CVE-2021-26401
First published: Tue Mar 08 2022(Updated: )
A flaw was found in hw. The speculative execution window of AMD LFENCE/JMP mitigation (MITIGATION V2-2) may be large enough to be exploited on AMD CPUs.
Credit: psirt@amd.com psirt@amd.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| redhat/kernel | <0:2.6.32-754.49.1.el6 | 0:2.6.32-754.49.1.el6 |
| redhat/kernel-rt | <0:3.10.0-1160.83.1.rt56.1228.el7 | 0:3.10.0-1160.83.1.rt56.1228.el7 |
| redhat/kernel | <0:3.10.0-1160.83.1.el7 | 0:3.10.0-1160.83.1.el7 |
| redhat/kernel-rt | <0:4.18.0-372.9.1.rt7.166.el8 | 0:4.18.0-372.9.1.rt7.166.el8 |
| redhat/kernel | <0:4.18.0-372.9.1.el8 | 0:4.18.0-372.9.1.el8 |
| Amd Athlon X4 940 Firmware | ||
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| Amd Athlon X4 950 Firmware | ||
| Amd Athlon X4 950 | ||
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| Amd Athlon X4 970 | ||
| Amd Athlon X4 835 Firmware | ||
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| Amd Athlon X4 860k Firmware | ||
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| Amd Ryzen Threadripper Pro 5965wx Firmware | ||
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| Amd Epyc 7301 | ||
| All of | ||
| Amd Epyc 7281 Firmware | ||
| Amd Epyc 7281 | ||
| All of | ||
| Amd Epyc 7261 Firmware | ||
| Amd Epyc 7261 | ||
| All of | ||
| Amd Epyc 7251 Firmware | ||
| Amd Epyc 7251 | ||
| debian/linux | 5.10.223-1 5.10.226-1 6.1.123-1 6.1.119-1 6.12.9-1 6.12.10-1 |
Remedy
AMD recommends mitigation that uses generic retpoline.
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Reference Links
- https://www.cve.org/CVERecord?id=CVE-2021-26401 https://nvd.nist.gov/vuln/detail/CVE-2021-26401 https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1036
- https://bugzilla.redhat.com/show_bug.cgi?id=2061700
- https://access.redhat.com/errata/RHSA-2023:0187
- https://access.redhat.com/errata/RHSA-2023:0400
- https://access.redhat.com/errata/RHSA-2023:0399
- https://access.redhat.com/errata/RHSA-2022:1975
- https://access.redhat.com/errata/RHSA-2022:1988
- https://access.redhat.com/security/cve/cve-2021-26401
- https://www.amd.com/en/corporate/product-security/bulletin/amd-sb-1036
- http://www.openwall.com/lists/oss-security/2022/03/18/2
- https://launchpad.net/bugs/cve/CVE-2021-26401
- https://access.redhat.com/security/cve/CVE-2017-5715
- https://xenbits.xen.org/xsa/advisory-398.html
- https://security-tracker.debian.org/tracker/CVE-2021-26401
- https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2021-26401
- https://nvd.nist.gov/vuln/detail/CVE-2021-26401
- https://ubuntu.com/security/CVE-2021-26401
Parent vulnerabilities
(Appears in the following advisories)
- collector/redhat-cve
- agent/type
- agent/first-publish-date
- collector/launchpad-cve
- source/Launchpad
- collector/redhat-bugzilla
- source/Red Hat
- alias/CVE-2021-26401
- agent/author
- agent/severity
- collector/nvd-index
- agent/software-canonical-lookup-request
- agent/references
- agent/remedy
- collector/mitre-cve
- source/MITRE
- collector/usn-cve
- source/Ubuntu
- agent/description
- agent/event
- collector/nvd-cve
- source/NVD
- agent/software-canonical-lookup
- agent/last-modified-date
- agent/trending
- agent/tags
- collector/security-tracker-debian
- source/Debian
- agent/softwarecombine
- agent/source
- package-manager/redhat
- vendor/amd
- canonical/amd athlon x4 940 firmware
- canonical/amd athlon x4 940
- canonical/amd athlon x4 950 firmware
- canonical/amd athlon x4 950
- canonical/amd athlon x4 970 firmware
- canonical/amd athlon x4 970
- canonical/amd athlon x4 835 firmware
- canonical/amd athlon x4 835
- canonical/amd athlon x4 845 firmware
- canonical/amd athlon x4 845
- canonical/amd athlon x4 830 firmware
- canonical/amd athlon x4 830
- canonical/amd athlon x4 840 firmware
- canonical/amd athlon x4 840
- canonical/amd athlon x4 860k firmware
- canonical/amd athlon x4 860k
- canonical/amd athlon x4 870k firmware
- canonical/amd athlon x4 870k
- canonical/amd athlon x4 880k firmware
- canonical/amd athlon x4 880k
- canonical/amd athlon x4 750 firmware
- canonical/amd athlon x4 750
- canonical/amd athlon x4 760k firmware
- canonical/amd athlon x4 760k
- canonical/amd ryzen threadripper pro 5995wx firmware
- canonical/amd ryzen threadripper pro 5995wx
- canonical/amd ryzen threadripper pro 5975wx firmware
- canonical/amd ryzen threadripper pro 5975wx
- canonical/amd ryzen threadripper pro 5965wx firmware
- canonical/amd ryzen threadripper pro 5965wx
- canonical/amd ryzen threadripper pro 5955wx firmware
- canonical/amd ryzen threadripper pro 5955wx
- canonical/amd ryzen threadripper pro 5945wx firmware
- canonical/amd ryzen threadripper pro 5945wx
- canonical/amd ryzen threadripper 2990wx firmware
- canonical/amd ryzen threadripper 2990wx
- canonical/amd ryzen threadripper 2970wx firmware
- canonical/amd ryzen threadripper 2970wx
- canonical/amd ryzen threadripper 2950x firmware
- canonical/amd ryzen threadripper 2950x
- canonical/amd ryzen threadripper 2920x firmware
- canonical/amd ryzen threadripper 2920x
- canonical/amd ryzen threadripper 3970x firmware
- canonical/amd ryzen threadripper 3970x
- canonical/amd a12-9730p firmware
- canonical/amd a12-9730p
- canonical/amd a12-9700p firmware
- canonical/amd a12-9700p
- canonical/amd a10-9630p firmware
- canonical/amd a10-9630p
- canonical/amd a10-9600p firmware
- canonical/amd a10-9600p
- canonical/amd a9-9420 firmware
- canonical/amd a9-9420
- canonical/amd a9-9410 firmware
- canonical/amd a9-9410
- canonical/amd a6-9220 firmware
- canonical/amd a6-9220
- canonical/amd a6-9220c firmware
- canonical/amd a6-9220c
- canonical/amd a6-9210 firmware
- canonical/amd a6-9210
- canonical/amd a4-9120 firmware
- canonical/amd a4-9120
- canonical/amd ryzen 7 2700x firmware
- canonical/amd ryzen 7 2700x
- canonical/amd ryzen 7 2700 firmware
- canonical/amd ryzen 7 2700
- canonical/amd ryzen 5 2600x firmware
- canonical/amd ryzen 5 2600x
- canonical/amd ryzen 5 2600 firmware
- canonical/amd ryzen 5 2600
- canonical/amd ryzen 9 3950x firmware
- canonical/amd ryzen 9 3950x
- canonical/amd ryzen 9 3900x firmware
- canonical/amd ryzen 9 3900x
- canonical/amd ryzen 7 3800x firmware
- canonical/amd ryzen 7 3800x
- canonical/amd ryzen 7 3700x firmware
- canonical/amd ryzen 7 3700x
- canonical/amd ryzen 5 3600x firmware
- canonical/amd ryzen 5 3600x
- canonical/amd ryzen 5 3600 firmware
- canonical/amd ryzen 5 3600
- canonical/amd ryzen 5 3400g firmware
- canonical/amd ryzen 5 3400g
- canonical/amd ryzen 3 3300x firmware
- canonical/amd ryzen 3 3300x
- canonical/amd ryzen 3 3300g firmware
- canonical/amd ryzen 3 3300g
- canonical/amd ryzen 3 3100 firmware
- canonical/amd ryzen 3 3100
- canonical/amd ryzen 7 4700g firmware
- canonical/amd ryzen 7 4700g
- canonical/amd ryzen 7 4700ge firmware
- canonical/amd ryzen 7 4700ge
- canonical/amd ryzen 5 4600g firmware
- canonical/amd ryzen 5 4600g
- canonical/amd ryzen 5 4600ge firmware
- canonical/amd ryzen 5 4600ge
- canonical/amd ryzen 3 4300g firmware
- canonical/amd ryzen 3 4300g
- canonical/amd ryzen 3 4300ge firmware
- canonical/amd ryzen 3 4300ge
- canonical/amd athlon gold 3450g firmware
- canonical/amd athlon gold 3450g
- canonical/amd athlon gold 3150ge firmware
- canonical/amd athlon gold 3150ge
- canonical/amd athlon silver 3050ge firmware
- canonical/amd athlon silver 3050ge
- canonical/amd ryzen 3 2200u firmware
- canonical/amd ryzen 3 2200u
- canonical/amd ryzen 3 2300u firmware
- canonical/amd ryzen 3 2300u
- canonical/amd ryzen 3 pro 2300u firmware
- canonical/amd ryzen 3 pro 2300u
- canonical/amd ryzen 5 2500u firmware
- canonical/amd ryzen 5 2500u
- canonical/amd ryzen 5 pro 2500u firmware
- canonical/amd ryzen 5 pro 2500u
- canonical/amd ryzen 5 2600h firmware
- canonical/amd ryzen 5 2600h
- canonical/amd ryzen 7 2700u firmware
- canonical/amd ryzen 7 2700u
- canonical/amd ryzen 7 pro 2700u firmware
- canonical/amd ryzen 7 pro 2700u
- canonical/amd ryzen 7 2800h firmware
- canonical/amd ryzen 7 2800h
- canonical/amd athlon gold 3150u firmware
- canonical/amd athlon gold 3150u
- canonical/amd athlon silver 3050u firmware
- canonical/amd athlon silver 3050u
- canonical/amd ryzen 7 pro 3700u firmware
- canonical/amd ryzen 7 pro 3700u
- canonical/amd ryzen 5 pro 3500u firmware
- canonical/amd ryzen 5 pro 3500u
- canonical/amd ryzen 3 pro 3300u firmware
- canonical/amd ryzen 3 pro 3300u
- canonical/amd athlon pro 300u firmware
- canonical/amd athlon pro 300u
- canonical/amd ryzen 9 5980hx firmware
- canonical/amd ryzen 9 5980hx
- canonical/amd ryzen 9 5980hs firmware
- canonical/amd ryzen 9 5980hs
- canonical/amd ryzen 7 5825u firmware
- canonical/amd ryzen 7 5825u
- canonical/amd ryzen 9 5900hx firmware
- canonical/amd ryzen 9 5900hx
- canonical/amd ryzen 9 5900hs firmware
- canonical/amd ryzen 9 5900hs
- canonical/amd ryzen 5 5625u firmware
- canonical/amd ryzen 5 5625u
- canonical/amd ryzen 7 5800h firmware
- canonical/amd ryzen 7 5800h
- canonical/amd ryzen 7 5800hs firmware
- canonical/amd ryzen 7 5800hs
- canonical/amd ryzen 5 5600h firmware
- canonical/amd ryzen 5 5600h
- canonical/amd ryzen 5 5600hs firmware
- canonical/amd ryzen 5 5600hs
- canonical/amd ryzen 7 5800u firmware
- canonical/amd ryzen 7 5800u
- canonical/amd ryzen 5 5600u firmware
- canonical/amd ryzen 5 5600u
- canonical/amd ryzen 3 5425u firmware
- canonical/amd ryzen 3 5425u
- canonical/amd ryzen 3 5400u firmware
- canonical/amd ryzen 3 5400u
- canonical/amd ryzen 9 4900hs firmware
- canonical/amd ryzen 9 4900hs
- canonical/amd ryzen 7 4800h firmware
- canonical/amd ryzen 7 4800h
- canonical/amd ryzen 5 4600h firmware
- canonical/amd ryzen 5 4600h
- canonical/amd epyc 7f72 firmware
- canonical/amd epyc 7f72
- canonical/amd epyc 7f52 firmware
- canonical/amd epyc 7f52
- canonical/amd epyc 7f32 firmware
- canonical/amd epyc 7f32
- canonical/amd epyc 7h12 firmware
- canonical/amd epyc 7h12
- canonical/amd epyc 7742 firmware
- canonical/amd epyc 7742
- canonical/amd epyc 7702 firmware
- canonical/amd epyc 7702
- canonical/amd epyc 7702p firmware
- canonical/amd epyc 7702p
- canonical/amd epyc 7662 firmware
- canonical/amd epyc 7662
- canonical/amd epyc 7642 firmware
- canonical/amd epyc 7642
- canonical/amd epyc 7552 firmware
- canonical/amd epyc 7552
- canonical/amd epyc 7542 firmware
- canonical/amd epyc 7542
- canonical/amd epyc 7532 firmware
- canonical/amd epyc 7532
- canonical/amd epyc 7502 firmware
- canonical/amd epyc 7502
- canonical/amd epyc 7502p firmware
- canonical/amd epyc 7502p
- canonical/amd epyc 7452 firmware
- canonical/amd epyc 7452
- canonical/amd epyc 7402 firmware
- canonical/amd epyc 7402
- canonical/amd epyc 7402p firmware
- canonical/amd epyc 7402p
- canonical/amd epyc 7352 firmware
- canonical/amd epyc 7352
- canonical/amd epyc 7302 firmware
- canonical/amd epyc 7302
- canonical/amd epyc 7302p firmware
- canonical/amd epyc 7302p
- canonical/amd epyc 7282 firmware
- canonical/amd epyc 7282
- canonical/amd epyc 7272 firmware
- canonical/amd epyc 7272
- canonical/amd epyc 7262 firmware
- canonical/amd epyc 7262
- canonical/amd epyc 7252 firmware
- canonical/amd epyc 7252
- canonical/amd epyc 7232p firmware
- canonical/amd epyc 7232p
- canonical/amd epyc 7601 firmware
- canonical/amd epyc 7601
- canonical/amd epyc 7551p firmware
- canonical/amd epyc 7551p
- canonical/amd epyc 7551 firmware
- canonical/amd epyc 7551
- canonical/amd epyc 7501 firmware
- canonical/amd epyc 7501
- canonical/amd epyc 7451 firmware
- canonical/amd epyc 7451
- canonical/amd epyc 7401p firmware
- canonical/amd epyc 7401p
- canonical/amd epyc 7401 firmware
- canonical/amd epyc 7401
- canonical/amd epyc 7371 firmware
- canonical/amd epyc 7371
- canonical/amd epyc 7351p firmware
- canonical/amd epyc 7351p
- canonical/amd epyc 7351 firmware
- canonical/amd epyc 7351
- canonical/amd epyc 7301 firmware
- canonical/amd epyc 7301
- canonical/amd epyc 7281 firmware
- canonical/amd epyc 7281
- canonical/amd epyc 7261 firmware
- canonical/amd epyc 7261
- canonical/amd epyc 7251 firmware
- canonical/amd epyc 7251
- package-manager/debian