Vulnerabilities
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CVE Vulnerabilities

CVE-2022-46880

Use After Free

Published: Dec 22, 2022 | Modified: Apr 15, 2025
CVSS 3.x
6.5
MEDIUM
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
7.5 IMPORTANT
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2022-46880
CWEhttps://cwe.mitre.org/data/definitions/416.html

A missing check related to tex units could have led to a use-after-free and potentially exploitable crash.Note: This advisory was added on December 13th, 2022 after we better understood the impact of the issue. The fix was included in the original release of Firefox 105. This vulnerability affects Firefox ESR < 102.6, Firefox < 105, and Thunderbird < 102.6.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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
FirefoxMozilla*105.0 (excluding)
Firefox_esrMozilla*102.6 (excluding)
ThunderbirdMozilla*102.6 (excluding)
Red Hat Enterprise Linux 7RedHatfirefox-0:102.6.0-1.el7_9*
Red Hat Enterprise Linux 7RedHatthunderbird-0:102.6.0-2.el7_9*
Red Hat Enterprise Linux 8RedHatfirefox-0:102.6.0-1.el8_7*
Red Hat Enterprise Linux 8RedHatthunderbird-0:102.6.0-2.el8_7*
Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsRedHatfirefox-0:102.6.0-1.el8_1*
Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsRedHatthunderbird-0:102.6.0-2.el8_1*
Red Hat Enterprise Linux 8.2 Advanced Update SupportRedHatfirefox-0:102.6.0-1.el8_2*
Red Hat Enterprise Linux 8.2 Advanced Update SupportRedHatthunderbird-0:102.6.0-2.el8_2*
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRedHatfirefox-0:102.6.0-1.el8_2*
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRedHatthunderbird-0:102.6.0-2.el8_2*
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRedHatfirefox-0:102.6.0-1.el8_2*
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRedHatthunderbird-0:102.6.0-2.el8_2*
Red Hat Enterprise Linux 8.4 Extended Update SupportRedHatfirefox-0:102.6.0-1.el8_4*
Red Hat Enterprise Linux 8.4 Extended Update SupportRedHatthunderbird-0:102.6.0-2.el8_4*
Red Hat Enterprise Linux 8.6 Extended Update SupportRedHatfirefox-0:102.6.0-1.el8_6*
Red Hat Enterprise Linux 8.6 Extended Update SupportRedHatthunderbird-0:102.6.0-2.el8_6*
Red Hat Enterprise Linux 9RedHatfirefox-0:102.6.0-1.el9_1*
Red Hat Enterprise Linux 9RedHatthunderbird-0:102.6.0-2.el9_1*
Red Hat Enterprise Linux 9.0 Extended Update SupportRedHatfirefox-0:102.6.0-1.el9_0*
Red Hat Enterprise Linux 9.0 Extended Update SupportRedHatthunderbird-0:102.6.0-2.el9_0*
ThunderbirdUbuntubionic*
ThunderbirdUbuntudevel*
ThunderbirdUbuntufocal*
ThunderbirdUbuntujammy*
ThunderbirdUbuntukinetic*
ThunderbirdUbuntulunar*
ThunderbirdUbuntutrusty*
ThunderbirdUbuntuupstream*
ThunderbirdUbuntuxenial*

Potential Mitigations

References

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