Description
A vulnerability was found in WebAssembly wabt up to 1.0.37. It has been declared as problematic. Affected by this vulnerability is the function GetFuncOffset of the file src/interp/binary-reader-interp.cc. The manipulation leads to use after free. It is possible to launch the attack on the local host. The exploit has been disclosed to the public and may be used. A similar issue reported during the same timeframe was disputed by the code maintainer because it might not affect "real world wasm programs". Therefore, this entry might get disputed as well in the future.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| WebAssembly | wabt | 1.0.0, 1.0.1, 1.0.2, 1.0.3, 1.0.4, 1.0.5, 1.0.6, 1.0.7, 1.0.8, 1.0.9, 1.0.10, 1.0.11, 1.0.12, 1.0.13, 1.0.14, 1.0.15, 1.0.16, 1.0.17, 1.0.18, 1.0.19, 1.0.20, 1.0.21, 1.0.22, 1.0.23, 1.0.24, 1.0.25, 1.0.26, 1.0.27, 1.0.28, 1.0.29, 1.0.30, 1.0.31, 1.0.32, 1.0.33, 1.0.34, 1.0.35, 1.0.36, 1.0.37 | — |
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 | — |
References
- VDB-313279 | WebAssembly wabt binary-reader-interp.cc GetFuncOffset use after free vdb-entry technical-description
- VDB-313279 | CTI Indicators (IOB, IOC, IOA) signature permissions-required
- Submit #593017 | WebAssembly wabt wabt 1.0.37 (commit a60eb26) Use After Free third-party-advisory
- https://github.com/WebAssembly/wabt/issues/2614 issue-tracking
- https://github.com/user-attachments/files/20623626/wabt_crash_5.txt exploit