An issue was discovered in libxml2 before 2.10.3.
Priority HIGH 67CWE-190Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Partial Red Hat: 7 fixed, 2 without a fix
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA and Red Hat. Impact type from CWE-190 and the CVSS impact.
Summary
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.
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.41365 98th percentileScored 2026-11-07
Fix Partial Red Hat: 4 advisoriesRed Hat: 7 fixed, 2 without a fix
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 22
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* | before 2.10.3 | Vulnerable | xmlsoft |
| cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vsphere:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:netapp_manageability_sdk:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:hyper-v:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* | before 15.7.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* | before 15.7.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* | 11.0 to before 11.7.2; 12.0 to before 12.6.2 | Vulnerable | Apple |
- cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:* Versions before 2.10.3 Vulnerable ·xmlsoft
- cpe:2.3:a:netapp:active_iq_unified_manager:-:*:*:*:*:vsphere:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:clustered_data_ontap:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:clustered_data_ontap_antivirus_connector:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:netapp_manageability_sdk:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:ontap_select_deploy_administration_utility:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:a:netapp:snapmanager:-:*:*:*:*:hyper-v:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:o:apple:ipados:*:*:*:*:*:*:*:* Versions before 15.7.2 Vulnerable ·Apple
- cpe:2.3:o:apple:iphone_os:*:*:*:*:*:*:*:* Versions before 15.7.2 Vulnerable ·Apple
- cpe:2.3:o:apple:macos:*:*:*:*:*:*:*:* Versions 11.0 to before 11.7.2; 12.0 to before 12.6.2 Vulnerable ·Apple
Show 12 more CPE
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* | before 16.2 | Vulnerable | Apple |
| cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* | before 9.2 | Vulnerable | Apple |
| cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
| cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* | not specified by NVD | Vulnerable | NetApp |
| cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* | not specified by NVD | Running on | NetApp |
- cpe:2.3:o:apple:tvos:*:*:*:*:*:*:*:* Versions before 16.2 Vulnerable ·Apple
- cpe:2.3:o:apple:watchos:*:*:*:*:*:*:*:* Versions before 9.2 Vulnerable ·Apple
- cpe:2.3:o:netapp:h300s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h300s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h500s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h500s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h700s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h700s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h410s_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h410s:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
- cpe:2.3:o:netapp:h410c_firmware:-:*:*:*:*:*:*:* Versions not specified by NVD Vulnerable ·NetApp
- cpe:2.3:h:netapp:h410c:-:*:*:*:*:*:*:* Versions not specified by NVD Running on ·NetApp
Remediation
Red Hat 4 advisories
- RHSA-2024:0413 Released 2024-01-25 · Red Hat rating Moderatelibxml2 security update
- Red Hat Enterprise Linux AppStream EUS (v.8.6) libxml2-devel-2.9.7-13.el8_6.4
- Red Hat Enterprise Linux BaseOS EUS (v.8.6) libxml2-2.9.7-13.el8_6.4, python3-libxml2-2.9.7-13.el8_6.4
- RHSA-2023:0338 Released 2023-01-23 · Red Hat rating Moderatelibxml2 security update
- Red Hat Enterprise Linux AppStream (v. 9) libxml2-devel-2.9.13-3.el9_1
- Red Hat Enterprise Linux BaseOS (v. 9) libxml2-2.9.13-3.el9_1, python3-libxml2-2.9.13-3.el9_1
- RHSA-2023:0173 Released 2023-01-16 · Red Hat rating Moderatelibxml2 security update
- Red Hat Enterprise Linux AppStream (v. 8) libxml2-devel-2.9.7-15.el8_7.1
- Red Hat Enterprise Linux BaseOS (v. 8) libxml2-2.9.7-15.el8_7.1, python3-libxml2-2.9.7-15.el8_7.1
Show 1 more Red Hat advisories
- RHSA-2022:8841 Released 2022-12-08 · Red Hat rating ImportantRed Hat JBoss Core Services Apache HTTP Server 2.4.51 SP1 security update
- Red Hat JBoss Core Services
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 7 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2023:0173 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2023:0338 |
| Red Hat Enterprise Linux AppStream EUS (v.8.6) | Fixed | RHSA-2024:0413 |
| Red Hat Enterprise Linux BaseOS (v. 8) | Fixed | RHSA-2023:0173 |
| Red Hat Enterprise Linux BaseOS (v. 9) | Fixed | RHSA-2023:0338 |
| Red Hat Enterprise Linux BaseOS EUS (v.8.6) | Fixed | RHSA-2024:0413 |
| Red Hat JBoss Core Services | Fixed | RHSA-2022:8841 |
Timeline
- 2026-10-02 Threatist record created from CVE-2022-40303
- 2026-10-03 Alias added: GHSA-94m8-rgr8-rg5g
- 2026-10-09 Fix available: RHSA-2022:8841 · Red Hat
- 2026-10-16 Fix available: Red Hat JBoss Core Services · Red Hat
References
Advisory 11
- https://gitlab.gnome.org/GNOME/libxml2/-/tags/v2.10.3
- https://security.netapp.com/advisory/ntap-20221209-0003/
- https://support.apple.com/kb/HT213534
- https://support.apple.com/kb/HT213533
- https://support.apple.com/kb/HT213531
- https://support.apple.com/kb/HT213536
- https://support.apple.com/kb/HT213535
- 20221220 APPLE-SA-2022-12-13-2 iOS 15.7.2 and iPadOS 15.7.2
- 20221220 APPLE-SA-2022-12-13-6 macOS Big Sur 11.7.2
- 20221220 APPLE-SA-2022-12-13-7 tvOS 16.2
- 20221220 APPLE-SA-2022-12-13-5 macOS Monterey 12.6.2
Sources
- CVE-2022-40303 · CVE Program
- CVE-2022-40303 · NVD
- FIRST EPSS
- GHSA-94m8-rgr8-rg5g · GitHub Advisory Database · CC BY 4.0
- CVE-2022-40303 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences