github - ghsa-6g99-7xcp-vcw9

GHSA-6G99-7XCP-VCW9

Vulnerability from github – Published: 2021-12-09 00:00 – Updated: 2022-03-17 00:06

Details

The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox < 94, Thunderbird < 91.3, and Firefox ESR < 91.3.

Severity ?

10.0 (Critical)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H

Show details on source website

JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2021-38503"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-863"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2021-12-08T22:15:00Z",
    "severity": "CRITICAL"
  },
  "details": "The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox \u003c 94, Thunderbird \u003c 91.3, and Firefox ESR \u003c 91.3.",
  "id": "GHSA-6g99-7xcp-vcw9",
  "modified": "2022-03-17T00:06:36Z",
  "published": "2021-12-09T00:00:27Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2021-38503"
    },
    {
      "type": "WEB",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1729517"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2021/12/msg00030.html"
    },
    {
      "type": "WEB",
      "url": "https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202202-03"
    },
    {
      "type": "WEB",
      "url": "https://security.gentoo.org/glsa/202208-14"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2021/dsa-5026"
    },
    {
      "type": "WEB",
      "url": "https://www.debian.org/security/2022/dsa-5034"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2021-48"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2021-49"
    },
    {
      "type": "WEB",
      "url": "https://www.mozilla.org/security/advisories/mfsa2021-50"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H",
      "type": "CVSS_V3"
    }
  ]
}

CVE-2021-38503 (GCVE-0-2021-38503)

Vulnerability from cvelistv5 – Published: 2021-12-08 21:22 – Updated: 2024-08-04 01:44

Summary

Severity ?

No CVSS data available.

CWE

iframe sandbox rules did not apply to XSLT stylesheets

Assigner

mozilla

References

URL

Tags

	https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
	https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
	https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_MISC
	https://bugzilla.mozilla.org/show_bug.cgi?id=1729517	x_refsource_MISC
	https://www.debian.org/security/2021/dsa-5026	vendor-advisoryx_refsource_DEBIAN
	https://lists.debian.org/debian-lts-announce/2021…	mailing-listx_refsource_MLIST
	https://www.debian.org/security/2022/dsa-5034	vendor-advisoryx_refsource_DEBIAN
	https://lists.debian.org/debian-lts-announce/2022…	mailing-listx_refsource_MLIST
	https://security.gentoo.org/glsa/202202-03	vendor-advisoryx_refsource_GENTOO
	https://security.gentoo.org/glsa/202208-14	vendor-advisoryx_refsource_GENTOO

Impacted products

Vendor

Product

Version

Mozilla

Firefox

Affected: unspecified , < 94 (custom)

	Mozilla	Thunderbird	Affected: unspecified , < 91.3 (custom)
	Mozilla	Firefox ESR	Affected: unspecified , < 91.3 (custom)

Show details on NVD website

JSON

To clipboard

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          "tags": [
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          "url": "https://lists.debian.org/debian-lts-announce/2022/01/msg00001.html"
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            "x_refsource_GENTOO"
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          "tags": [
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}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-6G99-7XCP-VCW9

CVE-2021-38503 (GCVE-0-2021-38503)

Tags

Sightings

Nomenclature