CVE-2024-2398 HTTP/2 push headers memory-leak

2024-03-2707:55:48

curl

www.cve.org

cve-2024-2398

application

http/2

server push

memory-leak

error condition

libcurl

9.6 High

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

10.4%

JSON

When an application tells libcurl it wants to allow HTTP/2 server push, and the amount of received headers for the push surpasses the maximum allowed limit (1000), libcurl aborts the server push. When aborting, libcurl inadvertently does not free all the previously allocated headers and instead leaks the memory. Further, this error condition fails silently and is therefore not easily detected by an application.

CNA Affected

[
  {
    "vendor": "curl",
    "product": "curl",
    "versions": [
      {
        "version": "8.6.0",
        "status": "affected",
        "lessThanOrEqual": "8.6.0",
        "versionType": "semver"
      },
      {
        "version": "8.5.0",
        "status": "affected",
        "lessThanOrEqual": "8.5.0",
        "versionType": "semver"
      },
      {
        "version": "8.4.0",
        "status": "affected",
        "lessThanOrEqual": "8.4.0",
        "versionType": "semver"
      },
      {
        "version": "8.3.0",
        "status": "affected",
        "lessThanOrEqual": "8.3.0",
        "versionType": "semver"
      },
      {
        "version": "8.2.1",
        "status": "affected",
        "lessThanOrEqual": "8.2.1",
        "versionType": "semver"
      },
      {
        "version": "8.2.0",
        "status": "affected",
        "lessThanOrEqual": "8.2.0",
        "versionType": "semver"
      },
      {
        "version": "8.1.2",
        "status": "affected",
        "lessThanOrEqual": "8.1.2",
        "versionType": "semver"
      },
      {
        "version": "8.1.1",
        "status": "affected",
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        "versionType": "semver"
      },
      {
        "version": "8.1.0",
        "status": "affected",
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        "versionType": "semver"
      },
      {
        "version": "8.0.1",
        "status": "affected",
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      {
        "version": "8.0.0",
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      {
        "version": "7.88.1",
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        "version": "7.88.0",
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        "version": "7.87.0",
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        "version": "7.86.0",
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        "version": "7.85.0",
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        "version": "7.84.0",
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      {
        "version": "7.83.1",
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        "lessThanOrEqual": "7.83.1",
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      {
        "version": "7.83.0",
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        "version": "7.82.0",
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        "version": "7.81.0",
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        "version": "7.80.0",
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        "version": "7.79.1",
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        "version": "7.79.0",
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        "version": "7.78.0",
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        "version": "7.77.0",
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        "version": "7.76.1",
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        "lessThanOrEqual": "7.76.1",
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        "version": "7.76.0",
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        "version": "7.75.0",
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        "version": "7.74.0",
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      {
        "version": "7.73.0",
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      {
        "version": "7.72.0",
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      {
        "version": "7.71.1",
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        "version": "7.71.0",
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      {
        "version": "7.70.0",
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      {
        "version": "7.69.1",
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        "version": "7.69.0",
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        "version": "7.68.0",
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      {
        "version": "7.67.0",
        "status": "affected",
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        "version": "7.66.0",
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        "version": "7.65.3",
        "status": "affected",
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        "version": "7.65.2",
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        "version": "7.65.0",
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        "version": "7.64.1",
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      {
        "version": "7.64.0",
        "status": "affected",
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        "version": "7.63.0",
        "status": "affected",
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        "versionType": "semver"
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        "version": "7.62.0",
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        "version": "7.61.1",
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        "version": "7.61.0",
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      {
        "version": "7.60.0",
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      {
        "version": "7.59.0",
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      {
        "version": "7.58.0",
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        "lessThanOrEqual": "7.58.0",
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        "version": "7.57.0",
        "status": "affected",
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      {
        "version": "7.56.1",
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        "lessThanOrEqual": "7.56.1",
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        "lessThanOrEqual": "7.56.0",
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      {
        "version": "7.55.1",
        "status": "affected",
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        "version": "7.55.0",
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        "version": "7.54.1",
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        "version": "7.54.0",
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        "version": "7.49.1",
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    ],
    "defaultStatus": "unaffected"
  }
]