github - ghsa-xfmx-53v5-938g

ghsa-xfmx-53v5-938g

Vulnerability from github

Published

2022-05-14 02:00

Modified

2022-05-14 02:00

Severity ?

9.8 (Critical) - CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Details

The URL percent-encoding decode function in libcurl before 7.51.0 is called curl_easy_unescape. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer.

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2016-8622"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-787"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2018-07-31T21:29:00Z",
    "severity": "CRITICAL"
  },
  "details": "The URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer.",
  "id": "GHSA-xfmx-53v5-938g",
  "modified": "2022-05-14T02:00:02Z",
  "published": "2022-05-14T02:00:02Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2016-8622"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:2486"
    },
    {
      "type": "WEB",
      "url": "https://access.redhat.com/errata/RHSA-2018:3558"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8622"
    },
    {
      "type": "WEB",
      "url": "https://curl.haxx.se/docs/adv_20161102H.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/201701-47"
    },
    {
      "type": "WEB",
      "url": "https://www.tenable.com/security/tns-2016-21"
    },
    {
      "type": "WEB",
      "url": "http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html"
    },
    {
      "type": "WEB",
      "url": "http://www.securityfocus.com/bid/94105"
    },
    {
      "type": "WEB",
      "url": "http://www.securitytracker.com/id/1037192"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

cve-2016-8622

Vulnerability from cvelistv5

Published

2018-07-31 21:00

Modified

2024-08-06 02:27

Severity ?

3.7 (Low) - CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N

Summary

The URL percent-encoding decode function in libcurl before 7.51.0 is called `curl_easy_unescape`. Internally, even if this function would be made to allocate a unscape destination buffer larger than 2GB, it would return that new length in a signed 32 bit integer variable, thus the length would get either just truncated or both truncated and turned negative. That could then lead to libcurl writing outside of its heap based buffer.

References

▼	URL	Tags
	https://access.redhat.com/errata/RHSA-2018:3558	vendor-advisory, x_refsource_REDHAT
	https://curl.haxx.se/docs/adv_20161102H.html	x_refsource_CONFIRM
	https://www.tenable.com/security/tns-2016-21	x_refsource_CONFIRM
	http://www.securitytracker.com/id/1037192	vdb-entry, x_refsource_SECTRACK
	http://www.oracle.com/technetwork/security-advisory/cpuoct2018-4428296.html	x_refsource_CONFIRM
	http://www.securityfocus.com/bid/94105	vdb-entry, x_refsource_BID
	https://access.redhat.com/errata/RHSA-2018:2486	vendor-advisory, x_refsource_REDHAT
	https://security.gentoo.org/glsa/201701-47	vendor-advisory, x_refsource_GENTOO
	https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2016-8622	x_refsource_CONFIRM

Impacted products

▼	Vendor	Product
	The Curl Project	curl

Show details on NVD website

JSON

To clipboard

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      "metrics": [
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            "confidentialityImpact": "NONE",
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

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