CVE-2022-23852
expat - security update
9.8
CRITICAL
CVSS 3.1
EPSS 1.6%
Description
Expat (aka libexpat) before 2.4.4 has a signed integer overflow in XML_GetBuffer, for configurations with a nonzero XML_CONTEXT_BYTES.
How to fix CVE-2022-23852
To remediate CVE-2022-23852, upgrade the affected package to a fixed version below.
- Alpine/expat—upgrade to 2.2.10-r1 or later
- Debian/expat—upgrade to 2.2.10-2+deb11u1 or later
- —upgrade to 2.2.0-2+deb9u5 or later
- —no fix listed
Is CVE-2022-23852 being exploited?
Low — EPSS is 1.6%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 2.2.10-r1
- from 0, < 2.2.10-2+deb11u1
- from 0, < 2.2.0-2+deb9u5
- from 0
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | CRITICAL9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |