Unbounded Header Buffers in LiteSpeed HTTP/3 Allow Memory Exhaustion via QPACK Amplification
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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| litespeedtech | lsquic | unaffected |
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No data.
No data.
| Vendor | Product | Versions | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Litespeedtech | Lsquic |
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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% (0.446% probability within 30 days)
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| Metrics |
ssvc
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| Title | Unbounded Header Buffers in LiteSpeed HTTP/3 Allow Memory Exhaustion via QPACK Amplification |
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| Description | In lsquic before 4.9.0, the HTTP/3 implementation can use an excessive amount of memory because the number of buffered header sets is not limited, as demonstrated by a QPACK amplification attack. This is related to header_out_dynamic_entry and es_max_header_list_size. | |
| First Time appeared |
Litespeedtech
Litespeedtech lsquic |
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| Weaknesses | CWE-770 | |
| CPEs | cpe:2.3:a:litespeedtech:lsquic:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Litespeedtech
Litespeedtech lsquic |
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| References |
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| Metrics |
cvssV3_1
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