cve-2024-53863
Vulnerability from cvelistv5
Published
2024-12-03 16:48
Modified
2024-12-03 19:08
Severity ?
EPSS score ?
Summary
Synapse can be forced to thumbnail unexpected file formats, invoking external, potentially untrustworthy decoders
References
Impacted products
▼ | Vendor | Product |
---|---|---|
element-hq | synapse |
{ "containers": { "adp": [ { "affected": [ { "cpes": [ "cpe:2.3:a:element-hq:synapse:*:*:*:*:*:*:*:*" ], "defaultStatus": "unknown", "product": "synapse", "vendor": "element-hq", "versions": [ { "lessThan": "1.120.1", "status": "affected", "version": "0", "versionType": "custom" } ] } ], "metrics": [ { "other": { "content": { "id": "CVE-2024-53863", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "timestamp": "2024-12-03T19:07:32.536899Z", "version": "2.0.3" }, "type": "ssvc" } } ], "providerMetadata": { "dateUpdated": "2024-12-03T19:08:30.218Z", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP" }, "title": "CISA ADP Vulnrichment" } ], "cna": { "affected": [ { "product": "synapse", "vendor": "element-hq", "versions": [ { "status": "affected", "version": "\u003c 1.120.1" } ] } ], "descriptions": [ { "lang": "en", "value": "Synapse is an open-source Matrix homeserver. In Synapse versions before 1.120.1, enabling the dynamic_thumbnails option or processing a specially crafted request could trigger the decoding and thumbnail generation of uncommon image formats, potentially invoking external tools like Ghostscript for processing. This significantly expands the attack surface in a historically vulnerable area, presenting a risk that far outweighs the benefit, particularly since these formats are rarely used on the open web or within the Matrix ecosystem. Synapse 1.120.1 addresses the issue by restricting thumbnail generation to images in the following widely used formats: PNG, JPEG, GIF, and WebP. This vulnerability is fixed in 1.120.1." } ], "metrics": [ { "cvssV4_0": { "attackComplexity": "LOW", "attackRequirements": "PRESENT", "attackVector": "NETWORK", "baseScore": 8.2, "baseSeverity": "HIGH", "privilegesRequired": "NONE", "subAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "userInteraction": "NONE", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N", "version": "4.0", "vulnAvailabilityImpact": "NONE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "HIGH" } } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-434", "description": "CWE-434: Unrestricted Upload of File with Dangerous Type", "lang": "en", "type": "CWE" } ] } ], "providerMetadata": { "dateUpdated": "2024-12-03T16:48:29.722Z", "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M" }, "references": [ { "name": "https://github.com/element-hq/synapse/security/advisories/GHSA-vp6v-whfm-rv3g", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/element-hq/synapse/security/advisories/GHSA-vp6v-whfm-rv3g" } ], "source": { "advisory": "GHSA-vp6v-whfm-rv3g", "discovery": "UNKNOWN" }, "title": "Synapse can be forced to thumbnail unexpected file formats, invoking external, potentially untrustworthy decoders" } }, "cveMetadata": { "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "assignerShortName": "GitHub_M", "cveId": "CVE-2024-53863", "datePublished": "2024-12-03T16:48:29.722Z", "dateReserved": "2024-11-22T17:30:02.145Z", "dateUpdated": "2024-12-03T19:08:30.218Z", "state": "PUBLISHED" }, "dataType": "CVE_RECORD", "dataVersion": "5.1", "meta": { "nvd": "{\"cve\":{\"id\":\"CVE-2024-53863\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2024-12-03T17:15:12.633\",\"lastModified\":\"2024-12-03T17:15:12.633\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"Synapse is an open-source Matrix homeserver. In Synapse versions before 1.120.1, enabling the dynamic_thumbnails option or processing a specially crafted request could trigger the decoding and thumbnail generation of uncommon image formats, potentially invoking external tools like Ghostscript for processing. This significantly expands the attack surface in a historically vulnerable area, presenting a risk that far outweighs the benefit, particularly since these formats are rarely used on the open web or within the Matrix ecosystem. Synapse 1.120.1 addresses the issue by restricting thumbnail generation to images in the following widely used formats: PNG, JPEG, GIF, and WebP. This vulnerability is fixed in 1.120.1.\"}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":8.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnerableSystemConfidentiality\":\"NONE\",\"vulnerableSystemIntegrity\":\"HIGH\",\"vulnerableSystemAvailability\":\"NONE\",\"subsequentSystemConfidentiality\":\"NONE\",\"subsequentSystemIntegrity\":\"NONE\",\"subsequentSystemAvailability\":\"NONE\",\"exploitMaturity\":\"NOT_DEFINED\",\"confidentialityRequirements\":\"NOT_DEFINED\",\"integrityRequirements\":\"NOT_DEFINED\",\"availabilityRequirements\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnerableSystemConfidentiality\":\"NOT_DEFINED\",\"modifiedVulnerableSystemIntegrity\":\"NOT_DEFINED\",\"modifiedVulnerableSystemAvailability\":\"NOT_DEFINED\",\"modifiedSubsequentSystemConfidentiality\":\"NOT_DEFINED\",\"modifiedSubsequentSystemIntegrity\":\"NOT_DEFINED\",\"modifiedSubsequentSystemAvailability\":\"NOT_DEFINED\",\"safety\":\"NOT_DEFINED\",\"automatable\":\"NOT_DEFINED\",\"recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-434\"}]}],\"references\":[{\"url\":\"https://github.com/element-hq/synapse/security/advisories/GHSA-vp6v-whfm-rv3g\",\"source\":\"security-advisories@github.com\"}]}}" } }
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- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
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- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.