CVE-2017-5522 — Stack-based buffer overflow in MapServer before 6

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 before 7.0.4 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving WFS get feature requests.

01What is this vulnerability?

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 before 7.0.4 allows remote attackers to cause a denial of service (crash) or execute arbitrary code via vectors involving WFS get feature requests.

02Affected products

No structured affected-product list available — see references below for vendor advisories.

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

• Patch to a fixed version listed in the vendor advisory (see references below).
• Mitigate with WAF rules, network egress filters, or feature flags where the patch is not yet available.
• Hunt historical logs for exploitation indicators — see Detection signatures below.

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

• Published: 2017-03-15T16:59:00.283
• Last modified: 2026-05-13T00:24:29.033

09References

• www.debian.org — http://www.debian.org/security/2017/dsa-3766
• www.mapserver.org — http://www.mapserver.org/development/changelog/changelog-6-0-6.html#changelog-6-…
• www.mapserver.org — http://www.mapserver.org/development/changelog/changelog-6-2-4.html#changelog-6-…
• www.mapserver.org — http://www.mapserver.org/development/changelog/changelog-6-4.html#changelog-6-4-…
• www.mapserver.org — http://www.mapserver.org/development/changelog/changelog-7-0.html#changelog-7-0-…
• github.com — https://github.com/mapserver/mapserver/commit/e52a436c0e1c5e9f7ef13428dba83194a8…
• lists.osgeo.org — https://lists.osgeo.org/pipermail/mapserver-dev/2017-January/015007.html
• www.debian.org — http://www.debian.org/security/2017/dsa-3766
• www.mapserver.org — http://www.mapserver.org/development/changelog/changelog-6-0-6.html#changelog-6-…
• www.mapserver.org — http://www.mapserver.org/development/changelog/changelog-6-2-4.html#changelog-6-…