Vulnerability Name:

CVE-2018-18503 (CCN-156248)

Assigned:2018-10-19
Published:2019-01-29
Updated:2019-02-08
Summary:When JavaScript is used to create and manipulate an audio buffer, a potentially exploitable crash may occur because of a compartment mismatch in some situations. This vulnerability affects Firefox < 65.
CVSS v3 Severity:8.8 High (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 (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
6.5 Medium (CCN CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H)
5.7 Medium (CCN Temporal CVSS v3.1 Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/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): Required
Scope:Scope (S): Unchanged
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): High
CVSS v2 Severity:6.8 Medium (CVSS v2 Vector: AV:N/AC:M/Au:N/C:P/I:P/A:P)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Medium
Authentication (Au): None
Impact Metrics:Confidentiality (C): Partial
Integrity (I): Partial
Availibility (A): Partial
6.8 Medium (CCN CVSS v2 Vector: AV:N/AC:L/Au:S/C:N/I:N/A:C)
Exploitability Metrics:Access Vector (AV): Network
Access Complexity (AC): Low
Athentication (Au): Single_Instance
Impact Metrics:Confidentiality (C): None
Integrity (I): None
Availibility (A): Complete
Vulnerability Type:CWE-119
Vulnerability Consequences:Denial of Service
References:Source: MITRE
Type: CNA
CVE-2018-18503

Source: BID
Type: Third Party Advisory, VDB Entry
106773

Source: XF
Type: UNKNOWN
firefox-cve201818503-dos(156248)

Source: UBUNTU
Type: Third Party Advisory
USN-3874-1

Source: CCN
Type: Mozilla Foundation Security Advisory 2019-01
Security vulnerabilities fixed in Firefox 65

Source: CONFIRM
Type: Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-01/

Vulnerable Configuration:Configuration 1:
  • cpe:/a:mozilla:firefox:*:*:*:*:*:*:*:* (Version < 65.0)

    • Configuration 2:
  • cpe:/o:canonical:ubuntu_linux:14.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:16.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.04:*:*:*:lts:*:*:*
  • OR cpe:/o:canonical:ubuntu_linux:18.10:*:*:*:*:*:*:*

    • Configuration CCN 1:
  • cpe:/a:mozilla:firefox:64:*:*:*:*:*:*:*

    • * Denotes that component is vulnerable
    Oval Definitions
    Definition IDClassTitleLast Modified
    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.disco:def:2018185030000000
    V
    		CVE-2018-18503 on Ubuntu 19.04 (disco) - medium.
    2019-02-05
    oval:com.ubuntu.bionic:def:201818503000
    V
    		CVE-2018-18503 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-02-05
    oval:com.ubuntu.cosmic:def:2018185030000000
    V
    		CVE-2018-18503 on Ubuntu 18.10 (cosmic) - medium.
    2019-02-05
    oval:com.ubuntu.cosmic:def:201818503000
    V
    		CVE-2018-18503 on Ubuntu 18.10 (cosmic) - medium.
    2019-02-05
    oval:com.ubuntu.bionic:def:2018185030000000
    V
    		CVE-2018-18503 on Ubuntu 18.04 LTS (bionic) - medium.
    2019-02-05
    oval:com.ubuntu.trusty:def:201818503000
    V
    		CVE-2018-18503 on Ubuntu 14.04 LTS (trusty) - medium.
    2019-02-05
    oval:com.ubuntu.xenial:def:2018185030000000
    V
    		CVE-2018-18503 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-02-05
    oval:com.ubuntu.xenial:def:201818503000
    V
    		CVE-2018-18503 on Ubuntu 16.04 LTS (xenial) - medium.
    2019-02-05
    BACK
    mozilla firefox *
    canonical ubuntu linux 14.04
    canonical ubuntu linux 16.04
    canonical ubuntu linux 18.04
    canonical ubuntu linux 18.10
    mozilla firefox 64