7.5

CVE-2022-43680

Exploit

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.

Data is provided by the National Vulnerability Database (NVD)
Libexpat ProjectLibexpat Version <= 2.4.9
DebianDebian Linux Version10.0
DebianDebian Linux Version11.0
FedoraprojectFedora Version35
FedoraprojectFedora Version36
FedoraprojectFedora Version37
NetappH300s Firmware Version-
   NetappH300s Version-
NetappH500s Firmware Version-
   NetappH500s Version-
NetappH700s Firmware Version-
   NetappH700s Version-
NetappH410s Firmware Version-
   NetappH410s Version-
NetappH410c Firmware Version-
   NetappH410c Version-
NetappActive Iq Unified Manager Version- SwPlatformvmware_vsphere
NetappHci Compute Node Firmware Version-
   NetappHci Compute Node Version-
Zu dieser CVE wurde keine CISA KEV oder CERT.AT-Warnung gefunden.
EPSS Metriken
Type Source Score Percentile
EPSS FIRST.org 0.31% 0.538
CVSS Metriken
Source Base Score Exploit Score Impact Score Vector string
nvd@nist.gov 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
134c704f-9b21-4f2e-91b3-4a467353bcc0 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
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 Any operations using the original pointer are no longer valid because the memory "belongs" to the code that operates on the new pointer.

https://github.com/libexpat/libexpat/issues/649
Patch
Third Party Advisory
Exploit
Issue Tracking
https://github.com/libexpat/libexpat/pull/616
Patch
Third Party Advisory
Exploit
Issue Tracking
https://github.com/libexpat/libexpat/pull/650
Patch
Third Party Advisory
Exploit
Issue Tracking