Node.js: WASI sandbox escape via symlink

A WASI + WASM program was discovered to be able to use pathsymlink to read arbitrary files on the host machine by creating a symlink in a preopen to a different location on the local file system, thereby escaping the WASI sandbox...

Fastly Compute@Edge JS Runtime has fixed random number seed during compilation

Impact Math.random and crypto.getRandomValues methods failed to use sufficiently random values. The initial value to seed the CSPRNG cryptographically secure pseudorandom number generator was baked-in to the final WebAssembly module meaning the sequence of numbers generated was predictable for th...

GHSA-CMR8-5W4C-44V8 Fastly Compute@Edge JS Runtime has fixed random number seed during compilation

Impact Math.random and crypto.getRandomValues methods failed to use sufficiently random values. The initial value to seed the CSPRNG cryptographically secure pseudorandom number generator was baked-in to the final WebAssembly module meaning the sequence of numbers generated was predictable for th...

Wasmtime Resource Management Error Vulnerability

Wasmtime, a Bytecode Consortium project, is a standalone wasm-optimized runtime for WebAssembly and WASI only. a resource management error vulnerability exists in Wasmtime, which stems from the fact that when running Wasm with externrefs and epoch interrupts are enabled in Wasmtime, a use after...

auto-wasi (0.1.0), ceres-executor (>=0.1.0, <=0.2.0) +46 more potentially affected by CVE-2022-23636 +1 more via wasmtime (>=0.7.0, <=0.33.0)

wasmtime CARGO version =0.7.0, =0.1.0, =0.40.1, =0.45.0, =0.10.0, =0.1.0, =0.1.0, =0.1.0, =0.3.3, =0.1.0, =0.2.0 - paxforth 0.1.0 and more Source cves: CVE-2022-23636, CVE-2022-31169 Source advisory: OSV:RUSTSEC-2022-0096...

Default configuration

Wasmtime is an open source runtime for WebAssembly & WASI. Prior to versions 0.34.1 and 0.33.1, there exists a bug in the pooling instance allocator in Wasmtime's runtime where a failure to instantiate an instance for a module that defines an externref global will result in an invalid drop of a...

CVE-2022-23636 Invalid drop of partially-initialized instances in wasmtime

Wasmtime is an open source runtime for WebAssembly & WASI. Prior to versions 0.34.1 and 0.33.1, there exists a bug in the pooling instance allocator in Wasmtime's runtime where a failure to instantiate an instance for a module that defines an externref global will result in an invalid drop of a...

CVE-2022-23636 Invalid drop of partially-initialized instances in wasmtime

Wasmtime is an open source runtime for WebAssembly & WASI. Prior to versions 0.34.1 and 0.33.1, there exists a bug in the pooling instance allocator in Wasmtime's runtime where a failure to instantiate an instance for a module that defines an externref global will result in an invalid drop of a...

CVE-2022-23636

CVE-2022-23636 affects Wasmtime prior to 0.34.1 and 0.33.1, due to a bug in the pooling instance allocator that can cause an invalid drop of a VMExternRef when a module defines an externref global and instance creation fails. The vulnerability depends on specific conditions (e.g., mprotect/Virtua...

embly-wrapper (0.0.2), wasi-common-lucet (>=0.4.0, <=0.4.2) potentially affected by CVE-2021-43790 via lucet-runtime (>=0.4.3, <=0.6.1)

lucet-runtime CARGO version =0.4.3, =0.4.0, =0.4.2 Source cves: CVE-2021-43790 Source advisory: OSV:GHSA-HF79-8HJP-RRVQ...

embly-wrapper (0.0.2), wasi-common-lucet (>=0.4.0, <=0.4.2) potentially affected by CVE-2021-43790 via lucet-runtime (>=0.4.3, <=0.6.1)

lucet-runtime CARGO version =0.4.3, =0.4.0, =0.4.2 Source cves: CVE-2021-43790 Source advisory: OSV:RUSTSEC-2021-0155...

CVE-2021-39218

Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.26.0 and before version 0.30.0 is affected by a memory unsoundness vulnerability. There was an invalid free and out-of-bounds read and write bug when running Wasm that uses externrefs in Wasmtime. To trigger thi...

CVE-2021-39218

Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.26.0 and before version 0.30.0 is affected by a memory unsoundness vulnerability. There was an invalid free and out-of-bounds read and write bug when running Wasm that uses externrefs in Wasmtime. To trigger thi...

Design/Logic Flaw

Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.26.0 and before version 0.30.0 is affected by a memory unsoundness vulnerability. There was an invalid free and out-of-bounds read and write bug when running Wasm that uses externrefs in Wasmtime. To trigger thi...

PYSEC-2021-321

Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.26.0 and before version 0.30.0 is affected by a memory unsoundness vulnerability. There was an invalid free and out-of-bounds read and write bug when running Wasm that uses externrefs in Wasmtime. To trigger thi...

CVE-2021-39216

Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.19.0 and before version 0.30.0 there was a use-after-free bug when passing externrefs from the host to guest Wasm content. To trigger the bug, you have to explicitly pass multiple externrefs from the host to a...

CVE-2021-39219

Wasmtime is an open source runtime for WebAssembly & WASI. Wasmtime before version 0.30.0 is affected by a type confusion vulnerability. As a Rust library the wasmtime crate clearly marks which functions are safe and which are unsafe, guaranteeing that if consumers never use unsafe then it should...

Code injection

Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.19.0 and before version 0.30.0 there was a use-after-free bug when passing externrefs from the host to guest Wasm content. To trigger the bug, you have to explicitly pass multiple externrefs from the host to a...

PYSEC-2021-322

Wasmtime is an open source runtime for WebAssembly & WASI. Wasmtime before version 0.30.0 is affected by a type confusion vulnerability. As a Rust library the wasmtime crate clearly marks which functions are safe and which are unsafe, guaranteeing that if consumers never use unsafe then it should...

PYSEC-2021-320

Wasmtime is an open source runtime for WebAssembly & WASI. In Wasmtime from version 0.19.0 and before version 0.30.0 there was a use-after-free bug when passing externrefs from the host to guest Wasm content. To trigger the bug, you have to explicitly pass multiple externrefs from the host to a...