CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
96.6%
A use-after-free vulnerability can occur while parsing an HTML5 stream in
concert with custom HTML elements. This results in the stream parser object
being freed while still in use, leading to a potentially exploitable crash.
This vulnerability affects Thunderbird < 60.5, Firefox ESR < 60.5, and
Firefox < 65.
Author | Note |
---|---|
tyhicks | mozjs contains a copy of the SpiderMonkey JavaScript engine |
OS | Version | Architecture | Package | Version | Filename |
---|---|---|---|---|---|
ubuntu | 18.04 | noarch | firefox | < 65.0+build2-0ubuntu0.18.04.1 | UNKNOWN |
ubuntu | 18.10 | noarch | firefox | < 65.0+build2-0ubuntu0.18.10.1 | UNKNOWN |
ubuntu | 19.04 | noarch | firefox | < 65.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 19.10 | noarch | firefox | < 65.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 20.04 | noarch | firefox | < 65.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 20.10 | noarch | firefox | < 65.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 21.04 | noarch | firefox | < 65.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 21.10 | noarch | firefox | < 65.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 22.04 | noarch | firefox | < 65.0+build2-0ubuntu1 | UNKNOWN |
ubuntu | 22.10 | noarch | firefox | < 65.0+build2-0ubuntu1 | UNKNOWN |
launchpad.net/bugs/cve/CVE-2018-18500
nvd.nist.gov/vuln/detail/CVE-2018-18500
security-tracker.debian.org/tracker/CVE-2018-18500
ubuntu.com/security/notices/USN-3874-1
ubuntu.com/security/notices/USN-3897-1
www.cve.org/CVERecord?id=CVE-2018-18500
www.mozilla.org/en-US/security/advisories/mfsa2019-01/#CVE-2018-18500
www.mozilla.org/en-US/security/advisories/mfsa2019-03/#CVE-2018-18500
CVSS2
Attack Vector
NETWORK
Attack Complexity
LOW
Authentication
NONE
Confidentiality Impact
PARTIAL
Integrity Impact
PARTIAL
Availability Impact
PARTIAL
AV:N/AC:L/Au:N/C:P/I:P/A:P
CVSS3
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
EPSS
Percentile
96.6%