CVE-2025-24947
5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Summary
A hash collision vulnerability (in the hash table used to manage connections) in LSQUIC (aka LiteSpeed QUIC) before 4.2.0 allows remote attackers to cause a considerable CPU load on the server (a Hash DoS attack) by initiating connections with colliding Source Connection IDs (SCIDs). This is caused by XXH32 usage.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| litespeedtech | LSQUIC | 0 < 4.2.0 | affected |
Weaknesses
- CWE-407: CWE-407 Inefficient Algorithmic Complexity
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
- https://xxhash.com
- https://github.com/ncc-pbottine/QUIC-Hash-Dos-Advisory
- https://github.com/litespeedtech/lsquic/releases/tag/v4.2.0
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