Description
Botan is a C++ cryptography library. From version 3.0.0 to before version 3.11.0, during X509 path validation, OCSP responses were checked for an appropriate status code, but critically omitted verifying the signature of the OCSP response itself. This issue has been patched in version 3.11.0.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| randombit | botan | >= 3.0.0, < 3.11.0 | — |
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 | botan3 | 3.11.0+dfsg-2 | — |
| Debian 13 | botan3 | 3.11.0+dfsg-2 | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | botan3 | No fix yet | — |
| Ubuntu 26.04 LTS | botan3 | No fix yet | — |
| Ubuntu 25.10 | botan +1 | No fix yet | — |
| Ubuntu 20.04 LTS | botan | No fix yet | — |
| Ubuntu 18.04 LTS | botan | No fix yet | — |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | botan1.10 | No fix yet | — |
| Ubuntu Pro 24.04 LTS | botan | No fix yet | — |
| Ubuntu Pro 22.04 LTS | botan | No fix yet | — |
| Ubuntu Pro 14.04 LTS | botan1.10 | No fix yet | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | botan3 | 3.11.0-r0 | — |