NVD - CVE-2017-7793

CVE-2017-7793 Detail

Current Description

A use-after-free vulnerability can occur in the Fetch API when the worker or the associated window are freed when still in use, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 56, Firefox ESR < 52.4, and Thunderbird < 52.4.

Source: MITRE
Description Last Modified: 06/11/2018
View Analysis Description

Impact

CVSS v3.0 Severity and Metrics:

Base Score: 9.8 CRITICAL
Vector: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H (V3 legend)
Impact Score: 5.9
Exploitability Score: 3.9

Attack Vector (AV): Network
Attack Complexity (AC): Low
Privileges Required (PR): None
User Interaction (UI): None
Scope (S): Unchanged
Confidentiality (C): High
Integrity (I): High
Availability (A): High

CVSS v2.0 Severity and Metrics:

Base Score: 7.5 HIGH
Vector: (AV:N/AC:L/Au:N/C:P/I:P/A:P) (V2 legend)
Impact Subscore: 6.4
Exploitability Subscore: 10.0

Access Vector (AV): Network
Access Complexity (AC): Insufficient_Info
Authentication (AU): None
Confidentiality (C): Partial
Integrity (I): Partial
Availability (A): Partial
Additional Information:
Allows unauthorized disclosure of information
Allows unauthorized modification
Allows disruption of service

References to Advisories, Solutions, and Tools

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Hyperlink	Resource
http://www.securityfocus.com/bid/101055	Third Party Advisory VDB Entry
http://www.securitytracker.com/id/1039465	Third Party Advisory VDB Entry
https://access.redhat.com/errata/RHSA-2017:2831	Third Party Advisory
https://access.redhat.com/errata/RHSA-2017:2885	Third Party Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1371889	Issue Tracking Patch Vendor Advisory
https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html	Third Party Advisory
https://security.gentoo.org/glsa/201803-14	Third Party Advisory
https://www.debian.org/security/2017/dsa-3987	Third Party Advisory
https://www.debian.org/security/2017/dsa-4014	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2017-21/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-22/	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-23/	Vendor Advisory

Technical Details

Vulnerability Type (View All)

Use After Free (CWE-416)

Vulnerable software and versions Switch to CPE 2.2

Denotes Vulnerable Software
Are we missing a CPE here? Please let us know.

Change History

2 change records found - show changes

Initial Analysis - 8/9/2018 12:14:59 PM

CVE Modified by MITRE - 6/12/2018 9:29:12 PM

Action	Type	New Value
Added	Reference	http://www.securityfocus.com/bid/101055 [No Types Assigned]
Added	Reference	http://www.securitytracker.com/id/1039465 [No Types Assigned]
Added	Reference	https://access.redhat.com/errata/RHSA-2017:2831 [No Types Assigned]
Added	Reference	https://access.redhat.com/errata/RHSA-2017:2885 [No Types Assigned]
Added	Reference	https://lists.debian.org/debian-lts-announce/2017/11/msg00000.html [No Types Assigned]
Added	Reference	https://security.gentoo.org/glsa/201803-14 [No Types Assigned]
Added	Reference	https://www.debian.org/security/2017/dsa-3987 [No Types Assigned]
Added	Reference	https://www.debian.org/security/2017/dsa-4014 [No Types Assigned]

Quick Info

CVE Dictionary Entry:
CVE-2017-7793
NVD Published Date:
06/11/2018
NVD Last Modified:
08/09/2018

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Information Technology Laboratory

National Vulnerability Database