fkie_cve-2024-53151
Vulnerability from fkie_nvd
Published
2024-12-24 12:15
Modified
2025-01-07 16:41
Severity ?
5.5 (Medium) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Summary
In the Linux kernel, the following vulnerability has been resolved: svcrdma: Address an integer overflow Dan Carpenter reports: > Commit 78147ca8b4a9 ("svcrdma: Add a "parsed chunk list" data > structure") from Jun 22, 2020 (linux-next), leads to the following > Smatch static checker warning: > > net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:498 xdr_check_write_chunk() > warn: potential user controlled sizeof overflow 'segcount * 4 * 4' > > net/sunrpc/xprtrdma/svc_rdma_recvfrom.c > 488 static bool xdr_check_write_chunk(struct svc_rdma_recv_ctxt *rctxt) > 489 { > 490 u32 segcount; > 491 __be32 *p; > 492 > 493 if (xdr_stream_decode_u32(&rctxt->rc_stream, &segcount)) > ^^^^^^^^ > > 494 return false; > 495 > 496 /* A bogus segcount causes this buffer overflow check to fail. */ > 497 p = xdr_inline_decode(&rctxt->rc_stream, > --> 498 segcount * rpcrdma_segment_maxsz * sizeof(*p)); > > > segcount is an untrusted u32. On 32bit systems anything >= SIZE_MAX / 16 will > have an integer overflow and some those values will be accepted by > xdr_inline_decode().
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/21e1cf688fb0397788c8dd42e1e0b08d58ac5c7bPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/3c63d8946e578663b868cb9912dac616ea68bfd0Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/4cbc3ba6dc2f746497cade60bcbaa82ae3696689Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/838dd342962cef4c320632a5af48d3c31f2f9877Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/c1f8195bf68edd2cef0f18a4cead394075a54b5aPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/e5c440c227ecdc721f2da0dd88b6358afd1031a7Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
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  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsvcrdma: Address an integer overflow\n\nDan Carpenter reports:\n\u003e Commit 78147ca8b4a9 (\"svcrdma: Add a \"parsed chunk list\" data\n\u003e structure\") from Jun 22, 2020 (linux-next), leads to the following\n\u003e Smatch static checker warning:\n\u003e\n\u003e\tnet/sunrpc/xprtrdma/svc_rdma_recvfrom.c:498 xdr_check_write_chunk()\n\u003e\twarn: potential user controlled sizeof overflow \u0027segcount * 4 * 4\u0027\n\u003e\n\u003e net/sunrpc/xprtrdma/svc_rdma_recvfrom.c\n\u003e     488 static bool xdr_check_write_chunk(struct svc_rdma_recv_ctxt *rctxt)\n\u003e     489 {\n\u003e     490         u32 segcount;\n\u003e     491         __be32 *p;\n\u003e     492\n\u003e     493         if (xdr_stream_decode_u32(\u0026rctxt-\u003erc_stream, \u0026segcount))\n\u003e                                                               ^^^^^^^^\n\u003e\n\u003e     494                 return false;\n\u003e     495\n\u003e     496         /* A bogus segcount causes this buffer overflow check to fail. */\n\u003e     497         p = xdr_inline_decode(\u0026rctxt-\u003erc_stream,\n\u003e --\u003e 498                               segcount * rpcrdma_segment_maxsz * sizeof(*p));\n\u003e\n\u003e\n\u003e segcount is an untrusted u32.  On 32bit systems anything \u003e= SIZE_MAX / 16 will\n\u003e have an integer overflow and some those values will be accepted by\n\u003e xdr_inline_decode()."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se resolvi\u00f3 la siguiente vulnerabilidad: svcrdma: soluciona un desbordamiento de enteros Dan Carpenter informa: \u0026gt; Commit 78147ca8b4a9 (\"svcrdma: agrega una estructura de datos de lista de fragmentos analizados\") del 22 de junio de 2020 (linux-next ), conduce a la siguiente \u0026gt; Advertencia del comprobador est\u00e1tico Smatch: \u0026gt; \u0026gt; net/sunrpc/xprtrdma/svc_rdma_recvfrom.c:498 xdr_check_write_chunk() \u0026gt; advertencia: tama\u00f1o de desbordamiento potencial controlado por el usuario \u0027segcount * 4 * 4\u0027 \u0026gt; \u0026gt; net/sunrpc/xprtrdma/svc_rdma_recvfrom.c \u0026gt; 488 static bool xdr_check_write_chunk(struct svc_rdma_recv_ctxt *rctxt) \u0026gt; 489 { \u0026gt; 490 u32 segcount; \u0026gt; 491 __be32 *p; \u0026gt; 492 \u0026gt; 493 if (xdr_stream_decode_u32(\u0026amp;rctxt-\u0026gt;rc_stream, \u0026amp;segcount)) \u0026gt; ^^^^^^^^ \u0026gt; \u0026gt; 494 devuelve falso; \u0026gt; 495 \u0026gt; 496 /* Un recuento de segmentos falso provoca que esta comprobaci\u00f3n de desbordamiento del b\u00fafer falle. */\u0026gt; 497 p = xdr_inline_decode(\u0026amp;rctxt-\u0026gt;rc_stream, \u0026gt; --\u0026gt; 498 segcount * rpcrdma_segment_maxsz * sizeof(*p)); \u0026gt; \u0026gt; \u0026gt; segcount es un u32 que no es de confianza. En sistemas de 32 bits, cualquier cosa \u0026gt;= TAMA\u00d1O_MAX / 16 tendr\u00e1 \u0026gt; un desbordamiento de enteros y algunos de esos valores ser\u00e1n aceptados por \u0026gt; xdr_inline_decode()."
    }
  ],
  "id": "CVE-2024-53151",
  "lastModified": "2025-01-07T16:41:42.637",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "LOCAL",
          "availabilityImpact": "HIGH",
          "baseScore": 5.5,
          "baseSeverity": "MEDIUM",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
      }
    ]
  },
  "published": "2024-12-24T12:15:23.240",
  "references": [
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      "tags": [
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  "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-190"
        }
      ],
      "source": "nvd@nist.gov",
      "type": "Primary"
    }
  ]
}


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