Описание
Wasmtime is a standalone JIT-style runtime for WebAssembly, using Cranelift. There is a use after free vulnerability in Wasmtime when both running Wasm that uses externrefs and enabling epoch interruption in Wasmtime. If you are not explicitly enabling epoch interruption (it is disabled by default) then you are not affected. If you are explicitly disabling the Wasm reference types proposal (it is enabled by default) then you are also not affected. The use after free is caused by Cranelift failing to emit stack maps when there are safepoints inside cold blocks. Cold blocks occur when epoch interruption is enabled. Cold blocks are emitted at the end of compiled functions, and change the order blocks are emitted versus defined. This reordering accidentally caused Cranelift to skip emitting some stack maps because it expected to emit the stack maps in block definition order, rather than block emission order. When Wasmtime would eventually collect garbage, it would fail to find live refe...
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support, was needed |
| devel | released | 1:1snap1-0ubuntu1 |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | ignored | end of standard support, was ignored [bundled deps handled by upstream in new versions] |
| impish | ignored | end of life |
| jammy | released | 1:1snap1-0ubuntu1 |
| kinetic | released | 1:1snap1-0ubuntu1 |
| lunar | released | 1:1snap1-0ubuntu1 |
| mantic | released | 1:1snap1-0ubuntu1 |
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| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support, was needs-triage |
| devel | DNE | |
| esm-apps/bionic | ignored | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| impish | DNE | |
| jammy | DNE | |
| kinetic | DNE | |
| lunar | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support, was needs-triage |
| devel | DNE | |
| esm-apps/focal | ignored | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/bionic | ignored | |
| focal | ignored | |
| impish | DNE | |
| jammy | DNE | |
| kinetic | DNE | |
| lunar | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | ignored | |
| focal | ignored | |
| impish | DNE | |
| jammy | DNE | |
| kinetic | DNE | |
| lunar | DNE | |
| mantic | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-apps/jammy | ignored | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| impish | ignored | end of life |
| jammy | ignored | |
| kinetic | ignored | end of life, was needs-triage |
| lunar | ignored | end of life, was needs-triage |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | DNE | |
| devel | DNE | |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | DNE | |
| impish | DNE | |
| jammy | ignored | |
| kinetic | DNE | |
| lunar | DNE | |
| mantic | DNE |
Показывать по
| Релиз | Статус | Примечание |
|---|---|---|
| bionic | ignored | end of standard support, was needed |
| devel | ignored | bundled deps handled by upstream in new versions |
| esm-infra-legacy/trusty | DNE | |
| esm-infra/focal | DNE | |
| focal | ignored | end of standard support, was ignored [bundled deps handled by upstream in new versions] |
| impish | ignored | end of life |
| jammy | ignored | bundled deps handled by upstream in new versions |
| kinetic | ignored | end of life, was needed |
| lunar | ignored | end of life, was ignored [bundled deps handled by upstream in new versions] |
| mantic | ignored | end of life, was ignored [bundled deps handled by upstream in new versions] |
Показывать по
EPSS
6.8 Medium
CVSS2
8.1 High
CVSS3
Связанные уязвимости
Wasmtime is a standalone JIT-style runtime for WebAssembly, using Cranelift. There is a use after free vulnerability in Wasmtime when both running Wasm that uses externrefs and enabling epoch interruption in Wasmtime. If you are not explicitly enabling epoch interruption (it is disabled by default) then you are not affected. If you are explicitly disabling the Wasm reference types proposal (it is enabled by default) then you are also not affected. The use after free is caused by Cranelift failing to emit stack maps when there are safepoints inside cold blocks. Cold blocks occur when epoch interruption is enabled. Cold blocks are emitted at the end of compiled functions, and change the order blocks are emitted versus defined. This reordering accidentally caused Cranelift to skip emitting some stack maps because it expected to emit the stack maps in block definition order, rather than block emission order. When Wasmtime would eventually collect garbage, it would fail to find live referen
Wasmtime is a standalone JIT-style runtime for WebAssembly, using Cran ...
EPSS
6.8 Medium
CVSS2
8.1 High
CVSS3