Publish GHSA-2fjw-whxm-9v4q

Author: advisory-database[bot]

advisories/github-reviewed/2025/11/GHSA-2fjw-whxm-9v4q/GHSA-2fjw-whxm-9v4q.json

@@ -0,0 +1,63 @@
+{
+  "schema_version": "1.4.0",
+  "id": "GHSA-2fjw-whxm-9v4q",
+  "modified": "2025-11-25T23:18:37Z",
+  "published": "2025-11-25T23:18:37Z",
+  "aliases": [],
+  "summary": "libnftnl has Heap-based Buffer Overflow in nftnl::Batch::with_page_size (nftnl-rs)",
+  "details": "A heap-buffer-overflow vulnerability exists in the Rust wrapper for libnftnl, triggered via the nftnl::Batch::with_page_size constructor. When a small or malformed page size is provided, the underlying C code allocates an insufficient buffer, leading to out-of-bounds writes during batch initialization.\n\nThe flaw was fixed in commit 94a286f by adding an overflow check:\n```Rust\nbatch_page_size\n    .checked_add(crate::nft_nlmsg_maxsize())\n    .expect(\"batch_page_size is too large and would overflow\");\n```\nThe fix has not been added to the Rust registry at the time of publish.",
+  "severity": [
+    {
+      "type": "CVSS_V4",
+      "score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:L/SA:N"
+    }
+  ],
+  "affected": [
+    {
+      "package": {
+        "ecosystem": "crates.io",
+        "name": "nftnl"
+      },
+      "ranges": [
+        {
+          "type": "ECOSYSTEM",
+          "events": [
+            {
+              "introduced": "0"
+            },
+            {
+              "last_affected": "0.8.0"
+            }
+          ]
+        }
+      ]
+    }
+  ],
+  "references": [
+    {
+      "type": "WEB",
+      "url": "https://github.com/mullvad/nftnl-rs/issues/76#issue-3528876468"
+    },
+    {
+      "type": "WEB",
+      "url": "https://github.com/mullvad/nftnl-rs/commit/94a286f87e88f431913d19668246de9006790125"
+    },
+    {
+      "type": "PACKAGE",
+      "url": "https://github.com/mullvad/nftnl-rs"
+    },
+    {
+      "type": "WEB",
+      "url": "https://rustsec.org/advisories/RUSTSEC-2025-0126.html"
+    }
+  ],
+  "database_specific": {
+    "cwe_ids": [
+      "CWE-122"
+    ],
+    "severity": "CRITICAL",
+    "github_reviewed": true,
+    "github_reviewed_at": "2025-11-25T23:18:37Z",
+    "nvd_published_at": null
+  }
+}