Bug 2153871 (CVE-2022-4543, EntryBleed)
| Summary: | CVE-2022-4543 kernel: KASLR Prefetch Bypass Breaks KPTI | ||
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| Product: | [Other] Security Response | Reporter: | Rohit Keshri <rkeshri> |
| Component: | vulnerability | Assignee: | Nobody <nobody> |
| Status: | NEW --- | QA Contact: | |
| Severity: | medium | Docs Contact: | |
| Priority: | medium | ||
| Version: | unspecified | CC: | acaringi, arachman, bhu, chwhite, crwood, dbohanno, ddepaula, debarbos, dfreiber, drow, dvlasenk, ezulian, hkrzesin, jarod, jburrell, jdenham, jfaracco, jferlan, jforbes, jlelli, joe.lawrence, jpoimboe, jshortt, jstancek, jwyatt, kcarcia, kernel-mgr, kpatch-maint-bot, lgoncalv, lveyde, lzampier, michal.skrivanek, mperina, mprpic, nmurray, ptalbert, qzhao, rhandlin, rogbas, rvrbovsk, scweaver, steve.beattie, tyberry, vkumar, walters, williams, ycote |
| Target Milestone: | --- | Keywords: | Security |
| Target Release: | --- | ||
| Hardware: | All | ||
| OS: | Linux | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | If docs needed, set a value | |
| Doc Text: |
A flaw named "EntryBleed" was found in the Linux Kernel Page Table Isolation (KPTI). This issue could allow a local attacker to leak KASLR base via prefetch side-channels based on TLB timing for Intel systems.
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Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | Type: | --- | |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
| Embargoed: | |||
| Bug Depends On: | 2153872, 2153873, 2153874, 2153875, 2153876, 2153889, 2157019, 2157020, 2157021, 2157022, 2157023, 2157024, 2157025, 2157026, 2157027, 2157028, 2157029, 2157030, 2157031, 2157032, 2157033, 2157034, 2157035, 2157036, 2159068, 2159069, 2159070, 2159071, 2159072, 2159073, 2159074, 2159075, 2159076, 2159077, 2160017, 2162347, 2162349, 2164043, 2178725, 2178726, 2178727, 2178728 | ||
| Bug Blocks: | 2153798 | ||
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Description
Rohit Keshri
2022-12-15 17:53:10 UTC
Created kernel tracking bugs for this issue: Affects: fedora-all [bug 2157036] |