CVE-2023-45233: edk2 — Fix

Description

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.

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CVSS v3.1 Score

7.5

HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-835 CWE-835

Affected Products

Vendor	Product	Versions
tianocore	edk2	< 202311

References

Advisories & Patches

https://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h https://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h

Other References

http://packetstormsecurity.com/files/176574/PixieFail-Proof-Of-Concepts.html http://www.openwall.com/lists/oss-security/2024/01/16/2 https://lists.fedoraproject.org/archives/list/[email protected]/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/ https://security.netapp.com/advisory/ntap-20240307-0011/ http://packetstormsecurity.com/files/176574/PixieFail-Proof-Of-Concepts.html http://www.openwall.com/lists/oss-security/2024/01/16/2 https://lists.debian.org/debian-lts-announce/2025/06/msg00007.html https://lists.fedoraproject.org/archives/list/[email protected]/message/SJ42V7O7F4OU6R7QSQQECLB6LDHKZIMQ/ https://security.netapp.com/advisory/ntap-20240307-0011/ https://www.kb.cert.org/vuls/id/132380

Frequently Asked Questions

What is CVE-2023-45233? +

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. It has a CVSS v3.1 base score of 7.5 (HIGH).

How severe is CVE-2023-45233? +

CVE-2023-45233 has a CVSS v3.1 score of 7.5 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.

What products are affected by CVE-2023-45233? +

CVE-2023-45233 affects products from tianocore, specifically: edk2. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2023-45233? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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