Vulnerability CVE-2017-7806

Vulnerability Name:

CVE-2017-7806 (CCN-130167)

Assigned:

2017-08-08

Published:

2017-08-08

Updated:

2018-07-30

Summary:

A use-after-free vulnerability can occur when the layer manager is freed too early when rendering specific SVG content, resulting in a potentially exploitable crash. This vulnerability affects Firefox < 55.

CVSS v3 Severity:

7.5 High (CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H)
6.5 Medium (Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C)

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

8.8 High (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H)
7.7 High (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H/E:U/RL:O/RC:C)

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

CVSS v2 Severity:

5.0 Medium (CVSS v2 Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Authentication (Au): None
Impact Metrics:	Confidentiality (C): None Integrity (I): None Availibility (A): Partial

9.0 High (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:C/I:C/A:C)

Exploitability Metrics:	Access Vector (AV): Network Access Complexity (AC): Low Athentication (Au): Single_Instance
Impact Metrics:	Confidentiality (C): Complete Integrity (I): Complete Availibility (A): Complete

Vulnerability Type:

CWE-416

Vulnerability Consequences:

Gain Access

References:

Source: MITRE
Type: CNA
CVE-2017-7806

Source: BID
Type: Third Party Advisory, VDB Entry
100389

Source: CCN
Type: BID-100389
Mozilla Firefox CVE-2017-7806 Use After Free Denial of Service Vulnerability

Source: SECTRACK
Type: Third Party Advisory, VDB Entry
1039124

Source: CONFIRM
Type: Exploit, Issue Tracking, Patch
https://bugzilla.mozilla.org/show_bug.cgi?id=1378113

Source: XF
Type: UNKNOWN
firefox-cve20177806-code-exec(130167)

Source: CCN
Type: Mozilla Foundation Security Advisory 2017-18
Security vulnerabilities fixed in Firefox 55

Source: CONFIRM
Type: Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2017-18/

Vulnerable Configuration:

Configuration 1:

cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version < 55.0)

Configuration CCN 1:

cpe:/a:mozilla:firefox:54.0:*:*:*:*:*:*:*

Denotes that component is vulnerable

Oval Definitions

Definition ID	Class	Title	Last Modified
oval:org.opensuse.security:def:20177806	V	CVE-2017-7806	2022-06-30
oval:org.opensuse.security:def:111899	P	MozillaFirefox-92.0-1.2 on GA media (Moderate)	2022-01-17
oval:org.opensuse.security:def:105476	P	MozillaFirefox-92.0-1.2 on GA media (Moderate)	2021-10-01
oval:com.ubuntu.bionic:def:201778060000000	V	CVE-2017-7806 on Ubuntu 18.04 LTS (bionic) - medium.	2018-06-11
oval:com.ubuntu.artful:def:20177806000	V	CVE-2017-7806 on Ubuntu 17.10 (artful) - medium.	2018-06-11
oval:com.ubuntu.xenial:def:20177806000	V	CVE-2017-7806 on Ubuntu 16.04 LTS (xenial) - medium.	2018-06-11
oval:com.ubuntu.xenial:def:201778060000000	V	CVE-2017-7806 on Ubuntu 16.04 LTS (xenial) - medium.	2018-06-11
oval:com.ubuntu.bionic:def:20177806000	V	CVE-2017-7806 on Ubuntu 18.04 LTS (bionic) - medium.	2018-06-11
oval:com.ubuntu.disco:def:201778060000000	V	CVE-2017-7806 on Ubuntu 19.04 (disco) - medium.	2018-06-11
oval:com.ubuntu.cosmic:def:20177806000	V	CVE-2017-7806 on Ubuntu 18.10 (cosmic) - medium.	2018-06-11
oval:com.ubuntu.cosmic:def:201778060000000	V	CVE-2017-7806 on Ubuntu 18.10 (cosmic) - medium.	2018-06-11
oval:com.ubuntu.trusty:def:20177806000	V	CVE-2017-7806 on Ubuntu 14.04 LTS (trusty) - medium.	2018-06-11

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