Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
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| CRUX | Protocol::HTTP2 | unaffected |
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No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Crux | Protocol::http2 |
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Vendor Workaround
Apply the patch.
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.414% probability within 30 days)
| Type | Values Removed | Values Added |
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| First Time appeared |
Crux protocol\
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| CPEs | cpe:2.3:a:crux:protocol\:\:http2:*:*:*:*:*:perl:*:* | |
| Vendors & Products |
Crux protocol\
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| Type | Values Removed | Values Added |
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| References |
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| Type | Values Removed | Values Added |
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| Description | Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb. Protocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory (the "HTTP/2 bomb"). The headers_decode method materialises a full key+value copy per indexed reference with no running size check, and the stream_header_block_add method appends (since version 1.12) every CONTINUATION frame to the per-stream buffer unbounded. MAX_HEADER_LIST_SIZE (default 65536) is advertised in SETTINGS but never consulted on decode. It is absent from the decoder and from the :limits export tag. | Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb. Protocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory (the "HTTP/2 bomb"). The headers_decode method materialises a full key+value copy per indexed reference with no running size check, and the stream_header_block_add method appends (since version 1.12) every CONTINUATION frame to the per-stream buffer unbounded. MAX_HEADER_LIST_SIZE (default 65536) is advertised in SETTINGS but never consulted on decode. It is absent from the decoder and from the :limits export tag. |
| Title | Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb | Protocol::HTTP2 versions before 1.13 for Perl is vulnerable to a HTTP/2 Bomb |
| References |
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| Type | Values Removed | Values Added |
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| Metrics |
cvssV3_1
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| Type | Values Removed | Values Added |
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| First Time appeared |
Crux
Crux protocol::http2 |
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| Vendors & Products |
Crux
Crux protocol::http2 |
| Type | Values Removed | Values Added |
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| References |
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| Type | Values Removed | Values Added |
|---|---|---|
| Description | Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb. Protocol::HTTP2's inbound HPACK path has no header-list size limit, so a small HTTP/2 request can expand into large server memory (the "HTTP/2 bomb"). The headers_decode method materialises a full key+value copy per indexed reference with no running size check, and the stream_header_block_add method appends (since version 1.12) every CONTINUATION frame to the per-stream buffer unbounded. MAX_HEADER_LIST_SIZE (default 65536) is advertised in SETTINGS but never consulted on decode. It is absent from the decoder and from the :limits export tag. | |
| Title | Protocol::HTTP2 versions through 1.12 for Perl is vulnerable to a HTTP/2 Bomb | |
| Weaknesses | CWE-409 | |
| References |
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