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CVE-2018-18500 Details

Description

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:9.8 CRITICALVector:CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html	CVE
https://access.redhat.com/errata/RHSA-2019:0218	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0219	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0269	CVE	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0270	CVE	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00025.html	CVE	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00024.html	CVE	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201903-04	CVE	Third Party Advisory
https://security.gentoo.org/glsa/201904-07	CVE
https://usn.ubuntu.com/3874-1/	CVE	Third Party Advisory
https://usn.ubuntu.com/3897-1/	CVE	Third Party Advisory
https://www.debian.org/security/2019/dsa-4376	CVE	Third Party Advisory
https://www.debian.org/security/2019/dsa-4392	CVE	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2019-01/	CVE	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-02/	CVE	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-03/	CVE	Vendor Advisory
http://www.securityfocus.com/bid/106781	CVE	Third Party AdvisoryVDB Entry
http://lists.opensuse.org/opensuse-security-announce/2019-07/msg00021.html	[email protected]
https://access.redhat.com/errata/RHSA-2019:0218	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0219	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0269	[email protected]	Third Party Advisory
https://access.redhat.com/errata/RHSA-2019:0270	[email protected]	Third Party Advisory
https://lists.debian.org/debian-lts-announce/2019/01/msg00025.html	[email protected]	Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2019/02/msg00024.html	[email protected]	Mailing ListThird Party Advisory
https://security.gentoo.org/glsa/201903-04	[email protected]	Third Party Advisory
https://security.gentoo.org/glsa/201904-07	[email protected]
https://usn.ubuntu.com/3874-1/	[email protected]	Third Party Advisory
https://usn.ubuntu.com/3897-1/	[email protected]	Third Party Advisory
https://www.debian.org/security/2019/dsa-4376	[email protected]	Third Party Advisory
https://www.debian.org/security/2019/dsa-4392	[email protected]	Third Party Advisory
https://www.mozilla.org/security/advisories/mfsa2019-01/	[email protected]	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-02/	[email protected]	Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2019-03/	[email protected]	Vendor Advisory
http://www.securityfocus.com/bid/106781	[email protected]	Third Party AdvisoryVDB Entry

see all 34 references

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-416	Use After Free	[email protected]

Affected Products

Product	Versions
mozilla firefox	< 65.0
CPE cpe:2.3:a:mozilla:firefox:::::::: Remediation No remediation found in references.
mozilla firefox esr	< 60.5
CPE cpe:2.3:a:mozilla:firefox_esr:::::::: Remediation No remediation found in references.
mozilla thunderbird	< 60.5
CPE cpe:2.3:a:mozilla:thunderbird:::::::: Remediation No remediation found in references.
canonical ubuntu linux	14.04 16.04 18.04 18.10
CPE cpe:2.3:o:canonical:ubuntu_linux:14.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:16.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:18.04::::lts::: cpe:2.3:o:canonical:ubuntu_linux:18.10:::::::* Remediation No remediation found in references.
debian debian linux	8.0 9.0
CPE cpe:2.3:o:debian:debian_linux:8.0:::::::* cpe:2.3:o:debian:debian_linux:9.0:::::::* Remediation No remediation found in references.
redhat enterprise linux desktop	6.0 7.0
CPE cpe:2.3:o:redhat:enterprise_linux_desktop:6.0:::::::* cpe:2.3:o:redhat:enterprise_linux_desktop:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux server	6.0 7.0
CPE cpe:2.3:o:redhat:enterprise_linux_server:6.0:::::::* cpe:2.3:o:redhat:enterprise_linux_server:7.0:::::::* Remediation No remediation found in references.
redhat enterprise linux server aus	7.6
CPE cpe:2.3:o:redhat:enterprise_linux_server_aus:7.6:::::::* Remediation No remediation found in references.
redhat enterprise linux server eus	7.6
CPE cpe:2.3:o:redhat:enterprise_linux_server_eus:7.6:::::::* Remediation No remediation found in references.
redhat enterprise linux server tus	7.6
CPE cpe:2.3:o:redhat:enterprise_linux_server_tus:7.6:::::::* Remediation No remediation found in references.
redhat enterprise linux workstation	6.0 7.0
CPE cpe:2.3:o:redhat:enterprise_linux_workstation:6.0:::::::* cpe:2.3:o:redhat:enterprise_linux_workstation:7.0:::::::* Remediation No remediation found in references.

Change History

12 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Jul 20, 2019	CVE Modified	[email protected]
Apr 2, 2019	CVE Modified	[email protected]
Mar 11, 2019	Modified Analysis	[email protected]
Mar 11, 2019	CVE Modified	[email protected]
Feb 27, 2019	Modified Analysis	[email protected]
Feb 27, 2019	CVE Modified	[email protected]
Feb 17, 2019	CVE Modified	[email protected]
Feb 8, 2019	Initial Analysis	[email protected]
Feb 6, 2019	CVE Modified	[email protected]

CVE-2018-18500 Details

Description

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References to Advisories, Solutions, and Tools

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