Add CVE-2021-29453 for GHSA-j889-h476-hh9h

2021/29xxx/CVE-2021-29453.json

@@ -1,18 +1,93 @@
 {
-    "data_type": "CVE",
-    "data_format": "MITRE",
-    "data_version": "4.0",
     "CVE_data_meta": {
+        "ASSIGNER": "security-advisories@github.com",
         "ID": "CVE-2021-29453",
-        "ASSIGNER": "cve@mitre.org",
-        "STATE": "RESERVED"
+        "STATE": "PUBLIC",
+        "TITLE": "Denial of service through memory exhaustion"
     },
+    "affects": {
+        "vendor": {
+            "vendor_data": [
+                {
+                    "product": {
+                        "product_data": [
+                            {
+                                "product_name": "matrix-media-repo",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_value": "<= 1.2.6"
+                                        }
+                                    ]
+                                }
+                            }
+                        ]
+                    },
+                    "vendor_name": "turt2live"
+                }
+            ]
+        }
+    },
+    "data_format": "MITRE",
+    "data_type": "CVE",
+    "data_version": "4.0",
     "description": {
         "description_data": [
             {
                 "lang": "eng",
-                "value": "** RESERVED ** This candidate has been reserved by an organization or individual that will use it when announcing a new security problem. When the candidate has been publicized, the details for this candidate will be provided."
+                "value": "matrix-media-repo is an open-source multi-domain media repository for Matrix. Versions 1.2.6 and earlier of matrix-media-repo do not properly handle malicious images which are crafted to be small in file size, but large in complexity. A malicious user could upload a relatively small image in terms of file size, using particular image formats, which expands to have extremely large dimensions during the process of thumbnailing. The server can be exhausted of memory in the process of trying to load the whole image into memory for thumbnailing, leading to denial of service. Version 1.2.7 has a fix for the vulnerability."
             }
         ]
+    },
+    "impact": {
+        "cvss": {
+            "attackComplexity": "LOW",
+            "attackVector": "NETWORK",
+            "availabilityImpact": "HIGH",
+            "baseScore": 5.7,
+            "baseSeverity": "MEDIUM",
+            "confidentialityImpact": "NONE",
+            "integrityImpact": "NONE",
+            "privilegesRequired": "LOW",
+            "scope": "UNCHANGED",
+            "userInteraction": "REQUIRED",
+            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H",
+            "version": "3.1"
+        }
+    },
+    "problemtype": {
+        "problemtype_data": [
+            {
+                "description": [
+                    {
+                        "lang": "eng",
+                        "value": "{\"CWE-400\":\"Uncontrolled Resource Consumption\"}"
+                    }
+                ]
+            }
+        ]
+    },
+    "references": {
+        "reference_data": [
+            {
+                "name": "https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-j889-h476-hh9h",
+                "refsource": "CONFIRM",
+                "url": "https://github.com/turt2live/matrix-media-repo/security/advisories/GHSA-j889-h476-hh9h"
+            },
+            {
+                "name": "https://hub.docker.com/r/turt2live/matrix-media-repo/tags?page=1&ordering=last_updated",
+                "refsource": "MISC",
+                "url": "https://hub.docker.com/r/turt2live/matrix-media-repo/tags?page=1&ordering=last_updated"
+            },
+            {
+                "name": "https://github.com/turt2live/matrix-media-repo/releases/tag/v1.2.7",
+                "refsource": "MISC",
+                "url": "https://github.com/turt2live/matrix-media-repo/releases/tag/v1.2.7"
+            }
+        ]
+    },
+    "source": {
+        "advisory": "GHSA-j889-h476-hh9h",
+        "discovery": "UNKNOWN"
     }
 }