CVE-2023-45237: Use of a Weak PseudoRandom Number Generator in EDK II Network Package
First published: Tue Jan 16 2024(Updated: )
EDK2's Network Package is susceptible to a predictable TCP Initial Sequence Number. This vulnerability can be exploited by an attacker to gain unauthorized access and potentially lead to a loss of Confidentiality.
Credit: infosec@edk2.groups.io
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Tianocore EDK II | <=202311 |
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Reference Links
- http://www.openwall.com/lists/oss-security/2024/01/16/2
- https://github.com/tianocore/edk2/security/advisories/GHSA-hc6x-cw6p-gj7h
- https://security.netapp.com/advisory/ntap-20240307-0011/
- https://blog.quarkslab.com/pixiefail-nine-vulnerabilities-in-tianocores-edk-ii-ipv6-network-stack.html
- https://github.com/advisories/GHSA-fxqf-p2p3-gxvr
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2258708
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2258707
- https://access.redhat.com/errata/RHSA-2024:4419
- https://access.redhat.com/errata/RHSA-2024:4749
- https://access.redhat.com/errata/RHSA-2024:5297
- https://bugzilla.redhat.com/show_bug.cgi?id=2258706
Frequently Asked Questions
What is the severity of CVE-2023-45237?
CVE-2023-45237 has a high severity rating due to the potential for unauthorized access and loss of confidentiality.
How can I mitigate CVE-2023-45237?
Mitigation for CVE-2023-45237 involves updating the EDK2's Network Package to a version beyond 202311.
What impact does CVE-2023-45237 have on affected systems?
CVE-2023-45237 can allow attackers to predict TCP Initial Sequence Numbers, leading to potential attacks on data confidentiality.
Which versions of EDK2 are affected by CVE-2023-45237?
CVE-2023-45237 affects all versions of EDK2 up to and including version 202311.
Is CVE-2023-45237 being actively exploited?
As of the latest information, there are no confirmed active exploitation reports for CVE-2023-45237, but the vulnerability should be addressed promptly.
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