Vulnerabilities
Misconfiguration
Compliance
CVE Vulnerabilities

CVE-2022-40674

Use After Free

Published: Sep 14, 2022 | Modified: May 30, 2025
CVSS 3.x
8.1
HIGH
Source:
NVD
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS 2.x
RedHat/V2
RedHat/V3
8.1 IMPORTANT
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
Ubuntu
MEDIUM
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Additional information
NVDhttps://nvd.nist.gov/vuln/detail/CVE-2022-40674
CWEhttps://cwe.mitre.org/data/definitions/416.html

libexpat before 2.4.9 has a use-after-free in the doContent function in xmlparse.c.

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 Any operations using the original pointer are no longer valid because the memory “belongs” to the code that operates on the new pointer.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
LibexpatLibexpat_project*2.4.9 (excluding)
Red Hat Enterprise Linux 6 Extended Lifecycle SupportRedHatexpat-0:2.0.1-15.el6_10*
Red Hat Enterprise Linux 6 Extended Lifecycle SupportRedHatcompat-expat1-0:1.95.8-9.el6_10*
Red Hat Enterprise Linux 7RedHatexpat-0:2.1.0-15.el7_9*
Red Hat Enterprise Linux 7RedHatfirefox-0:102.3.0-7.el7_9*
Red Hat Enterprise Linux 7RedHatthunderbird-0:102.3.0-4.el7_9*
Red Hat Enterprise Linux 8RedHatthunderbird-0:102.3.0-4.el8_6*
Red Hat Enterprise Linux 8RedHatfirefox-0:102.3.0-7.el8_6*
Red Hat Enterprise Linux 8RedHatmingw-expat-0:2.4.8-2.el8*
Red Hat Enterprise Linux 8RedHatexpat-0:2.2.5-8.el8_6.3*
Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsRedHatfirefox-0:102.3.0-7.el8_1*
Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsRedHatthunderbird-0:102.3.0-4.el8_1*
Red Hat Enterprise Linux 8.1 Update Services for SAP SolutionsRedHatexpat-0:2.2.5-3.el8_1.2*
Red Hat Enterprise Linux 8.2 Extended Update SupportRedHatthunderbird-0:102.3.0-4.el8_2*
Red Hat Enterprise Linux 8.2 Extended Update SupportRedHatfirefox-0:102.3.0-7.el8_2*
Red Hat Enterprise Linux 8.2 Extended Update SupportRedHatexpat-0:2.2.5-3.el8_2.3*
Red Hat Enterprise Linux 8.4 Extended Update SupportRedHatthunderbird-0:102.3.0-4.el8_4*
Red Hat Enterprise Linux 8.4 Extended Update SupportRedHatfirefox-0:102.3.0-7.el8_4*
Red Hat Enterprise Linux 8.4 Extended Update SupportRedHatexpat-0:2.2.5-4.el8_4.4*
Red Hat Enterprise Linux 9RedHatexpat-0:2.2.10-12.el9_0.3*
Red Hat Enterprise Linux 9RedHatfirefox-0:102.3.0-7.el9_0*
Red Hat Enterprise Linux 9RedHatthunderbird-0:102.3.0-4.el9_0*
Red Hat Enterprise Linux 9RedHatexpat-0:2.2.10-12.el9_0.3*
Red Hat Virtualization 4 for Red Hat Enterprise Linux 8RedHatredhat-virtualization-host-0:4.5.3-202211170828_8.6*
Text-Only JBCSRedHatexpat*
Apache2Ubuntutrusty*
Apache2Ubuntuxenial*
Apr-utilUbuntutrusty*
Apr-utilUbuntuxenial*
AyttmUbuntutrusty*
AyttmUbuntuxenial*
CableswigUbuntutrusty*
CableswigUbuntuxenial*
CadaverUbuntubionic*
CadaverUbuntufocal*
CadaverUbuntukinetic*
CadaverUbuntulunar*
CadaverUbuntumantic*
CadaverUbuntuoracular*
CadaverUbuntuplucky*
CadaverUbuntutrusty*
CadaverUbuntuxenial*
CmakeUbuntutrusty*
CmakeUbuntuxenial*
Coin3Ubuntubionic*
Coin3Ubuntufocal*
Coin3Ubuntukinetic*
Coin3Ubuntulunar*
Coin3Ubuntumantic*
Coin3Ubuntuoracular*
Coin3Ubuntuplucky*
Coin3Ubuntutrusty*
Coin3Ubuntutrusty/esm*
Coin3Ubuntuxenial*
ExpatUbuntubionic*
ExpatUbuntudevel*
ExpatUbuntuesm-infra-legacy/trusty*
ExpatUbuntuesm-infra/bionic*
ExpatUbuntuesm-infra/focal*
ExpatUbuntuesm-infra/xenial*
ExpatUbuntufocal*
ExpatUbuntujammy*
ExpatUbuntukinetic*
ExpatUbuntulunar*
ExpatUbuntumantic*
ExpatUbuntunoble*
ExpatUbuntuoracular*
ExpatUbuntuplucky*
ExpatUbuntuquesting*
ExpatUbuntutrusty*
ExpatUbuntutrusty/esm*
ExpatUbuntuxenial*
FirefoxUbuntubionic*
FirefoxUbuntufocal*
FirefoxUbuntutrusty*
FirefoxUbuntuxenial*
GdcmUbuntubionic*
GdcmUbuntufocal*
GdcmUbuntukinetic*
GdcmUbuntulunar*
GdcmUbuntumantic*
GdcmUbuntuoracular*
GdcmUbuntuplucky*
GdcmUbuntutrusty*
GdcmUbuntutrusty/esm*
GdcmUbuntuxenial*
GhostscriptUbuntutrusty*
GhostscriptUbuntuxenial*
InsighttoolkitUbuntutrusty*
InsighttoolkitUbuntuxenial*
Insighttoolkit4Ubuntutrusty*
Insighttoolkit4Ubuntuxenial*
LibxmltokUbuntubionic*
LibxmltokUbuntukinetic*
LibxmltokUbuntulunar*
LibxmltokUbuntumantic*
LibxmltokUbuntutrusty*
LibxmltokUbuntuupstream*
MatanzaUbuntubionic*
MatanzaUbuntudevel*
MatanzaUbuntuesm-apps/bionic*
MatanzaUbuntuesm-apps/focal*
MatanzaUbuntuesm-apps/jammy*
MatanzaUbuntuesm-apps/noble*
MatanzaUbuntuesm-apps/xenial*
MatanzaUbuntufocal*
MatanzaUbuntujammy*
MatanzaUbuntukinetic*
MatanzaUbuntulunar*
MatanzaUbuntumantic*
MatanzaUbuntunoble*
MatanzaUbuntuoracular*
MatanzaUbuntuplucky*
MatanzaUbuntuquesting*
MatanzaUbuntutrusty*
MatanzaUbuntuxenial*
SmartUbuntubionic*
SmartUbuntutrusty*
SmartUbuntuxenial*
Swish-eUbuntubionic*
Swish-eUbuntufocal*
Swish-eUbuntukinetic*
Swish-eUbuntulunar*
Swish-eUbuntumantic*
Swish-eUbuntuoracular*
Swish-eUbuntuplucky*
Swish-eUbuntutrusty*
Swish-eUbuntuxenial*
TdomUbuntubionic*
TdomUbuntufocal*
TdomUbuntukinetic*
TdomUbuntulunar*
TdomUbuntumantic*
TdomUbuntuoracular*
TdomUbuntuplucky*
TdomUbuntutrusty*
TdomUbuntuxenial*
Texlive-binUbuntutrusty*
Texlive-binUbuntuxenial*
ThunderbirdUbuntubionic*
ThunderbirdUbuntudevel*
ThunderbirdUbuntufocal*
ThunderbirdUbuntujammy*
ThunderbirdUbuntukinetic*
ThunderbirdUbuntulunar*
ThunderbirdUbuntumantic*
ThunderbirdUbuntunoble*
ThunderbirdUbuntuoracular*
ThunderbirdUbuntuplucky*
ThunderbirdUbuntuquesting*
ThunderbirdUbuntutrusty*
ThunderbirdUbuntuxenial*
Vnc4Ubuntubionic*
Vnc4Ubuntutrusty*
Vnc4Ubuntutrusty/esm*
Vnc4Ubuntuxenial*
VtkUbuntutrusty*
VtkUbuntutrusty/esm*
VtkUbuntuxenial*
Wbxml2Ubuntubionic*
Wbxml2Ubuntufocal*
Wbxml2Ubuntukinetic*
Wbxml2Ubuntulunar*
Wbxml2Ubuntumantic*
Wbxml2Ubuntuoracular*
Wbxml2Ubuntuplucky*
Wbxml2Ubuntutrusty*
Wbxml2Ubuntuxenial*
Xmlrpc-cUbuntubionic*
Xmlrpc-cUbuntufocal*
Xmlrpc-cUbuntukinetic*
Xmlrpc-cUbuntulunar*
Xmlrpc-cUbuntumantic*
Xmlrpc-cUbuntuoracular*
Xmlrpc-cUbuntuplucky*
Xmlrpc-cUbuntutrusty*
Xmlrpc-cUbuntutrusty/esm*
Xmlrpc-cUbuntuxenial*

Potential Mitigations

References

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