Description
When AdaCore Ada Web Server 25.0.0 is linked with GnuTLS, the default behaviour of AWS.Client is vulnerable to a man-in-the-middle attack because of lack of verification of an HTTPS server's certificate (unless the using program specifies a TLS configuration).
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 11 | libaws | 20.2-2+deb11u1 | DLA-4080-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 22.04 LTS | libaws | No fix yet | — |
| Ubuntu 20.04 LTS | libaws | No fix yet | — |
| Ubuntu 18.04 LTS | libaws | No fix yet | — |
| Ubuntu 16.04 LTS | libaws | No fix yet | — |
Advisories 1
- DLA-4080-1 libaws - security update Debian Security (DSA / DLA) · Mar 9, 2026