Vulnerability-Lookup

CVE-2019-17021 (GCVE-0-2019-17021)

Vulnerability from cvelistv5 – Published: 2020-01-08 21:29 – Updated: 2024-08-05 01:24

Summary

During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

Severity

5.3 (Medium)


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

CWE

Heap address disclosure in parent process during content process initialization on Windows

Assigner

mozilla mitre root

References

7 references

URL	Tags
https://bugzilla.mozilla.org/show_bug.cgi?id=1599008	x_refsource_MISC
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_CONFIRM
https://www.mozilla.org/security/advisories/mfsa2…	x_refsource_CONFIRM
https://seclists.org/bugtraq/2020/Jan/18	mailing-listx_refsource_BUGTRAQ
http://packetstormsecurity.com/files/155912/Slack…	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

Impacted products

2 products

Vendor	Product	Version	CPE status
Mozilla	Firefox ESR	Affected: before 68.4	guessed
Mozilla	Firefox	Affected: before 72	guessed

Show details on NVD website

JSON

To clipboard

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SUSE-SU-2020:0068-1

Vulnerability from csaf_suse - Published: 2020-01-10 11:04 - Updated: 2020-01-10 11:04

Summary

Security update for MozillaFirefox

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2019-17021.

CVE-2019-17021

5.3 (Medium)


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

Recommended: 102 products

Open the full advisory

SUSE-SU-2020:0078-1

Vulnerability from csaf_suse - Published: 2020-01-13 09:26 - Updated: 2020-01-13 09:26

Summary

Security update for MozillaFirefox

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2019-17021.

CVE-2019-17021

5.3 (Medium)


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

Recommended: 31 products

Open the full advisory

SUSE-SU-2020:0142-1

Vulnerability from csaf_suse - Published: 2020-01-20 14:31 - Updated: 2020-01-20 14:31

Summary

Security update for MozillaThunderbird

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2019-17021.

CVE-2019-17021

5.3 (Medium)


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

Recommended: 6 products

Open the full advisory

SUSE-SU-2020:14268-1

Vulnerability from csaf_suse - Published: 2020-01-10 13:24 - Updated: 2020-01-10 13:24

Summary

Security update for MozillaFirefox

Severity

Important

Scope

7 vulnerabilities in this advisory, including CVE-2019-17021.

CVE-2019-17021

5.3 (Medium)


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

Recommended: 3 products

Open the full advisory

UBUNTU-CVE-2019-17021 (CVE-2019-17021)

Vulnerability from osv_ubuntu – Published: 2020-01-08 22:15 – Updated: 2026-04-22 07:39 – Source website

Details

During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. Note: this issue only occurs on Windows. Other operating systems are unaffected.. This vulnerability affects Firefox ESR < 68.4 and Firefox < 72.

Severity

5.3 (Medium)


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

N/A (UNKNOWN)


                    
                      medium

References

URL

Type

	https://ubuntu.com/security/CVE-2019-17021	REPORT
	https://www.mozilla.org/en-US/security/advisories…	REPORT
	https://www.mozilla.org/en-US/security/advisories…	REPORT
	https://www.mozilla.org/en-US/security/advisories…	REPORT
	https://bugzilla.mozilla.org/show_bug.cgi?id=1599008	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://www.mozilla.org/security/advisories/mfsa2…	REPORT
	https://www.cve.org/CVERecord?id=CVE-2019-17021	REPORT

JSON

To clipboard

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        }
      ],
      "versions": [
        "38.8.0~repack1-0ubuntu1",
        "38.8.0~repack1-0ubuntu3",
        "38.8.0~repack1-0ubuntu4"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "libmozjs-52-0",
            "binary_version": "52.9.1-1ubuntu3"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:20.04:LTS",
        "name": "mozjs52",
        "purl": "pkg:deb/ubuntu/mozjs52@52.9.1-1ubuntu3?arch=source\u0026distro=focal"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "52.9.1-1build1",
        "52.9.1-1ubuntu3"
      ]
    }
  ],
  "aliases": [],
  "details": "During the initialization of a new content process, a race condition occurs that can allow a content process to disclose heap addresses from the parent process. *Note: this issue only occurs on Windows. Other operating systems are unaffected.*. This vulnerability affects Firefox ESR \u003c 68.4 and Firefox \u003c 72.",
  "id": "UBUNTU-CVE-2019-17021",
  "modified": "2026-04-22T07:39:07Z",
  "published": "2020-01-08T22:15:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2019-17021"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-01/#CVE-2019-17021"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-02/#CVE-2019-17021"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/en-US/security/advisories/mfsa2020-04/#CVE-2019-17021"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.mozilla.org/show_bug.cgi?id=1599008"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2020-01/"
    },
    {
      "type": "REPORT",
      "url": "https://www.mozilla.org/security/advisories/mfsa2020-02/"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-17021"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:H/I:N/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2019-17021"
  ]
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

CVE-2019-17021 (GCVE-0-2019-17021)

SUSE-SU-2020:0068-1

SUSE-SU-2020:0078-1

SUSE-SU-2020:0142-1

SUSE-SU-2020:14268-1

UBUNTU-CVE-2019-17021 (CVE-2019-17021)

Tags

Sightings

Nomenclature

Related by attack behaviour