From fa494c984f9df4906b11483b5f9dc5494be92c41 Mon Sep 17 00:00:00 2001
From: Paul Devitt <pauldev@google.com>
Date: Fri, 23 Sep 2022 13:05:43 +0200
Subject: [PATCH] CVE-2022-2566 - Memory write in FFMPEG

---
 2022/2xxx/CVE-2022-2566.json | 90 +++++++++++++++++++++++++++++++++---
 1 file changed, 83 insertions(+), 7 deletions(-)

diff --git a/2022/2xxx/CVE-2022-2566.json b/2022/2xxx/CVE-2022-2566.json
index 2cbbaaeb2a2..66319e9a15b 100644
--- a/2022/2xxx/CVE-2022-2566.json
+++ b/2022/2xxx/CVE-2022-2566.json
@@ -1,18 +1,94 @@
 {
-    "data_type": "CVE",
-    "data_format": "MITRE",
-    "data_version": "4.0",
     "CVE_data_meta": {
+        "ASSIGNER": "security@google.com",
+        "DATE_PUBLIC": "2022-08-27T22:00:00.000Z",
         "ID": "CVE-2022-2566",
-        "ASSIGNER": "cve@mitre.org",
-        "STATE": "RESERVED"
+        "STATE": "PUBLIC",
+        "TITLE": "Heap-memory write in FFMPEG"
     },
+    "affects": {
+        "vendor": {
+            "vendor_data": [
+                {
+                    "product": {
+                        "product_data": [
+                            {
+                                "product_name": "FFMPEG",
+                                "version": {
+                                    "version_data": [
+                                        {
+                                            "version_affected": ">=",
+                                            "version_value": "5.1"
+                                        },
+                                        {
+                                            "version_affected": ">=",
+                                            "version_value": "ab77b878f1205225c6de1370fb0e998dbcc8bc69"
+                                        },
+                                        {
+                                            "version_affected": "<",
+                                            "version_value": "c953baa084607dd1d84c3bfcce3cf6a87c3e6e05"
+                                        }
+                                    ]
+                                }
+                            }
+                        ]
+                    },
+                    "vendor_name": "FFMPEG"
+                }
+            ]
+        }
+    },
+    "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": "A heap out-of-bounds memory write exists in FFMPEG since version 5.1. The size calculation in `build_open_gop_key_points()` goes through all entries in the loop and adds `sc->ctts_data[i].count` to `sc->sample_offsets_count`. This can lead to an integer overflow resulting in a small allocation with `av_calloc(). An attacker can cause remote code execution via a malicious mp4 file. We recommend upgrading past commit c953baa084607dd1d84c3bfcce3cf6a87c3e6e05"
             }
         ]
+    },
+    "generator": {
+        "engine": "Vulnogram 0.0.9"
+    },
+    "impact": {
+        "cvss": {
+            "attackComplexity": "HIGH",
+            "attackVector": "NETWORK",
+            "availabilityImpact": "HIGH",
+            "baseScore": 9,
+            "baseSeverity": "CRITICAL",
+            "confidentialityImpact": "HIGH",
+            "integrityImpact": "HIGH",
+            "privilegesRequired": "NONE",
+            "scope": "CHANGED",
+            "userInteraction": "NONE",
+            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H",
+            "version": "3.1"
+        }
+    },
+    "problemtype": {
+        "problemtype_data": [
+            {
+                "description": [
+                    {
+                        "lang": "eng",
+                        "value": "CWE-122 Heap-based Buffer Overflow"
+                    }
+                ]
+            }
+        ]
+    },
+    "references": {
+        "reference_data": [
+            {
+                "refsource": "CONFIRM",
+                "url": "https://github.com/FFmpeg/FFmpeg/commit/c953baa084607dd1d84c3bfcce3cf6a87c3e6e05"
+            }
+        ]
+    },
+    "source": {
+        "discovery": "INTERNAL"
     }
-}
\ No newline at end of file
+}