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CVE Vulnerabilities

CVE-2018-12363

Use After Free

Published: Oct 18, 2018 | Modified: Nov 21, 2024
CVSS 3.x
8.8
HIGH
Source:
NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
CVSS 2.x
6.8 MEDIUM
AV:N/AC:M/Au:N/C:P/I:P/A:P
RedHat/V2
RedHat/V3
8.8 IMPORTANT
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2018-12363
CWEhttps://cwe.mitre.org/data/definitions/416.html

A use-after-free vulnerability can occur when script uses mutation events to move DOM nodes between documents, resulting in the old document that held the node being freed but the node still having a pointer referencing it. This results in a potentially exploitable crash. This vulnerability affects Thunderbird < 60, Thunderbird < 52.9, Firefox ESR < 60.1, Firefox ESR < 52.9, and Firefox < 61.

Weakness

The product reuses or references memory after it has been freed. At some point afterward, the memory may be allocated again and saved in another pointer, while the original pointer references a location somewhere within the new allocation. Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.

Affected Software

NameVendorStart VersionEnd Version
Enterprise_linux_desktopRedhat6.0 (including)6.0 (including)
Enterprise_linux_desktopRedhat7.0 (including)7.0 (including)
Enterprise_linux_serverRedhat6.0 (including)6.0 (including)
Enterprise_linux_serverRedhat7.0 (including)7.0 (including)
Enterprise_linux_server_ausRedhat7.6 (including)7.6 (including)
Enterprise_linux_server_eusRedhat7.5 (including)7.5 (including)
Enterprise_linux_server_eusRedhat7.6 (including)7.6 (including)
Enterprise_linux_server_tusRedhat7.6 (including)7.6 (including)
Enterprise_linux_workstationRedhat6.0 (including)6.0 (including)
Enterprise_linux_workstationRedhat7.0 (including)7.0 (including)
Red Hat Enterprise Linux 6RedHatfirefox-0:60.1.0-5.el6*
Red Hat Enterprise Linux 6RedHatthunderbird-0:52.9.1-1.el6*
Red Hat Enterprise Linux 7RedHatfirefox-0:60.1.0-4.el7_5*
Red Hat Enterprise Linux 7RedHatthunderbird-0:52.9.1-1.el7_5*
FirefoxUbuntuartful*
FirefoxUbuntubionic*
FirefoxUbuntudevel*
FirefoxUbuntutrusty*
FirefoxUbuntuupstream*
FirefoxUbuntuxenial*
ThunderbirdUbuntuartful*
ThunderbirdUbuntubionic*
ThunderbirdUbuntudevel*
ThunderbirdUbuntutrusty*
ThunderbirdUbuntuupstream*
ThunderbirdUbuntuxenial*

Potential Mitigations

References

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