Description
GnuPG can be made to spin on a relatively small input by (for example) crafting a public key with thousands of signatures attached, compressed down to just a few KB.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| — | gnupg | gnupg2 | — |
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 | gnupg2 | No fix yet | — |
| Debian 13 | gnupg2 | No fix yet | — |
| Debian 12 | gnupg2 | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 25.10 | gnupg2 | No fix yet | — |
| Ubuntu 24.04 LTS | gnupg2 | No fix yet | — |
| Ubuntu 22.04 LTS | gnupg2 | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 20.04 LTS | gnupg2 | No fix yet | — |
| Ubuntu Pro 18.04 LTS | gnupg2 | No fix yet | — |
| Ubuntu Pro 16.04 LTS | gnupg +1 | No fix yet | — |
| Ubuntu Pro 14.04 LTS | gnupg | No fix yet | — |