Description
A memory leak exists in the Grassroots DICOM library (GDCM). The bug occurs when parsing malformed DICOM files with non-standard VR types in file meta information. The vulnerability leads to vast memory allocations and resource depletion, triggering a denial-of-service condition. A maliciously crafted file can fill the heap in a single read operation without properly releasing it.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Grassroots | Grassroots DICOM (GDCM) | 3.2.2 | — |
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 | gdcm | 3.0.24-11 | — |
| Debian 13 | gdcm | No fix yet | — |
| Debian 12 | gdcm | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | gdcm | No fix yet | — |
| Ubuntu 26.04 LTS | gdcm | No fix yet | — |
| Ubuntu 25.10 | gdcm | No fix yet | — |
| Ubuntu 24.04 LTS | gdcm | No fix yet | — |
| Ubuntu 22.04 LTS | gdcm | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | gdcm | No fix yet | — |
| Ubuntu 18.04 LTS | gdcm | No fix yet | — |
| Ubuntu 16.04 LTS | gdcm | No fix yet | — |
| Ubuntu Pro 14.04 LTS | gdcm | No fix yet | — |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | insighttoolkit | 5.4.7-1.1 | openSUSE-SU-2026:11701-1 |
Advisories 2
- openSUSE-SU-2026:11701-1 insighttoolkit-devel-5.4.7-1.1 on GA media SUSE / openSUSE Security Updates · Sep 8, 2026
- ICSMA-26-083-01 Grassroots DICOM (GDCM) CISA ICS & IT advisories · Mar 24, 2026