Infinite loop in EDK II Network Package
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
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat. Impact type from CWE-835.
Summary
EDK2's Network Package is susceptible to an infinite lop vulnerability when parsing a PadN option in the Destination Options header of IPv6. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Availability.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
Red Hat 3 advisories
- RHSA-2024:8104 Released 2024-10-15 · Red Hat rating Moderateedk2 security update
- Red Hat Enterprise Linux AppStream EUS (v.8.8) edk2-20220126gitbb1bba3d77-4.el8_8.6, edk2-aarch64-20220126gitbb1bba3d77-4.el8_8.6, edk2-ovmf-20220126gitbb1bba3d77-4.el8_8.6
- RHSA-2024:3017 Released 2024-05-22 · Red Hat rating Importantedk2 security update
- Red Hat Enterprise Linux AppStream (v. 8) edk2-20220126gitbb1bba3d77-13.el8_10, edk2-aarch64-20220126gitbb1bba3d77-13.el8_10, edk2-ovmf-20220126gitbb1bba3d77-13.el8_10
- RHSA-2024:2264 Released 2024-04-30 · Red Hat rating Importantedk2 security update
- Red Hat Enterprise Linux AppStream (v. 9) edk2-20231122-6.el9, edk2-aarch64-20231122-6.el9, edk2-ovmf-20231122-6.el9
- Red Hat Enterprise Linux CRB (v. 9) edk2-aarch64-20231122-6.el9, edk2-ovmf-20231122-6.el9, edk2-tools-20231122-6.el9 +1
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Advisory ·
TianoCore edk2 — github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6…
5 records Highest priority Priority HIGH 1 HIGH, 3 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2023-24236 Out-of-Bounds Read in EDK II Network PackagePriority MEDIUM 62
- TI-2023-24237 Infinite loop in EDK II Network PackagePriority MEDIUM 43
- TI-2023-24239 Buffer Overflow in EDK II Network PackagePriority MEDIUM 40
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux AppStream (v. 8) | Fixed | RHSA-2024:3017 |
| Red Hat Enterprise Linux AppStream (v. 9) | Fixed | RHSA-2024:2264 |
| Red Hat Enterprise Linux AppStream EUS (v.8.8) | Fixed | RHSA-2024:8104 |
| Red Hat Enterprise Linux CRB (v. 9) | Fixed | RHSA-2024:2264 |
Timeline
- 2026-10-02 Threatist record created from CVE-2023-45233
- 2026-10-03 Alias added: GHSA-p9h6-p7cr-7842
References
Advisory 2
More TianoCore Edk2 vulnerabilities
- TI-2026-79288 Out-of-bounds write in Google Brotli decoder KEVCVSS 4.0CRITICAL 9.2
- TI-2023-24240 Buffer Overflow in EDK II Network Package CVSS 3.1HIGH 8.8
- TI-2023-24235 Buffer Overflow in EDK II Network Package CVSS 3.1HIGH 8.8
- TI-2023-26565 An insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu's EDK2. CVSS 3.1MEDIUM 6.7
- TI-2023-24236 Out-of-Bounds Read in EDK II Network Package CVSS 3.1MEDIUM 6.5
- TI-2021-16172 Existing CommBuffer checks in SmmEntryPoint will not catch underflow when computing BufferSize. CVSS 3.1CRITICAL 9.8
Sources
- CVE-2023-45233 · CVE Program
- CVE-2023-45233 · NVD
- FIRST EPSS
- GHSA-p9h6-p7cr-7842 · GitHub Advisory Database · CC BY 4.0
- CVE-2023-45233 · 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