Description
A vulnerability classified as problematic was found in WebAssembly wabt 1.0.36. Affected by this vulnerability is the function BinaryReaderInterp::BeginFunctionBody of the file src/interp/binary-reader-interp.cc. The manipulation leads to null pointer dereference. The attack can be launched remotely. The complexity of an attack is rather high. The exploitation appears to be difficult. The exploit has been disclosed to the public and may be used.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WebAssembly | wabt | 1.0.36 | — |
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 | wabt | No fix yet | — |
| Debian 13 | wabt | No fix yet | — |
| Debian 12 | wabt | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.10 | wabt | No fix yet | — |
| Ubuntu 26.04 LTS | wabt | No fix yet | — |
| Ubuntu 25.10 | wabt | No fix yet | — |
| Ubuntu 24.04 LTS | wabt | No fix yet | — |
| Ubuntu 22.04 LTS | wabt | No fix yet | — |
Show 1 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 20.04 LTS | wabt | No fix yet | — |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| PyPI | wabt-bin | <= 1.0.36 | — | PYSEC-2025-229 |
References
- VDB-303013 | WebAssembly wabt binary-reader-interp.cc BeginFunctionBody null pointer dereference vdb-entry technical-description
- VDB-303013 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #525091 | https://github.com/WebAssembly/wabt wabt 1.0.36 NULL Pointer Dereference third-party-advisory
- https://github.com/WebAssembly/wabt/issues/2565 issue-tracking
- https://github.com/WebAssembly/wabt/issues/2565#issue-2927572319 exploit issue-tracking