CVE-2024-52805 (GCVE-0-2024-52805)
Vulnerability from cvelistv5 – Published: 2024-12-03 17:01 – Updated: 2024-12-03 19:04
VLAI
EPSS
VEX
Title
Synapse allows unsupported content types to lead to memory exhaustion
Summary
Synapse is an open-source Matrix homeserver. In Synapse before 1.120.1, multipart/form-data requests can in certain configurations transiently increase memory consumption beyond expected levels while processing the request, which can be used to amplify denial of service attacks. Synapse 1.120.1 resolves the issue by denying requests with unsupported multipart/form-data content type.
Severity
SSVC
Exploitation: none
Automatable: yes
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2024-12-03 19:04 UTC
CWE
- CWE-770 - Allocation of Resources Without Limits or Throttling
Assigner
References
3 references
| URL | Tags |
|---|---|
| https://github.com/element-hq/synapse/security/ad… | x_refsource_CONFIRM |
| https://github.com/twisted/twisted/issues/4688#is… | x_refsource_MISC |
| https://github.com/twisted/twisted/issues/4688#is… | x_refsource_MISC |
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| element-hq | synapse |
Affected:
< 1.120.1
|
guessed | |
| element-hq | synapse |
Affected:
0 , < 1.120.1
(custom)
cpe:2.3:a:element-hq:synapse:*:*:*:*:*:*:*:* |
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},
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}
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"id": "CVE-2024-52805",
"lastModified": "2026-06-17T08:07:39.657",
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"modifiedSubAvailabilityImpact": "NOT_DEFINED",
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|---|
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.