CVE-2017-5522 (CVSS 9.8) — Stack-based buffer overflow in MapServer before 6.0.6, 6.2.x before 6.2.4, 6.4.x before 6.4.5, and 7.0.x befor…
    CVE-2016-9839 (CVSS 7.5) — In MapServer before 7.0.3, OGR driver error messages are too verbose and may leak sensitive information if dat…
    CVE-2013-7262 (CVSS 6.8) — SQL injection vulnerability in the msPostGISLayerSetTimeFilter function in mappostgis.c in MapServer before 6.…
    CVE-2011-2975 (CVSS 6.8) — Double free vulnerability in the msAddImageSymbol function in mapsymbol.c in MapServer before 6.0.1 might allo…

    References

    http://lists.osgeo.org/pipermail/mapserver-users/2009-March/060600.html
    http://secunia.com/advisories/34520
    http://secunia.com/advisories/34603
    http://trac.osgeo.org/mapserver/ticket/2943
    http://www.debian.org/security/2009/dsa-1914
    http://www.positronsecurity.com/advisories/2009-000.html
    http://www.securityfocus.com/archive/1/502271/100/0/threaded
    http://www.securityfocus.com/bid/34306
    http://www.securitytracker.com/id?1021952
    https://exchange.xforce.ibmcloud.com/vulnerabilities/49545
    https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00147.html
    https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00170.html
    http://lists.osgeo.org/pipermail/mapserver-users/2009-March/060600.html
    http://secunia.com/advisories/34520
    http://secunia.com/advisories/34603
    http://trac.osgeo.org/mapserver/ticket/2943
    http://www.debian.org/security/2009/dsa-1914
    http://www.positronsecurity.com/advisories/2009-000.html
    http://www.securityfocus.com/archive/1/502271/100/0/threaded
    http://www.securityfocus.com/bid/34306
    http://www.securitytracker.com/id?1021952
    https://exchange.xforce.ibmcloud.com/vulnerabilities/49545
    https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00147.html
    https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00170.html

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High