Publish GHSA-pg9f-39pc-qf8g

2026-05-22 18:04:22 -07:00 · 2025-04-10 14:33:12 +00:00
parent 34375762ab
commit 56e239f515
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+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-pg9f-39pc-qf8g",
+  "modified": "2025-04-10T14:30:39Z",
+  "published": "2025-04-10T14:30:39Z",
+  "aliases": [],
+  "summary": "crossbeam-channel Vulnerable to Double Free on Drop",
+  "details": "The internal `Channel` type's `Drop` method has a race\nwhich could, in some circumstances, lead to a double-free.\nThis could result in memory corruption.\n\nQuoting from the\n[upstream description in merge request \\#1187](https://github.com/crossbeam-rs/crossbeam/pull/1187#issue-2980761131):\n\n> The problem lies in the fact that `dicard_all_messages` contained two paths that could lead to `head.block` being read but only one of them would swap the value. This meant that `dicard_all_messages` could end up observing a non-null block pointer (and therefore attempting to free it) without setting `head.block` to null. This would then lead to `Channel::drop` making a second attempt at dropping the same pointer.\n\nThe bug was introduced while fixing a memory leak, in\nupstream [MR \\#1084](https://github.com/crossbeam-rs/crossbeam/pull/1084),\nfirst published in 0.5.12.\n\nThe fix is in\nupstream [MR \\#1187](https://github.com/crossbeam-rs/crossbeam/pull/1187)\nand has been published in 0.5.15",
+  "severity": [
+    {
+      "type": "CVSS_V4",
+      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "crates.io",
+        "name": "crossbeam-channel"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0.5.11"
+            },
+            {
+              "fixed": "0.5.15"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/crossbeam-rs/crossbeam/pull/1187"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/crossbeam-rs/crossbeam"
+    },
+    {
+      "type": "WEB",
+      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0024.html"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-415"
+    ],
+    "severity": "MODERATE",
+    "github_reviewed": true,
+    "github_reviewed_at": "2025-04-10T14:30:39Z",
+    "nvd_published_at": null
+  }
+}