CVE-2022-43680
High
Description
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.
SeverityHigh
CVSS7.5
Exploit probability—
Product
Libexpat
PublishedOct 24, 2022
First seenOct 24, 2022
Weakness typeCWE-416Use after free
How to fix
Vendor advisories
- debian.org/security/2022/dsa-5266
- security.gentoo.org/glsa/202210-38
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/BY4OPSIB33ETNUXZY2UPZ4NGQ3OKDY4D/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AJ5VY2VYXE4WTRGQ6LMGLF6FV3SY37YE/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/IUJ2BULJTZ2BMSKQHB6US674P55UCWWS/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/XG5XOOB7CD55CEE6OJYKSACSIMQ4RWQ6/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DPQVIF6TOJNY2T3ZZETFKR4G34FFREBQ/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FFCOMBSOJKLIKCGCJWHLJXO4EVYBG7AR/
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| libexpat_project libexpat | v ≤ 2.4.9 | — |
| debian debian_linux | 10.0, 11.0 | — |
| fedoraproject fedora | 35, 36, 37 | — |
| netapp h300s_firmware | No range specified | — |
| netapp h500s_firmware | No range specified | — |
| netapp h700s_firmware | No range specified | — |
| netapp h410s_firmware | No range specified | — |
| netapp h410c_firmware | No range specified | — |
| netapp active_iq_unified_manager | No range specified | — |
| netapp oncommand_workflow_automation | No range specified | — |
| netapp solidfire_\&_hci_management_node | No range specified | — |
| netapp hci_compute_node_firmware | No range specified | — |
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