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Vulnerability record · CVE-2009-0842 · published 31 March 2009

CVE-2009-0842: Osgeo mapserver information exposure vulnerability

Osgeo · Mapserver

mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2 allows remote attackers to read arbitrary invalid .map files via a full pathname in the map parameter, which triggers the display of partial file contents within an error message, as demonstrated by a /tmp/sekrut.map symlink.

4.3 CVSS 2.0 Medium EPSS 2.6% · top 15.0% CWE-200 · Information exposure
4.3CVSS 2.0 base score
2.6%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
22References, 2 tagged exploit
16 Jun 2026Last modified by NVD

Description

mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2 allows remote attackers to read arbitrary invalid .map files via a full pathname in the map parameter, which triggers the display of partial file contents within an error message, as demonstrated by a /tmp/sekrut.map symlink.

AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://lists.osgeo.org/pipermail/mapserver-users/2009-March/060600.html PatchVendor Advisory
http://secunia.com/advisories/34520
http://secunia.com/advisories/34603
http://trac.osgeo.org/mapserver/ticket/2941
http://www.debian.org/security/2009/dsa-1914
http://www.positronsecurity.com/advisories/2009-000.html Exploit
http://www.securityfocus.com/archive/1/502271/100/0/threaded
http://www.securityfocus.com/bid/34306
http://www.securitytracker.com/id?1021952
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 PatchVendor Advisory
http://secunia.com/advisories/34520
http://secunia.com/advisories/34603
http://trac.osgeo.org/mapserver/ticket/2941
http://www.debian.org/security/2009/dsa-1914
http://www.positronsecurity.com/advisories/2009-000.html Exploit
http://www.securityfocus.com/archive/1/502271/100/0/threaded
http://www.securityfocus.com/bid/34306
http://www.securitytracker.com/id?1021952
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00147.html
https://www.redhat.com/archives/fedora-package-announce/2009-April/msg00170.html

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

10.0CVE-2010-2540Osgeo mapserver permissions and access controls vulnerabilitymapserv.c in mapserv in MapServer before 4.10.6 and 5.x before 5.6.4 does not properly restrict the use of CGI command-line arguments that were inten…EPSS 3.8%10.0CVE-2009-2281Osgeo mapserver memory buffer overflow vulnerabilityMultiple 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…EPSS 5.9%10.0CVE-2009-0839Osgeo mapserver memory buffer overflow vulnerabilityStack-based buffer overflow in mapserv.c in mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2, when the server has a map with a long IMAGEP…EPSS 9.0%10.0CVE-2009-0840Osgeo mapserver memory buffer overflow vulnerabilityHeap-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 at…EPSS 5.3%10.0CVE-2009-0841Osgeo mapserver path traversal vulnerabilityDirectory traversal vulnerability in mapserv.c in mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2, when running on Windows with Cygwin, a…EPSS 5.3%10.0CVE-2009-1176Osgeo mapserver memory buffer overflow vulnerabilitymapserv.c in mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2 does not ensure that the string holding the id parameter ends in a '\0' char…EPSS 4.1%10.0CVE-2009-1177Osgeo mapserver memory buffer overflow vulnerabilityMultiple stack-based buffer overflows in maptemplate.c in mapserv in MapServer 4.x before 4.10.4 and 5.x before 5.2.2 have unknown impact and remote …EPSS 2.9%9.8CVE-2017-5522Debian linux memory buffer overflow vulnerabilityStack-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 before 7.0.4 allows remote attackers to caus…EPSS 4.8%

Source: NIST National Vulnerability Database (record CVE-2009-0842), CISA KEV, FIRST EPSS (scores of 2026-09-29). This page is refreshed as NVD updates the record.