CVE-2022-43680
expat - security update
7.5
HIGH
CVSS 3.1
EPSS 0.38%
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.
How to fix CVE-2022-43680
To remediate CVE-2022-43680, upgrade the affected package to a fixed version below.
- Alpine/expat—upgrade to 2.2.10-r8 or later
- Debian/expat—upgrade to 2.2.10-2+deb11u5 or later
- —upgrade to 2.2.6-2+deb10u6 or later
- —upgrade to 2.2.10-2+deb11u5 or later
- —no fix listed
Is CVE-2022-43680 being exploited?
Low — EPSS is 0.4%, meaning exploitation activity has not been observed at scale.
Affected packages (5)
- from 0, < 2.2.10-r8
- from 0, < 2.2.10-2+deb11u5
- from 0, < 2.2.6-2+deb10u6
- from 0, < 2.2.10-2+deb11u5
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | HIGH7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |