CWE-674

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        "title": "CISA ADP Vulnrichment"
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          "value": "Mistune is a Python Markdown parser with renderers and plugins. Versions 3.3.0 through 3.3.2 are vulnerable to DoS through deeply nested tokens. HTML rendering creates deeply nested emphasis tokens from consecutive asterisk characters, and recursive rendering in HTMLRenderer.render_token() can exceed Python\u0027s recursion limit and raise RecursionError, allowing crafted Markdown to crash a parsing process. This issue is fixed in version 3.3.3"
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      "title": "Mistune has Denial of Service \u2014 RecursionError via Excessive Emphasis Markers in Markdown"
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              "value": "\u003cp\u003eUncontrolled Recursion vulnerability in the Elixir standard library allows an attacker who controls a list passed to \u003ccode\u003einspect/1\u003c/code\u003e, \u003ccode\u003eList.to_string/1\u003c/code\u003e, or \u003ccode\u003eList.to_charlist/1\u003c/code\u003e to exhaust a BEAM node\u0027s memory.\u003c/p\u003e\n\u003cp\u003e\u003ccode\u003eInspect.List\u003c/code\u003e\u0027s charlist branch in \u003ccode\u003elib/elixir/lib/inspect.ex\u003c/code\u003e classifies a list as a charlist using \u003ccode\u003eList.ascii_printable?/2\u003c/code\u003e, which examines only the first \u003ccode\u003e:printable_limit\u003c/code\u003e (4096 by default) elements, and then calls \u003ccode\u003eIO.chardata_to_string/1\u003c/code\u003e on the whole term. A list whose printable prefix exceeds that limit but which contains a later element that is not a code point (an atom, an out-of-range integer, or an improper tail) is therefore mis-classified, and the conversion raises \u003ccode\u003eArgumentError\u003c/code\u003e. That conversion runs inside \u003ccode\u003eList.to_string/1\u003c/code\u003e, whose rescue clause builds its message by interpolating \u003ccode\u003einspect(list)\u003c/code\u003e, which re-enters the same branch and raises again. The nested inspection is an argument to \u003ccode\u003eraise\u003c/code\u003e, so the recursion is not in tail position and every level is retained: the process stack grows monotonically while each cycle re-walks the list, until the process is killed by \u003ccode\u003emax_heap_size\u003c/code\u003e or, by default, the node runs out of memory. \u003ccode\u003eList.to_charlist/1\u003c/code\u003e has the same rescue shape.\u003c/p\u003e\n\u003cp\u003eBelow the printable limit the inner \u003ccode\u003einspect/1\u003c/code\u003e sees the invalid element within its counter and renders the list in ordinary bracket form, so a single \u003ccode\u003eArgumentError\u003c/code\u003e is raised and no recursion occurs.\u003c/p\u003e\n\u003cp\u003eThis issue affects elixir: from 1.15.0-rc.0 before 1.18.5, from 1.19.0-rc.0 before 1.19.6, and from 1.20.0-rc.0 before 1.20.4.\u003c/p\u003e"
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              "value": "Uncontrolled Recursion vulnerability in the Elixir standard library allows an attacker who controls a list passed to `inspect/1`, `List.to_string/1`, or `List.to_charlist/1` to exhaust a BEAM node\u0027s memory.\n\n`Inspect.List`\u0027s charlist branch in `lib/elixir/lib/inspect.ex` classifies a list as a charlist using `List.ascii_printable?/2`, which examines only the first `:printable_limit` (4096 by default) elements, and then calls `IO.chardata_to_string/1` on the whole term. A list whose printable prefix exceeds that limit but which contains a later element that is not a code point (an atom, an out-of-range integer, or an improper tail) is therefore mis-classified, and the conversion raises `ArgumentError`. That conversion runs inside `List.to_string/1`, whose rescue clause builds its message by interpolating `inspect(list)`, which re-enters the same branch and raises again. The nested inspection is an argument to `raise`, so the recursion is not in tail position and every level is retained: the process stack grows monotonically while each cycle re-walks the list, until the process is killed by `max_heap_size` or, by default, the node runs out of memory. `List.to_charlist/1` has the same rescue shape.\n\nBelow the printable limit the inner `inspect/1` sees the invalid element within its counter and renders the list in ordinary bracket form, so a single `ArgumentError` is raised and no recursion occurs.\n\nThis issue affects elixir: from 1.15.0-rc.0 before 1.18.5, from 1.19.0-rc.0 before 1.19.6, and from 1.20.0-rc.0 before 1.20.4."
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          "value": "Uncontrolled Recursion vulnerability in the Elixir standard library allows an attacker who controls a list passed to inspect/1, List.to_string/1, or List.to_charlist/1 to exhaust a BEAM node\u0027s memory.\n\nInspect.List\u0027s charlist branch in lib/elixir/lib/inspect.ex classifies a list as a charlist using List.ascii_printable?/2, which examines only the first :printable_limit (4096 by default) elements, and then calls IO.chardata_to_string/1 on the whole term. A list whose printable prefix exceeds that limit but which contains a later element that is not a code point (an atom, an out-of-range integer, or an improper tail) is therefore mis-classified, and the conversion raises ArgumentError. That conversion runs inside List.to_string/1, whose rescue clause builds its message by interpolating inspect(list), which re-enters the same branch and raises again. The nested inspection is an argument to raise, so the recursion is not in tail position and every level is retained: the process stack grows monotonically while each cycle re-walks the list, until the process is killed by max_heap_size or, by default, the node runs out of memory. List.to_charlist/1 has the same rescue shape.\n\nBelow the printable limit the inner inspect/1 sees the invalid element within its counter and renders the list in ordinary bracket form, so a single ArgumentError is raised and no recursion occurs.\n\nThis issue affects elixir: from 1.15.0-rc.0 before 1.18.5, from 1.19.0-rc.0 before 1.19.6, and from 1.20.0-rc.0 before 1.20.4."
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      "title": "Unbounded recursion between Inspect.List charlist rendering and List.to_string/1 error path in Elixir",
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              "value": "\u003cp\u003eInstall a global inspect function that renders lists as lists rather than inferring charlists, by calling \u003ccode\u003eInspect.Opts.default_inspect_fun/1\u003c/code\u003e with \u003ccode\u003efn term, opts -\u0026gt; Inspect.inspect(term, %{opts | charlists: :as_lists}) end\u003c/code\u003e from the application\u0027s start callback. This keeps the charlist branch from being entered at all, so the mis-inferred conversion never raises and the error path cannot recurse.\u003c/p\u003e\n\u003cp\u003eThe trade-off is global: charlists then render in bracket form, so \u003ccode\u003e~c\"abc\"\u003c/code\u003e inspects as \u003ccode\u003e[97, 98, 99]\u003c/code\u003e everywhere in the application, including in logs and error reports.\u003c/p\u003e"
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              "value": "Install a global inspect function that renders lists as lists rather than inferring charlists, by calling `Inspect.Opts.default_inspect_fun/1` with `fn term, opts -\u003e Inspect.inspect(term, %{opts | charlists: :as_lists}) end` from the application\u0027s start callback. This keeps the charlist branch from being entered at all, so the mis-inferred conversion never raises and the error path cannot recurse.\n\nThe trade-off is global: charlists then render in bracket form, so `~c\"abc\"` inspects as `[97, 98, 99]` everywhere in the application, including in logs and error reports."
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          "value": "Install a global inspect function that renders lists as lists rather than inferring charlists, by calling Inspect.Opts.default_inspect_fun/1 with fn term, opts -\u003e Inspect.inspect(term, %{opts | charlists: :as_lists}) end from the application\u0027s start callback. This keeps the charlist branch from being entered at all, so the mis-inferred conversion never raises and the error path cannot recurse.\n\nThe trade-off is global: charlists then render in bracket form, so ~c\"abc\" inspects as [97, 98, 99] everywhere in the application, including in logs and error reports."
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