| Name | CVE-2021-0089 | 
| Description | Observable response discrepancy in some Intel(R) Processors may allow an authorized user to potentially enable information disclosure via local access. | 
| Source | CVE (at NVD; CERT, ENISA, LWN, oss-sec, fulldisc, Debian ELTS, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more) | 
| References | DSA-4931-1 | 
Vulnerable and fixed packages
The table below lists information on source packages.
| Source Package | Release | Version | Status | 
|---|
| xen (PTS) | bullseye | 4.14.6-1 | fixed | 
|  | bullseye (security) | 4.14.5+94-ge49571868d-1 | fixed | 
|  | bookworm | 4.17.5+23-ga4e5191dc0-1+deb12u1 | fixed | 
|  | bookworm (security) | 4.17.5+23-ga4e5191dc0-1 | fixed | 
|  | forky, sid, trixie | 4.20.0+68-g35cb38b222-1 | fixed | 
The information below is based on the following data on fixed versions.
| Package | Type | Release | Fixed Version | Urgency | Origin | Debian Bugs | 
|---|
| xen | source | stretch | (unfixed) | end-of-life |  |  | 
| xen | source | buster | 4.11.4+107-gef32c7afa2-1 |  | DSA-4931-1 |  | 
| xen | source | (unstable) | 4.14.2+25-gb6a8c4f72d-1 |  |  |  | 
Notes
[stretch] - xen <end-of-life> (DSA 4602-1)
https://xenbits.xen.org/xsa/advisory-375.html
https://www.intel.com/content/www/us/en/security-center/advisory/intel-sa-00516.html