MapServer: NULL pointer dereference in SLD `<ElseFilter>` rule parsing reachable via WMS `SLD_BODY`
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| MapServer | MapServer | affected |
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Mapserver | Mapserver |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.320% probability within 30 days)
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Osgeo
Osgeo mapserver |
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| CPEs | cpe:2.3:a:osgeo:mapserver:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Osgeo
Osgeo mapserver |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
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| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mapserver
Mapserver mapserver |
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| Vendors & Products |
Mapserver
Mapserver mapserver |
| Type | Values Removed | Values Added |
|---|---|---|
| Description | MapServer is a system for developing web-based GIS applications. From 6.4.0 to before 8.6.3, msSLDParseUserStyle always calls _SLDApplyRuleValues(psRule, psLayer, 1); for any <Rule> carrying <ElseFilter/> — it assumes msSLDParseRule added one class. When the rule has no symbolizer (a structurally valid SLD), msSLDParseRule adds zero, and _SLDApplyRuleValues ends up indexing _class[-1], resulting in a NULL pointer dereference. A 200-byte well-formed SLD via the WMS SLD_BODY= parameter is enough to trigger this, no auth required. This vulnerability is fixed in 8.6.3. | |
| Title | MapServer: NULL pointer dereference in SLD `<ElseFilter>` rule parsing reachable via WMS `SLD_BODY` | |
| Weaknesses | CWE-129 CWE-476 |
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| References |
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| Metrics |
cvssV3_1
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