Description
Apache Guacamole 1.5.1 and older may incorrectly calculate the lengths of instruction elements sent during the Guacamole protocol handshake, potentially allowing an attacker to inject Guacamole instructions during the handshake through specially-crafted data.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Apache Software Foundation | Apache Guacamole | ≤ 1.5.1 | — |
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.
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | guacamole-client | No fix yet | — |
| Ubuntu 16.04 LTS | guacamole-client | No fix yet | — |
Advisories 1
- WID-SEC-2023-1380 Apache Guacamole: Mehrere Schwachstellen BSI CERT-Bund (WID) · Jun 6, 2023
References
- https://lists.apache.org/thread/tn63n2lon0h5p45oft834t1dqvvxownv vendor-advisory