CVE-2022-40303
libxml2 - security update
7.5
HIGH
CVSS 3.1
EPSS 0.23%
Description
An issue was discovered in libxml2 before 2.10.3. When parsing a multi-gigabyte XML document with the XML_PARSE_HUGE parser option enabled, several integer counters can overflow. This results in an attempt to access an array at a negative 2GB offset, typically leading to a segmentation fault.
How to fix CVE-2022-40303
To remediate CVE-2022-40303, upgrade the affected package to a fixed version below.
- —upgrade to 2.9.14-r2 or later
- —upgrade to 2.9.10+dfsg-6.7+deb11u3 or later
- —upgrade to 2.9.4+dfsg1-7+deb10u5 or later
- —upgrade to 2.9.10+dfsg-6.7+deb11u3 or later
Is CVE-2022-40303 being exploited?
Low — EPSS is 0.2%, meaning exploitation activity has not been observed at scale.
Affected packages (4)
- from 0, < 2.9.14-r2
- from 0, < 2.9.10+dfsg-6.7+deb11u3
- from 0, < 2.9.4+dfsg1-7+deb10u5
- from 0, < 2.9.10+dfsg-6.7+deb11u3
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 |