vulnerability / NVI-00019676 / Revision 1
adm-zip: Unhandled error event in async DEFLATE decompression crashes Node.js process (DoS)
OSV carries this publisher advisory for adm-zip. This is an aggregated source copy; consult the original publisher and compare update dates.
This report has not inspected your inventory, configuration, deployed build, reachability or evidence. A catalog listing and a severity score do not establish exposure or compromise.
01 / Meaning
Why it matters
Published affected context helps an owner decide what evidence to gather. This report has not examined your application.
02 / Applicability
The affected context
Affected versions, configuration prerequisites and known exclusions are public. Confirm each one against the deployed service.
adm-zip
source listedSEMVER: introduced 0; fixed 0.6.1
## Summary Denial of Service in `adm-zip`'s async decompression API allows an unauthenticated attacker to crash the entire Node.js host process by supplying a single malformed ZIP file. ## Details **Affected package**: adm-zip **Affected versions**: at least 0.6.0 (current latest); likely all versions containing the current `inflateAsync` implementation in `methods/inflater.js` **Patched version**: 0.6.1 ### Root Cause `methods/inflater.js:12-32` (`inflateAsync`) creates a `zlib.createInflateRaw(option)` stream and feeds it attacker-controlled compressed bytes via `tmp.end(inbuf)`, but never registers an `"error"` listener on the stream: ```js inflateAsync: function (/*Function*/ callback) { var tmp = zlib.createInflateRaw(option), parts = [], total = 0; tmp.on("data", function (data) { parts.push(data); total += data.length; }); tmp.on("end", function () { /* build buf, callback(buf) */ }); tmp.end(inbuf); // no tmp.on("error", ...) registered anywhere } ``` Per Node.js `EventEmitter`/stream semantics, an `"error"` event emitted with zero listeners is rethrown as an **uncaught exception on a later tick**, originating from the zlib C++ bindi
03 / Response
What to do next
- vendor patch
The original advisory lists fixed boundaries 0.6.1 for adm-zip. Confirm the publisher’s latest guidance.
Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system. GitHub Advisory Database via OSV
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Check current vendor support and compatibility. After making a change, verify the deployed build and relevant runtime conditions. Keep the evidence, owner and time. An updated lockfile alone does not prove what is running.
04 / Limits
What this report cannot establish
- Customer inventory, deployment, reachability and exploitation have not been inspected.
05 / Provenance
Sources you can inspect
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- GHSA-8238-w5pm-2374 ↗
GitHub Advisory Database via OSV · vendor advisory
Observed . GitHub-origin advisory, CC-BY-4.0; OSV is an aggregate copy, not independent corroboration.
Public revision history
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- Revision 1 ·
First indexed by Null; source disclosure date is shown separately.