Unintended Proxy or Intermediary ('Confused Deputy') Affecting edk2-ovmf package, versions <0:20190501stable-2.amzn2.0.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-AMZN2-EDK2OVMF-1674054
- published27 Sept 2021
- disclosed27 Mar 2019
Introduced: 27 Mar 2019
CVE-2018-12182 (opens in a new tab)How to fix?
Upgrade Amazon-Linux:2 edk2-ovmf to version 0:20190501stable-2.amzn2.0.1 or higher.
This issue was patched in ALAS2-2019-1290.
NVD Description
Note: Versions mentioned in the description apply only to the upstream edk2-ovmf package and not the edk2-ovmf package as distributed by Amazon-Linux.
See How to fix? for Amazon-Linux:2 relevant fixed versions and status.
Insufficient memory write check in SMM service for EDK II may allow an authenticated user to potentially enable escalation of privilege, information disclosure and/or denial of service via local access.
References
- http://www.securityfocus.com/bid/107648
- https://edk2-docs.gitbooks.io/security-advisory/content/sw-smi-confused-deputy-smramsavestate_c.html
- https://support.hpe.com/hpsc/doc/public/display?docLocale=en_US&docId=emr_na-hpesbhf03912en_us
- http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2018-12182
- https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TQYVZRFEXSN3KS43AVH4D7QX553EZQYP/
- https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TQYVZRFEXSN3KS43AVH4D7QX553EZQYP/