fkie_cve-2022-49727
Vulnerability from fkie_nvd
Published
2025-02-26 07:01
Modified
2025-03-07 20:46
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: ipv6: Fix signed integer overflow in l2tp_ip6_sendmsg When len >= INT_MAX - transhdrlen, ulen = len + transhdrlen will be overflow. To fix, we can follow what udpv6 does and subtract the transhdrlen from the max.
References
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/034246122f5c5e2e2a0b9fe04e24517920e9beb1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/0e818d433fc2718fe4da044ffca7431812a7e04ePatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/27a37755ceb401111ded76810359d3adc4b268a1Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2cf73c7cb6125083408d77f43d0e84d86aed0000Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/2f42389d270f2304c8855b0b63498a5a4d0c053dPatch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/6c4e3486d21173d60925ef52e512cae727b43d30Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/b8879ca1fd7348b4d5db7db86dcb97f60c73d751Patch
416baaa9-dc9f-4396-8d5f-8c081fb06d67https://git.kernel.org/stable/c/f638a84afef3dfe10554c51820c16e39a278c915Patch
Impacted products
Vendor Product Version
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel *
linux linux_kernel 5.19


To clipboard 

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      "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nipv6: Fix signed integer overflow in l2tp_ip6_sendmsg\n\nWhen len \u003e= INT_MAX - transhdrlen, ulen = len + transhdrlen will be\noverflow. To fix, we can follow what udpv6 does and subtract the\ntranshdrlen from the max."
    },
    {
      "lang": "es",
      "value": "En el kernel de Linux, se ha resuelto la siguiente vulnerabilidad: ipv6: Se solucion\u00f3 el desbordamiento de entero con signo en l2tp_ip6_sendmsg Cuando len \u0026gt;= INT_MAX - transhdrlen, ulen = len + transhdrlen se desbordar\u00e1. Para solucionarlo, podemos seguir lo que hace udpv6 y restar transhdrlen del m\u00e1ximo."
    }
  ],
  "id": "CVE-2022-49727",
  "lastModified": "2025-03-07T20:46:49.640",
  "metrics": {
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        "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"
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        "exploitabilityScore": 1.8,
        "impactScore": 3.6,
        "source": "nvd@nist.gov",
        "type": "Primary"
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  "published": "2025-02-26T07:01:48.347",
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  "vulnStatus": "Analyzed",
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          "value": "CWE-190"
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      "source": "nvd@nist.gov",
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}


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