Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2024-0743

Unchecked Return Value

Published: Jan 23, 2024 | Modified: Nov 03, 2025
CVSS 3.x
7.5
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/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-2024-0743
CWEhttps://cwe.mitre.org/data/definitions/252.html

An unchecked return value in TLS handshake code could have caused a potentially exploitable crash. This vulnerability affects Firefox < 122, Firefox ESR < 115.9, and Thunderbird < 115.9.

Weakness

The product does not check the return value from a method or function, which can prevent it from detecting unexpected states and conditions.

Affected Software

NameVendorStart VersionEnd Version
FirefoxMozilla*122.0 (excluding)
Red Hat Enterprise Linux 7RedHatfirefox-0:115.9.1-1.el7_9*
Red Hat Enterprise Linux 7RedHatthunderbird-0:115.9.0-1.el7_9*
Red Hat Enterprise Linux 8RedHatfirefox-0:115.9.1-1.el8_9*
Red Hat Enterprise Linux 8RedHatthunderbird-0:115.9.0-1.el8_9*
Red Hat Enterprise Linux 8.2 Advanced Update SupportRedHatfirefox-0:115.9.1-1.el8_2*
Red Hat Enterprise Linux 8.2 Advanced Update SupportRedHatthunderbird-0:115.9.0-1.el8_2*
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRedHatfirefox-0:115.9.1-1.el8_2*
Red Hat Enterprise Linux 8.2 Telecommunications Update ServiceRedHatthunderbird-0:115.9.0-1.el8_2*
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRedHatfirefox-0:115.9.1-1.el8_2*
Red Hat Enterprise Linux 8.2 Update Services for SAP SolutionsRedHatthunderbird-0:115.9.0-1.el8_2*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatfirefox-0:115.9.1-1.el8_4*
Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportRedHatthunderbird-0:115.9.0-1.el8_4*
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRedHatfirefox-0:115.9.1-1.el8_4*
Red Hat Enterprise Linux 8.4 Telecommunications Update ServiceRedHatthunderbird-0:115.9.0-1.el8_4*
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRedHatfirefox-0:115.9.1-1.el8_4*
Red Hat Enterprise Linux 8.4 Update Services for SAP SolutionsRedHatthunderbird-0:115.9.0-1.el8_4*
Red Hat Enterprise Linux 8.6 Extended Update SupportRedHatfirefox-0:115.9.1-1.el8_6*
Red Hat Enterprise Linux 8.6 Extended Update SupportRedHatthunderbird-0:115.9.0-1.el8_6*
Red Hat Enterprise Linux 8.8 Extended Update SupportRedHatfirefox-0:115.9.1-1.el8_8*
Red Hat Enterprise Linux 8.8 Extended Update SupportRedHatthunderbird-0:115.9.0-1.el8_8*
Red Hat Enterprise Linux 9RedHatfirefox-0:115.9.1-1.el9_3*
Red Hat Enterprise Linux 9RedHatthunderbird-0:115.9.0-1.el9_3*
Red Hat Enterprise Linux 9.0 Extended Update SupportRedHatfirefox-0:115.9.1-1.el9_0*
Red Hat Enterprise Linux 9.0 Extended Update SupportRedHatthunderbird-0:115.9.0-1.el9_0*
Red Hat Enterprise Linux 9.2 Extended Update SupportRedHatfirefox-0:115.9.1-1.el9_2*
Red Hat Enterprise Linux 9.2 Extended Update SupportRedHatthunderbird-0:115.9.0-1.el9_2*
FirefoxUbuntubionic*
FirefoxUbuntufocal*
FirefoxUbuntulunar*
FirefoxUbuntutrusty*
FirefoxUbuntuxenial*
Mozjs102Ubuntudevel*
Mozjs102Ubuntuesm-apps/noble*
Mozjs102Ubuntujammy*
Mozjs102Ubuntulunar*
Mozjs102Ubuntumantic*
Mozjs102Ubuntunoble*
Mozjs102Ubuntuupstream*
Mozjs38Ubuntubionic*
Mozjs38Ubuntuesm-apps/bionic*
Mozjs38Ubuntuupstream*
Mozjs52Ubuntubionic*
Mozjs52Ubuntuesm-apps/focal*
Mozjs52Ubuntuesm-infra/bionic*
Mozjs52Ubuntufocal*
Mozjs52Ubuntuupstream*
Mozjs68Ubuntuesm-infra/focal*
Mozjs68Ubuntufocal*
Mozjs68Ubuntuupstream*
Mozjs78Ubuntuesm-apps/jammy*
Mozjs78Ubuntujammy*
Mozjs78Ubuntulunar*
Mozjs78Ubuntuupstream*
Mozjs91Ubuntujammy*
Mozjs91Ubuntuupstream*
ThunderbirdUbuntubionic*
ThunderbirdUbuntufocal*
ThunderbirdUbuntujammy*
ThunderbirdUbuntulunar*
ThunderbirdUbuntumantic*
ThunderbirdUbuntutrusty*
ThunderbirdUbuntuxenial*

Potential Mitigations

References

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