Description
An integer overflow vulnerability exists in the write method of the Buffer class in Robocode version 1.9.3.6. The method fails to properly validate the length of data being written, allowing attackers to cause an overflow, potentially leading to buffer overflows and arbitrary code execution. This vulnerability can be exploited by submitting specially crafted inputs that manipulate the data length, leading to potential unauthorized code execution.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Robocode Project | Robocode | 1.9.3.6 | — |
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 | robocode | No fix yet | — |
| Debian 13 | robocode | No fix yet | — |
| Debian 12 | robocode | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | robocode | No fix yet | — |
| Ubuntu 25.10 | robocode | No fix yet | — |
Show 6 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu Pro 26.04 LTS | robocode | 1.9.3.9-4ubuntu0.26.04.1~esm1 | USN-8385-1 |
| Ubuntu Pro 24.04 LTS | robocode | 1.9.3.9-3ubuntu0.1~esm1 | USN-8385-1 |
| Ubuntu Pro 22.04 LTS | robocode | 1.9.3.9-2ubuntu0.1~esm1 | USN-8385-1 |
| Ubuntu Pro 20.04 LTS | robocode | 1.9.3.7-1ubuntu0.1~esm1 | USN-8385-1 |
| Ubuntu Pro 18.04 LTS | robocode | 1.9.3.1-1ubuntu0.1~esm1 | USN-8385-1 |
| Ubuntu Pro 16.04 LTS | robocode | 1.9.2.5-2ubuntu0.1~esm1 | USN-8385-1 |
Advisories 1
- USN-8385-1 robocode vulnerabilities Ubuntu Security Notices (USN) · Jun 4, 2026