Description
RTKLIB through 2.4.3 contains an out-of-bounds write vulnerability in decode_type1033 function that fails to clamp length counters to destination buffer size, allowing up to 191-byte overflow into fixed 64-byte descriptor fields. An attacker controlling an NTRIP or serial RTCM3 correction stream can craft a valid CRC-bearing type-1033 message to corrupt adjacent rtcm_t object members, potentially achieving arbitrary code execution or denial of service.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| tomojitakasu | RTKLIB | ≤ 2.4.3 | — |
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 | rtklib | No fix yet | — |
| Debian 13 | rtklib | No fix yet | — |
| Debian 12 | rtklib | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | rtklib | No fix yet | — |
| Ubuntu 26.04 LTS | rtklib | No fix yet | — |
| Ubuntu 25.10 | rtklib | No fix yet | — |
| Ubuntu 24.04 LTS | rtklib | No fix yet | — |
| Ubuntu 22.04 LTS | rtklib | No fix yet | — |
Show 2 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | rtklib | No fix yet | — |
| Ubuntu 18.04 LTS | rtklib | No fix yet | — |
References
- Researcher Disclosure technical-description exploit issue-tracking
- https://www.vulncheck.com/advisories/rtklib-out-of-bounds-write-in-decode-type1033-via-crafted-rtcm3-message third-party-advisory