CVE-2017-5403 - CVE House

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Status published Critical CVE-2017-5403

When adding a range to an object in the DOM,...

9.8 CVSS

Vulnerability Description

When adding a range to an object in the DOM, it is possible to use "addRange" to add the range to an incorrect root object. This triggers a use-after-free, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 52 and Thunderbird < 52.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

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Credits & Attribution

No credits recorded in the NVD database.

References

More from Mozilla

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Memory safety bugs fixed in Firefox 142 and Thunderbird 142

Spoofing issue in the Address Bar component of Firefox Focus for Android

Memory safety bugs fixed in Firefox ESR 115.27, Firefox ESR 128.14, Thunderbird ESR 128.14, Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142

Memory safety bugs fixed in Firefox ESR 140.2, Thunderbird ESR 140.2, Firefox 142 and Thunderbird 142

Spoofing issue in the Address Bar component

Affected Vendor

Mozilla

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Affected Software

Firefox, Thunderbird

Vulnerable Versions:

unspecified

Timeline

Official Publish: June 11th, 2018

Last Modified: August 5th, 2024

Added to House: July 20th, 2026

CVSS Vectors

V3: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

No CWE data available

MITRE ATT&CK TTPs

No associated TTPs found for this vulnerability.