CVE-2022-43680 : In libexpat through 2.4.9, there is a use-after free caused by overeager destruc

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XML_ExternalEntityParserCreate in out-of-memory situations.

Published 2022-10-24 14:15:53

Updated 2024-01-21 02:08:05

Source MITRE

View at NVD, CVE.org

Vulnerability category: Memory Corruption

Products affected by CVE-2022-43680

Debian » Debian Linux » Version: 10.0
cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Matching versions
Debian » Debian Linux » Version: 11.0
cpe:2.3:o:debian:debian_linux:11.0:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 35
cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 36
cpe:2.3:o:fedoraproject:fedora:36:*:*:*:*:*:*:*
Matching versions
Fedoraproject » Fedora » Version: 37
cpe:2.3:o:fedoraproject:fedora:37:*:*:*:*:*:*:*
Matching versions
Netapp » Oncommand Workflow Automation » Version: N/A
cpe:2.3:a:netapp:oncommand_workflow_automation:-:*:*:*:*:*:*:*
Matching versions
Netapp » Active Iq Unified Manager » Version: N/A For Vmware Vsphere
cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vmware_vsphere:*:*
Matching versions
Netapp » Solidfire & Hci Management Node » Version: N/A
cpe:2.3:a:netapp:solidfire_\&_hci_management_node:-:*:*:*:*:*:*:*
Matching versions
Netapp » Hci Compute Node Firmware » Version: N/A
cpe:2.3:o:netapp:hci_compute_node_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » Hci Compute Node » Version: N/A
Netapp » H410c Firmware » Version: N/A
cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H410c » Version: N/A
Netapp » H300s Firmware » Version: N/A
cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H300s » Version: N/A
Netapp » H500s Firmware » Version: N/A
cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H500s » Version: N/A
Netapp » H700s Firmware » Version: N/A
cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H700s » Version: N/A
Netapp » H410s Firmware » Version: N/A
cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:*
Matching versions
When used together with: Netapp » H410s » Version: N/A
Libexpat Project » Libexpat
Versions up to, including, (<=) 2.4.9
cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*
Matching versions

Exploit prediction scoring system (EPSS) score for CVE-2022-43680

EPSS FAQ

0.24%

Probability of exploitation activity in the next 30 days EPSS Score History

~ 46 %

Percentile, the proportion of vulnerabilities that are scored at or less

CVSS scores for CVE-2022-43680

Base Score	Base Severity	CVSS Vector	Exploitability Score	Impact Score	Score Source
7.5	HIGH	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	3.9	3.6	NIST
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High
7.5	HIGH	AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H	N/A	N/A	Oracle:CPUOct2023
Attack Vector: Network Attack Complexity: Low Privileges Required: None User Interaction: None Scope: Unchanged Confidentiality: None Integrity: None Availability: High

CWE ids for CVE-2022-43680

CWE-416 Use After Free

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.

Assigned by: nvd@nist.gov (Primary)

References for CVE-2022-43680

https://security.netapp.com/advisory/ntap-20221118-0007/

CVE-2022-43680 libexpat Vulnerability in NetApp Products | NetApp Product Security
Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/

[SECURITY] Fedora 37 Update: mingw-expat-2.5.0-1.fc37 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/

[SECURITY] Fedora 36 Update: mingw-expat-2.5.0-1.fc36 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/

[SECURITY] Fedora 36 Update: mingw-expat-2.5.0-1.fc36 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/

[SECURITY] Fedora 36 Update: mingw-pixman-0.42.2-1.fc36 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/

[SECURITY] Fedora 35 Update: mingw-pixman-0.42.2-1.fc35 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/

[SECURITY] Fedora 35 Update: mingw-pixman-0.42.2-1.fc35 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/

[SECURITY] Fedora 37 Update: mingw-pixman-0.42.2-1.fc37 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://github.com/libexpat/libexpat/issues/649

[CVE-2022-43680] XML_ParserFree may free parser->m_dtd memory in out-of-memory situations when it should not · Issue #649 · libexpat/libexpat · GitHub
Exploit;Issue Tracking;Patch;Third Party Advisory
https://www.debian.org/security/2022/dsa-5266

Debian -- Security Information -- DSA-5266-1 expat
Third Party Advisory
https://github.com/libexpat/libexpat/pull/616

Bugfixes by c01db33f · Pull Request #616 · libexpat/libexpat · GitHub
Exploit;Issue Tracking;Patch;Third Party Advisory
https://github.com/libexpat/libexpat/pull/650

[CVE-2022-43680] Fix overeager DTD destruction (fixes #649) by hartwork · Pull Request #650 · libexpat/libexpat · GitHub
Exploit;Issue Tracking;Patch;Third Party Advisory
https://security.gentoo.org/glsa/202210-38

Expat: Denial of Service (GLSA 202210-38) — Gentoo security
Third Party Advisory
http://www.openwall.com/lists/oss-security/2024/01/03/5

oss-security - CVE-2022-43680: Apache OpenOffice: "Use after free" fixed in libexpat
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/

[SECURITY] Fedora 36 Update: mingw-pixman-0.42.2-1.fc36 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url
http://www.openwall.com/lists/oss-security/2023/12/28/5

oss-security - CVE-2022-43680: Apache OpenOffice: "Use after free" fixed in libexpat
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/

[SECURITY] Fedora 35 Update: mingw-expat-2.5.0-1.fc35 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/

[SECURITY] Fedora 37 Update: mingw-expat-2.5.0-1.fc37 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/

[SECURITY] Fedora 35 Update: mingw-expat-2.5.0-1.fc35 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory
https://lists.debian.org/debian-lts-announce/2022/10/msg00033.html

[SECURITY] [DLA 3165-1] expat security update
Mailing List;Third Party Advisory
https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/

[SECURITY] Fedora 37 Update: mingw-pixman-0.42.2-1.fc37 - package-announce - Fedora Mailing-Lists
Mailing List;Third Party Advisory

CVEs referencing this url

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Vulnerability Details : CVE-2022-43680

Products affected by CVE-2022-43680

Exploit prediction scoring system (EPSS) score for CVE-2022-43680

CVSS scores for CVE-2022-43680

CWE ids for CVE-2022-43680

References for CVE-2022-43680