Headline
CVE-2022-30633
Uncontrolled recursion in Unmarshal in encoding/xml before Go 1.17.12 and Go 1.18.4 allows an attacker to cause a panic due to stack exhaustion via unmarshalling an XML document into a Go struct which has a nested field that uses the ‘any’ field tag.
)]}’ { "commit": "c4c1993fd2a5b26fe45c09592af6d3388a3b2e08", "tree": "c9fcd79b62f65e7c2bda9d3e4bb6e4a34a7928a5", "parents": [ “913d05133c7fb3adfd2b1a34a47d635d8e072fa2” ], "author": { "name": "Roland Shoemaker", "email": "[email protected]", "time": “Tue Mar 29 15:52:09 2022 -0700” }, "committer": { "name": "Michael Knyszek", "email": "[email protected]", "time": “Tue Jul 12 15:05:33 2022 +0000” }, "message": "encoding/xml: limit depth of nesting in unmarshal\n\nPrevent exhausting the stack limit when unmarshalling extremely deeply\nnested structures into nested types.\n\nFixes #53611\nFixes CVE-2022-30633\n\nChange-Id: Ic6c5d41674c93cfc9a316135a408db9156d39c59\nReviewed-on: https://team-review.git.corp.google.com/c/golang/go-private/+/1421319\nReviewed-by: Damien Neil \[email protected]\u003e\nReviewed-by: Julie Qiu \[email protected]\u003e\nReviewed-on: https://go-review.googlesource.com/c/go/+/417061\nRun-TryBot: Michael Knyszek \[email protected]\u003e\nReviewed-by: Heschi Kreinick \[email protected]\u003e\nTryBot-Result: Gopher Robot \[email protected]\u003e\n", "tree_diff": [ { "type": "modify", "old_id": "257591262fc182db45edf044f9eaea73a41d6648", "old_mode": 33188, "old_path": "src/encoding/xml/read.go", "new_id": "01613065e3103e856988e72c719123b46af492ab", "new_mode": 33188, "new_path": “src/encoding/xml/read.go” }, { "type": "modify", "old_id": "6ef55de77be12335a8870f21985d49b99466ebc9", "old_mode": 33188, "old_path": "src/encoding/xml/read_test.go", "new_id": "42059db3ae6ede5cab17e23b9070d9b7cc301b03", "new_mode": 33188, "new_path": “src/encoding/xml/read_test.go” } ] }
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In Decoder.Skip in encoding/xml in Go before 1.17.12 and 1.18.x before 1.18.4, stack exhaustion and a panic can occur via a deeply nested XML document.
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