Vulnerability-Lookup

FKIE_CVE-2020-12418

Vulnerability from fkie_nvd - Published: 2020-07-09 15:15 - Updated: 2026-06-17 02:51

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N

Summary

Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript. This vulnerability affects Firefox ESR < 68.10, Firefox < 78, and Thunderbird < 68.10.0.

References

URL	Tags
security@mozilla.org	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html	Mailing List, Third Party Advisory
security@mozilla.org	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html	Mailing List, Third Party Advisory
security@mozilla.org	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html	Mailing List, Third Party Advisory
security@mozilla.org	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html	Mailing List, Third Party Advisory
security@mozilla.org	https://bugzilla.mozilla.org/show_bug.cgi?id=1641303	Issue Tracking, Permissions Required, Vendor Advisory
security@mozilla.org	https://security.gentoo.org/glsa/202007-09	Third Party Advisory
security@mozilla.org	https://security.gentoo.org/glsa/202007-10	Third Party Advisory
security@mozilla.org	https://usn.ubuntu.com/4421-1/	Third Party Advisory
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2020-24/	Vendor Advisory
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2020-25/	Vendor Advisory
security@mozilla.org	https://www.mozilla.org/security/advisories/mfsa2020-26/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00023.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00026.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00027.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	http://lists.opensuse.org/opensuse-security-announce/2020-07/msg00049.html	Mailing List, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://bugzilla.mozilla.org/show_bug.cgi?id=1641303	Issue Tracking, Permissions Required, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.gentoo.org/glsa/202007-09	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://security.gentoo.org/glsa/202007-10	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://usn.ubuntu.com/4421-1/	Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.mozilla.org/security/advisories/mfsa2020-24/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.mozilla.org/security/advisories/mfsa2020-25/	Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108	https://www.mozilla.org/security/advisories/mfsa2020-26/	Vendor Advisory

Impacted products

Vendor	Product	Version
mozilla	firefox	*
mozilla	firefox_esr	*
mozilla	thunderbird	*
canonical	ubuntu_linux	16.04
canonical	ubuntu_linux	18.04
canonical	ubuntu_linux	19.10
canonical	ubuntu_linux	20.04
opensuse	leap	15.1
opensuse	leap	15.2

JSON

To clipboard

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          "product": "Firefox ESR",
          "vendor": "Mozilla",
          "versions": [
            {
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            }
          ]
        },
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          "vendor": "Mozilla",
          "versions": [
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              "version": "unspecified",
              "versionType": "custom"
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      "value": "Manipulating individual parts of a URL object could have caused an out-of-bounds read, leaking process memory to malicious JavaScript. This vulnerability affects Firefox ESR \u003c 68.10, Firefox \u003c 78, and Thunderbird \u003c 68.10.0."
    },
    {
      "lang": "es",
      "value": "La manipulaci\u00f3n de partes individuales de un objeto URL podr\u00eda haber causado una lectura fuera de l\u00edmites, filtrando la memoria de proceso a un JavaScript malicioso. Esta vulnerabilidad afecta a Firefox ESR versiones anteriores a 68.10, Firefox versiones anteriores a 78 y Thunderbird versiones anteriores a 68.10.0"
    }
  ],
  "id": "CVE-2020-12418",
  "lastModified": "2026-06-17T02:51:47.893",
  "metrics": {
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}

CVE-2020-12418 (GCVE-0-2020-12418)

Vulnerability from cvelistv5 – Published: 2020-07-09 14:19 – Updated: 2024-08-04 11:56

Summary

Severity

No CVSS data available.

CWE

Information disclosure due to manipulated URL object

Assigner

mozilla mitre root

References

11 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=1641303	x_refsource_MISC
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
http://lists.opensuse.org/opensuse-security-annou…	vendor-advisoryx_refsource_SUSE
https://usn.ubuntu.com/4421-1/	vendor-advisoryx_refsource_UBUNTU
https://security.gentoo.org/glsa/202007-09	vendor-advisoryx_refsource_GENTOO
https://security.gentoo.org/glsa/202007-10	vendor-advisoryx_refsource_GENTOO

Impacted products

3 products

Vendor	Product	Version
Mozilla	Firefox ESR	Affected: unspecified , < 68.10 (custom)
Mozilla	Firefox	Affected: unspecified , < 78 (custom)
Mozilla	Thunderbird	Affected: unspecified , < 68.10.0 (custom)

Show details on NVD website

JSON

To clipboard

{
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      {
        "providerMetadata": {
          "dateUpdated": "2024-08-04T11:56:51.647Z",
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            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202007-09"
        },
        {
          "name": "GLSA-202007-10",
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            "vendor-advisory",
            "x_refsource_GENTOO"
          ],
          "url": "https://security.gentoo.org/glsa/202007-10"
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      "x_legacyV4Record": {
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          "ASSIGNER": "security@mozilla.org",
          "ID": "CVE-2020-12418",
          "STATE": "PUBLIC"
        },
        "affects": {
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                    {
                      "product_name": "Firefox ESR",
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                            "version_affected": "\u003c",
                            "version_value": "68.10"
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                      }
                    },
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                      "product_name": "Firefox",
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                    {
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            },
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              "name": "https://www.mozilla.org/security/advisories/mfsa2020-26/",
              "refsource": "MISC",
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            },
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    "dateReserved": "2020-04-28T00:00:00.000Z",
    "dateUpdated": "2024-08-04T11:56:51.647Z",
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}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

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FKIE_CVE-2020-12418

CVE-2020-12418 (GCVE-0-2020-12418)

Tags

Sightings

Nomenclature

Related by attack behaviour