CVE-2022-40303
HIGHCVSS 7.5/10EPSS 41.37%
Last modified
CVE-2022-40303 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. 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. EPSS estimates a 41.37% chance of exploitation in the next 30 days.
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.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Xmlsoft | Libxml2 | < 2.10.3 |
| Netapp | Active Iq Unified Manager | All versions |
| Netapp | Clustered Data Ontap | All versions |
| Netapp | Clustered Data Ontap Antivirus Connector | All versions |
| Netapp | Netapp Manageability Sdk | All versions |
| Netapp | Ontap Select Deploy Administration Utility | All versions |
| Netapp | Snapmanager | All versions |
| Apple | Ipados | < 15.7.2 |
| Apple | Iphone Os | < 15.7.2 |
| Apple | Macos | >= 11.0, < 11.7.2 |
| Apple | Macos | >= 12.0, < 12.6.2 |
| Apple | Tvos | < 16.2 |
| Apple | Watchos | < 9.2 |
| Netapp | H300s Firmware | All versions |
| Netapp | H500s Firmware | All versions |
| Netapp | H700s Firmware | All versions |
| Netapp | H410s Firmware | All versions |
| Netapp | H410c Firmware | All versions |
References
- https://seclists.org/fulldisclosure/2022/Dec/21Mailing List, Third Party Advisory
- https://seclists.org/fulldisclosure/2022/Dec/24Mailing List, Third Party Advisory
- https://seclists.org/fulldisclosure/2022/Dec/25Mailing List, Third Party Advisory
- https://seclists.org/fulldisclosure/2022/Dec/26Mailing List, Third Party Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/c846986356fc149915a74972bf198abc266bc2c0Patch, Third Party Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3Release Notes, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221209-0003/Third Party Advisory
- https://support.apple.com/kb/HT213531Third Party Advisory
- https://support.apple.com/kb/HT213533Third Party Advisory
- https://support.apple.com/kb/HT213534Third Party Advisory
- https://support.apple.com/kb/HT213535Third Party Advisory
- https://support.apple.com/kb/HT213536Third Party Advisory
- https://seclists.org/fulldisclosure/2022/Dec/21Mailing List, Third Party Advisory
- https://seclists.org/fulldisclosure/2022/Dec/24Mailing List, Third Party Advisory
- https://seclists.org/fulldisclosure/2022/Dec/25Mailing List, Third Party Advisory
- https://seclists.org/fulldisclosure/2022/Dec/26Mailing List, Third Party Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/commit/c846986356fc149915a74972bf198abc266bc2c0Patch, Third Party Advisory
- https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3Release Notes, Third Party Advisory
- https://security.netapp.com/advisory/ntap-20221209-0003/Third Party Advisory
- https://support.apple.com/kb/HT213531Third Party Advisory
- https://support.apple.com/kb/HT213533Third Party Advisory
- https://support.apple.com/kb/HT213534Third Party Advisory
- https://support.apple.com/kb/HT213535Third Party Advisory
- https://support.apple.com/kb/HT213536Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Modified
Frequently Asked Questions
What is CVE-2022-40303?
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 severe is CVE-2022-40303?
CVE-2022-40303 has a CVSS score of 7.5/10 (HIGH severity). The EPSS model estimates a 41.37% probability of exploitation in the next 30 days.
How do I fix CVE-2022-40303?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
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Are you affected by CVE-2022-40303?
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Scan your code nowSource: NVD / NIST