CVE-2023-38575
First published: Tue Mar 12 2024(Updated: )
Non-transparent sharing of return predictor targets between contexts in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access.
Credit: secure@intel.com secure@intel.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| ubuntu/intel-microcode | <3.20240514.0ubuntu0.18.04.1+ | 3.20240514.0ubuntu0.18.04.1+ |
| ubuntu/intel-microcode | <3.20240514.0ubuntu0.20.04.1 | 3.20240514.0ubuntu0.20.04.1 |
| ubuntu/intel-microcode | <3.20240514.0ubuntu0.22.04.1 | 3.20240514.0ubuntu0.22.04.1 |
| ubuntu/intel-microcode | <3.20240514.0ubuntu0.23.10.1 | 3.20240514.0ubuntu0.23.10.1 |
| ubuntu/intel-microcode | <3.20240514.0ubuntu0.16.04.1+ | 3.20240514.0ubuntu0.16.04.1+ |
| debian/intel-microcode | <=3.20231114.1~deb11u1<=3.20231114.1~deb12u1 | 3.20240514.1~deb11u1 3.20240514.1~deb12u1 3.20240813.2 |
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Reference Links
- https://lists.debian.org/debian-lts-announce/2024/05/msg00003.html
- https://security.netapp.com/advisory/ntap-20240405-0008/
- https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00982.html
- https://www.cve.org/CVERecord?id=CVE-2023-38575
- https://ubuntu.com/security/notices/USN-6797-1
- https://nvd.nist.gov/vuln/detail/CVE-2023-38575
- https://launchpad.net/bugs/cve/CVE-2023-38575
- https://security-tracker.debian.org/tracker/CVE-2023-38575
- https://ubuntu.com/security/CVE-2023-38575
- https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/releases/tag/microcode-20240312
- https://www.bleepingcomputer.com/news/security/intel-amd-cpus-on-linux-impacted-by-newly-disclosed-spectre-bypass/
- https://bugzilla.redhat.com/show_bug.cgi/show_bug.cgi?id=2270735
- https://access.redhat.com/errata/RHSA-2024:9401
- https://bugzilla.redhat.com/show_bug.cgi?id=2270701
Frequently Asked Questions
What is the severity of CVE-2023-38575?
CVE-2023-38575 is classified as a medium severity vulnerability due to the potential information disclosure through non-transparent sharing of return predictor targets.
How do I fix CVE-2023-38575?
To remediate CVE-2023-38575, update the intel-microcode package to the latest versions specific to your Ubuntu or Debian distribution.
Who is affected by CVE-2023-38575?
CVE-2023-38575 affects certain Intel processors along with specific versions of the intel-microcode package on various Linux distributions.
What are the potential consequences of CVE-2023-38575?
The primary consequence of CVE-2023-38575 is the risk of information leakage which could be exploited by an authorized user with local access.
Is CVE-2023-38575 a hardware or software vulnerability?
CVE-2023-38575 is a vulnerability that manifests in the software interfacing with Intel hardware, specifically related to microcode behavior.
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