Description
netCDF in GDAL 2.4.2 through 3.0.4 has a stack-based buffer overflow in nc4_get_att (called from nc4_get_att_tc and nc_get_att_text) and in uffd_cleanup (called from netCDFDataset::~netCDFDataset and netCDFDataset::~netCDFDataset).
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | gdal | 3.1.0+dfsg-1 | — |
| Debian 13 | gdal | 3.1.0+dfsg-1 | — |
| Debian 12 | gdal | 3.1.0+dfsg-1 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 18.04 LTS | gdal | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gdal | No fix yet | — |
| Ubuntu Pro 14.04 LTS | gdal | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | gdal | >= 2.4.2, < 3.1.0 | 3.1.0 | PYSEC-2021-888 |
References
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/gdal/OSV-2020-392.yaml
- https://github.com/google/oss-fuzz-vulns/blob/main/vulns/gdal/OSV-2020-420.yaml
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15143
- https://github.com/OSGeo/gdal/commit/767e3a56144f676ca738ef8f700e0e56035bd05a
- https://github.com/OSGeo/gdal/commit/27b9bf644bcf1208f7d6594bdd104cc8a8bb0646
- https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=15156