GSD-2021-43538

Vulnerability from gsd - Updated: 2023-12-13 01:23
Details
By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird < 91.4.0, Firefox ESR < 91.4.0, and Firefox < 95.
Aliases
Aliases
CVE-2021-43538
To clipboard 

{
  "GSD": {
    "alias": "CVE-2021-43538",
    "description": "By misusing a race in our notification code, an attacker could have forcefully hidden the notification for pages that had received full screen and pointer lock access, which could have been used for spoofing attacks. This vulnerability affects Thunderbird \u003c 91.4.0, Firefox ESR \u003c 91.4.0, and Firefox \u003c 95.",
    "id": "GSD-2021-43538",
    "references": [
      "https://www.suse.com/security/cve/CVE-2021-43538.html",
      "https://www.debian.org/security/2022/dsa-5034",
      "https://www.debian.org/security/2021/dsa-5026",
      "https://access.redhat.com/errata/RHSA-2021:5055",
      "https://access.redhat.com/errata/RHSA-2021:5048",
      "https://access.redhat.com/errata/RHSA-2021:5047",
      "https://access.redhat.com/errata/RHSA-2021:5046",
      "https://access.redhat.com/errata/RHSA-2021:5045",
      "https://access.redhat.com/errata/RHSA-2021:5017",
      "https://access.redhat.com/errata/RHSA-2021:5016",
      "https://access.redhat.com/errata/RHSA-2021:5015",
      "https://access.redhat.com/errata/RHSA-2021:5014",
      "https://access.redhat.com/errata/RHSA-2021:5013",
      "https://ubuntu.com/security/CVE-2021-43538",
      "https://advisories.mageia.org/CVE-2021-43538.html",
      "https://security.archlinux.org/CVE-2021-43538",
      "https://linux.oracle.com/cve/CVE-2021-43538.html"
    ]
  },
  "gsd": {
    "metadata": {
      "exploitCode": "unknown",
      "remediation": "unknown",
      "reportConfidence": "confirmed",
      "type": "vulnerability"
    },
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      "id": "GSD-2021-43538",
      "modified": "2023-12-13T01:23:26.547267Z",
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      "impact": {
        "baseMetricV2": {
          "acInsufInfo": false,
          "cvssV2": {
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            "accessVector": "NETWORK",
            "authentication": "NONE",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "confidentialityImpact": "NONE",
            "integrityImpact": "PARTIAL",
            "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
            "version": "2.0"
          },
          "exploitabilityScore": 8.6,
          "impactScore": 2.9,
          "obtainAllPrivilege": false,
          "obtainOtherPrivilege": false,
          "obtainUserPrivilege": false,
          "severity": "MEDIUM",
          "userInteractionRequired": true
        },
        "baseMetricV3": {
          "cvssV3": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "NONE",
            "integrityImpact": "LOW",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "REQUIRED",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N",
            "version": "3.1"
          },
          "exploitabilityScore": 2.8,
          "impactScore": 1.4
        }
      },
      "lastModifiedDate": "2022-12-09T15:55Z",
      "publishedDate": "2021-12-08T22:15Z"
    }
  }
}


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  • 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.



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