HTTP/2 server crash due to HPACK encoder race in net/http
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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| Go standard library | net/http | unaffected |
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| Go standard library | net/http/internal/http2 | unaffected |
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| golang.org/x/net | golang.org/x/net/http2 | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
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| Go Standard Library | Net/http |
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| Go Standard Library | Net/http |
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| Go Standard Library | Net/http2 |
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No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.676% probability within 30 days)
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| Metrics |
ssvc
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| Type | Values Removed | Values Added |
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| Weaknesses | CWE-362 | |
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cvssV3_1
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cvssV3_1
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| First Time appeared |
Go Standard Library
Go Standard Library net/http Go Standard Library net/http2 |
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| Vendors & Products |
Go Standard Library
Go Standard Library net/http Go Standard Library net/http2 |
| Type | Values Removed | Values Added |
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| Weaknesses | CWE-362 |
| Type | Values Removed | Values Added |
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| Weaknesses | CWE-362 |
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| Weaknesses | CWE-366 | |
| References |
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| Metrics |
threat_severity
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cvssV3_1
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| Description | HTTP/2 servers could end up crashing due to inadvertently modifying its HPACK encoder concurrently. This happens because the server modifies the HPACK encoder from two goroutines without synchronization: one uses the encoder to encode a HEADERS frame as part of a response sent to a client and the other modifies the encoder's table size when handling a SETTINGS frame containing SETTINGS_HEADER_TABLE_SIZE that a client sends. A malicious client can repeatedly send a request while changing the header table size to crash the server. | |
| Title | HTTP/2 server crash due to HPACK encoder race in net/http | |
| References |
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