high
7.8
CWE
415 20 362 190
Advisory Published
CVE Published
Updated

CVE-2022-40304: Double Free

First published: Fri Oct 14 2022(Updated: )

A flaw was found in libxml2. When a reference cycle is detected in the XML entity cleanup function the XML entity data can be stored in a dictionary. In this case, the dictionary becomes corrupted resulting in logic errors, including memory errors like double free.

Credit: Ned Williamson Google Project ZeroNathan Wachholz Google Project ZeroWojciech Reguła @_r3ggi SecuRingABC Research s.r.o Mickey Jin @patch1t Tommy Muir @Muirey03 John Aakerblom @jaakerblom Weijia Dai @dwj1210 Momo SecurityIan Beer Google Project ZeroFelix Poulin-Belanger pattern-f @pattern_F_ Ant Security LightAdam Doupé ASU SEFCOMApple Maddie Stone Google Project ZeroIvan Fratric Google Project ZeroKirtiKumar Anandrao Ramchandani Adam M. Hyeon Park @tree_segment Team ApplePIEan anonymous researcher hazbinhotel Trend Micro Zero Day InitiativeSamuel Groß Google V8 SecurityDohyun Lee @l33d0hyun SSD Secure Disclosure LabsKorea Univ. Clément Lecigne Google's Threat Analysis GroupAndrey Labunets Nikita Tarakanov cve@mitre.org Mickey Jin @patch1t Offensive SecurityCsaba Fitzl @theevilbit Offensive SecurityZitong Wu(吴梓桐) Zhuhai No

Affected SoftwareAffected VersionHow to fix
redhat/libxml2<0:2.9.7-15.el8_7.1
0:2.9.7-15.el8_7.1
redhat/libxml2<0:2.9.13-3.el9_1
0:2.9.13-3.el9_1
redhat/libxml2<2.10.3
2.10.3
Apple macOS<11.7.2
11.7.2
tvOS<16.2
16.2
Apple iOS, iPadOS, and watchOS<16.1.1
16.1.1
Apple iOS, iPadOS, and watchOS<16.1.1
16.1.1
Apple iOS, iPadOS, and watchOS<15.7.2
15.7.2
Apple iOS, iPadOS, and watchOS<15.7.2
15.7.2
Apple iOS, iPadOS, and watchOS<9.2
9.2
IBM Data Virtualization on Cloud Pak for Data<=3.0
IBM Watson Query with Cloud Pak for Data<=2.2
IBM Watson Query with Cloud Pak for Data<=2.1
IBM Watson Query with Cloud Pak for Data<=2.0
IBM Data Virtualization on Cloud Pak for Data<=1.8
IBM Data Virtualization on Cloud Pak for Data<=1.7
macOS<12.6.2
12.6.2
macOS Ventura<13.0.1
13.0.1
libxml2-devel<2.10.3
NetApp Active IQ Unified Manager for VMware vSphere
IBM Data ONTAP
NetApp ONTAP Antivirus Connector
NetApp Manageability SDK
NetApp SMI-S Provider
NetApp SnapManager for Hyper-V
NetApp H300S Firmware
NetApp H300S Firmware
NetApp H500e Firmware
NetApp H500e Firmware
NetApp H700S
NetApp H700S
NetApp H410S
NetApp H410S Firmware
NetApp H410C
NetApp H410C Firmware
Apple iOS, iPadOS, and watchOS<15.7.2
iStyle @cosme iPhone OS<15.7.2
Apple iOS and macOS>=11.0<11.7.2
Apple iOS and macOS>=12.0<12.6.2
tvOS<16.2
Apple iOS, iPadOS, and watchOS<9.2

Remedy

https://gitlab.gnome.org/GNOME/libxml2/-/commit/1b41ec4e9433b05bb0376be4725804c54ef1d80b

Remedy

https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3

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Reference Links

Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the vulnerability ID for this issue in libxml2?

    The vulnerability ID for this issue in libxml2 is CVE-2022-40304.

  • What is the severity of CVE-2022-40304?

    The severity of CVE-2022-40304 is high.

  • What is the affected software of CVE-2022-40304?

    The affected software of CVE-2022-40304 includes Apple iOS, Apple iPadOS, Apple macOS Monterey, Apple macOS Big Sur, Apple macOS Ventura, Apple watchOS, Apple tvOS, and Red Hat libxml2.

  • How can I fix CVE-2022-40304 in Apple iOS, iPadOS, and watchOS?

    To fix CVE-2022-40304 in Apple iOS, iPadOS, and watchOS, update to version 15.7.2 or later for iOS, version 16.1.1 or later for iOS, and version 9.2 or later for watchOS.

  • How can I fix CVE-2022-40304 in Apple macOS Monterey, macOS Big Sur, and macOS Ventura?

    To fix CVE-2022-40304 in Apple macOS Monterey, macOS Big Sur, and macOS Ventura, update to version 12.6.2 or later for macOS Monterey, version 11.7.2 or later for macOS Big Sur, and version 13.0.1 or later for macOS Ventura.

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