CWE
203
Advisory Published
Updated

CVE-2021-46778

First published: Tue Aug 09 2022(Updated: )

Execution unit scheduler contention may lead to a side channel vulnerability found on AMD CPU microarchitectures codenamed “Zen 1”, “Zen 2” and “Zen 3” that use simultaneous multithreading (SMT). By measuring the contention level on scheduler queues an attacker may potentially leak sensitive information.

Credit: psirt@amd.com

Affected SoftwareAffected VersionHow to fix
Amd Athlon 3050ge Firmware
Amd Athlon 3050ge
Amd Athlon 3150g Firmware
Amd Athlon 3150g
Amd Athlon 3150ge Firmware
Amd Athlon 3150ge
Amd Epyc 7001 Firmware
Amd Epyc 7001
Amd Epyc 7002 Firmware
Amd Epyc 7002
Amd Epyc 7003 Firmware
Amd Epyc 7003
Amd Epyc 7232p Firmware
Amd Epyc 7232p
Amd Epyc 7251 Firmware
Amd Epyc 7251
Amd Epyc 7252 Firmware
Amd Epyc 7252
Amd Epyc 7261 Firmware
Amd Epyc 7261
Amd Epyc 7262 Firmware
Amd Epyc 7262
Amd Epyc 7272 Firmware
Amd Epyc 7272
Amd Epyc 7281 Firmware
Amd Epyc 7281
Amd Epyc 7282 Firmware
Amd Epyc 7282
Amd Epyc 72f3 Firmware
Amd Epyc 72f3
Amd Epyc 7301 Firmware
Amd Epyc 7301
Amd Epyc 7302 Firmware
Amd Epyc 7302
Amd Epyc 7302p Firmware
Amd Epyc 7302p
Amd Epyc 7313 Firmware
Amd Epyc 7313
Amd Epyc 7313p Firmware
Amd Epyc 7313p
Amd Epyc 7343 Firmware
Amd Epyc 7343
Amd Epyc 7351 Firmware
Amd Epyc 7351
Amd Epyc 7351p Firmware
Amd Epyc 7351p
Amd Epyc 7352 Firmware
Amd Epyc 7352
Amd Epyc 7371 Firmware
Amd Epyc 7371
Amd Epyc 7373x Firmware
Amd Epyc 7373x
Amd Epyc 73f3 Firmware
Amd Epyc 73f3
Amd Epyc 7401 Firmware
Amd Epyc 7401
Amd Epyc 7401p Firmware
Amd Epyc 7401p
Amd Epyc 7402 Firmware
Amd Epyc 7402
Amd Epyc 7402p Firmware
Amd Epyc 7402p
Amd Epyc 7413 Firmware
Amd Epyc 7413
Amd Epyc 7443 Firmware
Amd Epyc 7443
Amd Epyc 7443p Firmware
Amd Epyc 7443p
Amd Epyc 7451 Firmware
Amd Epyc 7451
Amd Epyc 7452 Firmware
Amd Epyc 7452
Amd Epyc 7453 Firmware
Amd Epyc 7453
Amd Epyc 7473x Firmware
Amd Epyc 7473x
Amd Epyc 74f3 Firmware
Amd Epyc 74f3
Amd Epyc 7501 Firmware
Amd Epyc 7501
Amd Epyc 7502 Firmware
Amd Epyc 7502
Amd Epyc 7502p Firmware
Amd Epyc 7502p
Amd Epyc 7513 Firmware
Amd Epyc 7513
Amd Epyc 7532 Firmware
Amd Epyc 7532
Amd Epyc 7542 Firmware
Amd Epyc 7542
Amd Epyc 7543 Firmware
Amd Epyc 7543
Amd Epyc 7543p Firmware
Amd Epyc 7543p
Amd Epyc 7551 Firmware
Amd Epyc 7551
Amd Epyc 7551p Firmware
Amd Epyc 7551p
Amd Epyc 7552 Firmware
Amd Epyc 7552
Amd Epyc 7573x Firmware
Amd Epyc 7573x
Amd Epyc 75f3 Firmware
Amd Epyc 75f3
Amd Epyc 7601 Firmware
Amd Epyc 7601
Amd Epyc 7642 Firmware
Amd Epyc 7642
Amd Epyc 7643 Firmware
Amd Epyc 7643
Amd Epyc 7662 Firmware
Amd Epyc 7662
Amd Epyc 7663 Firmware
Amd Epyc 7663
Amd Epyc 7702 Firmware
Amd Epyc 7702
Amd Epyc 7702p Firmware
Amd Epyc 7702p
Amd Epyc 7713 Firmware
Amd Epyc 7713
Amd Epyc 7713p Firmware
Amd Epyc 7713p
Amd Epyc 7742 Firmware
Amd Epyc 7742
Amd Epyc 7763 Firmware
Amd Epyc 7763
Amd Epyc 7773x Firmware
Amd Epyc 7773x
Amd Epyc 7f32 Firmware
Amd Epyc 7f32
Amd Epyc 7f52 Firmware
Amd Epyc 7f52
Amd Epyc 7f72 Firmware
Amd Epyc 7f72
Amd Epyc 7h12 Firmware
Amd Epyc 7h12
Amd Ryzen 3 2200u Firmware
Amd Ryzen 3 2200u
Amd Ryzen 3 2300u Firmware
Amd Ryzen 3 2300u
Amd Ryzen 3 3100 Firmware
Amd Ryzen 3 3100
Amd Ryzen 3 3200u Firmware
Amd Ryzen 3 3200u
Amd Ryzen 3 3250u Firmware
Amd Ryzen 3 3250u
Amd Ryzen 3 3300g Firmware
Amd Ryzen 3 3300g
Amd Ryzen 3 3300u Firmware
Amd Ryzen 3 3300u
Amd Ryzen 3 3300x Firmware
Amd Ryzen 3 3300x
Amd Ryzen 3 3350u Firmware
Amd Ryzen 3 3350u
Amd Ryzen 3 3450u Firmware
Amd Ryzen 3 3450u
Amd Ryzen 3 3500c Firmware
Amd Ryzen 3 3500c
Amd Ryzen 3 3500u Firmware
Amd Ryzen 3 3500u
Amd Ryzen 3 3550h Firmware
Amd Ryzen 3 3550h
Amd Ryzen 3 3580u Firmware
Amd Ryzen 3 3580u
Amd Ryzen 3 3700c Firmware
Amd Ryzen 3 3700c
Amd Ryzen 3 3700u Firmware
Amd Ryzen 3 3700u
Amd Ryzen 3 3750h Firmware
Amd Ryzen 3 3750h
Amd Ryzen 3 3780u Firmware
Amd Ryzen 3 3780u
Amd Ryzen 3 4300g Firmware
Amd Ryzen 3 4300g
Amd Ryzen 3 4300ge Firmware
Amd Ryzen 3 4300ge
Amd Ryzen 3 4300u Firmware
Amd Ryzen 3 4300u
Amd Ryzen 3 5125c Firmware
Amd Ryzen 3 5125c
Amd Ryzen 3 5300g Firmware
Amd Ryzen 3 5300g
Amd Ryzen 3 5300ge Firmware
Amd Ryzen 3 5300ge
Amd Ryzen 3 5300u Firmware
Amd Ryzen 3 5300u
Amd Ryzen 3 5400u Firmware
Amd Ryzen 3 5400u
Amd Ryzen 3 5425c Firmware
Amd Ryzen 3 5425c
Amd Ryzen 3 5425u Firmware
Amd Ryzen 3 5425u
Amd Ryzen 5 2500u Firmware
Amd Ryzen 5 2500u
Amd Ryzen 5 2600 Firmware
Amd Ryzen 5 2600
Amd Ryzen 5 2600h Firmware
Amd Ryzen 5 2600h
Amd Ryzen 5 2600x Firmware
Amd Ryzen 5 2600x
Amd Ryzen 5 2700x Firmware
Amd Ryzen 5 2700x
Amd Ryzen 5 3400g Firmware
Amd Ryzen 5 3400g
Amd Ryzen 5 3450g Firmware
Amd Ryzen 5 3450g
Amd Ryzen 5 3500u Firmware
Amd Ryzen 5 3500u
Amd Ryzen 5 3550h Firmware
Amd Ryzen 5 3550h
Amd Ryzen 5 3580u Firmware
Amd Ryzen 5 3580u
Amd Ryzen 5 3600 Firmware
Amd Ryzen 5 3600
Amd Ryzen 5 3600x Firmware
Amd Ryzen 5 3600x
Amd Ryzen 5 3600xt Firmware
Amd Ryzen 5 3600xt
Amd Ryzen 5 4500u Firmware
Amd Ryzen 5 4500u
Amd Ryzen 5 4600g Firmware
Amd Ryzen 5 4600g
Amd Ryzen 5 4600ge Firmware
Amd Ryzen 5 4600ge
Amd Ryzen 5 4600h Firmware
Amd Ryzen 5 4600h
Amd Ryzen 5 4600u Firmware
Amd Ryzen 5 4600u
Amd Ryzen 5 5500u Firmware
Amd Ryzen 5 5500u
Amd Ryzen 5 5560u Firmware
Amd Ryzen 5 5560u
Amd Ryzen 5 5600g Firmware
Amd Ryzen 5 5600g
Amd Ryzen 5 5600ge Firmware
Amd Ryzen 5 5600ge
Amd Ryzen 5 5600h Firmware
Amd Ryzen 5 5600h
Amd Ryzen 5 5600hs Firmware
Amd Ryzen 5 5600hs
Amd Ryzen 5 5600u Firmware
Amd Ryzen 5 5600u
Amd Ryzen 5 5600x Firmware
Amd Ryzen 5 5600x
Amd Ryzen 5 5625c Firmware
Amd Ryzen 5 5625c
Amd Ryzen 5 5625u Firmware
Amd Ryzen 5 5625u
Amd Ryzen 5 5700g Firmware
Amd Ryzen 5 5700g
Amd Ryzen 5 5700ge Firmware
Amd Ryzen 5 5700ge
Amd Ryzen 7 2700 Firmware
Amd Ryzen 7 2700
Amd Ryzen 7 2700u Firmware
Amd Ryzen 7 2700u
Amd Ryzen 7 2700x Firmware
Amd Ryzen 7 2700x
Amd Ryzen 7 2800h Firmware
Amd Ryzen 7 2800h
Amd Ryzen 7 3700u Firmware
Amd Ryzen 7 3700u
Amd Ryzen 7 3700x Firmware
Amd Ryzen 7 3700x
Amd Ryzen 7 3750h Firmware
Amd Ryzen 7 3750h
Amd Ryzen 7 3780u Firmware
Amd Ryzen 7 3780u
Amd Ryzen 7 3800x Firmware
Amd Ryzen 7 3800x
Amd Ryzen 7 3800xt Firmware
Amd Ryzen 7 3800xt
Amd Ryzen 7 4700g Firmware
Amd Ryzen 7 4700g
Amd Ryzen 7 4700ge Firmware
Amd Ryzen 7 4700ge
Amd Ryzen 7 4700u Firmware
Amd Ryzen 7 4700u
Amd Ryzen 7 4800h Firmware
Amd Ryzen 7 4800h
Amd Ryzen 7 4800u Firmware
Amd Ryzen 7 4800u
Amd Ryzen 7 5700g Firmware
Amd Ryzen 7 5700g
Amd Ryzen 7 5700ge Firmware
Amd Ryzen 7 5700ge
Amd Ryzen 7 5700u Firmware
Amd Ryzen 7 5700u
Amd Ryzen 7 5700x Firmware
Amd Ryzen 7 5700x
Amd Ryzen 7 5800h Firmware
Amd Ryzen 7 5800h
Amd Ryzen 7 5800hs Firmware
Amd Ryzen 7 5800hs
Amd Ryzen 7 5800u Firmware
Amd Ryzen 7 5800u
Amd Ryzen 7 5800x Firmware
Amd Ryzen 7 5800x
Amd Ryzen 7 5800x3d Firmware
Amd Ryzen 7 5800x3d
Amd Ryzen 7 5825c Firmware
Amd Ryzen 7 5825c
Amd Ryzen 7 5825u Firmware
Amd Ryzen 7 5825u
Amd Ryzen 9 3900x Firmware
Amd Ryzen 9 3900x
Amd Ryzen 9 3950x Firmware
Amd Ryzen 9 3950x
Amd Ryzen 9 4900h Firmware
Amd Ryzen 9 4900h
Amd Ryzen 9 4900hs Firmware
Amd Ryzen 9 4900hs
Amd Ryzen 9 5900hs Firmware
Amd Ryzen 9 5900hs
Amd Ryzen 9 5900hx Firmware
Amd Ryzen 9 5900hx
Amd Ryzen 9 5900x Firmware
Amd Ryzen 9 5900x
Amd Ryzen 9 5950x Firmware
Amd Ryzen 9 5950x
Amd Ryzen 9 5980hs Firmware
Amd Ryzen 9 5980hs
Amd Ryzen 9 5980hx Firmware
Amd Ryzen 9 5980hx
Amd Ryzen Threadripper 2920x Firmware
Amd Ryzen Threadripper 2920x
Amd Ryzen Threadripper 2950x Firmware
Amd Ryzen Threadripper 2950x
Amd Ryzen Threadripper 2970wx Firmware
Amd Ryzen Threadripper 2970wx
Amd Ryzen Threadripper 2990wx Firmware
Amd Ryzen Threadripper 2990wx
Amd Ryzen Threadripper 3960x Firmware
Amd Ryzen Threadripper 3960x
Amd Ryzen Threadripper 3970x Firmware
Amd Ryzen Threadripper 3970x
Amd Ryzen Threadripper 3990x Firmware
Amd Ryzen Threadripper 3990x
Amd Ryzen Threadripper Pro 3795wx Firmware
Amd Ryzen Threadripper Pro 3795wx
Amd Ryzen Threadripper Pro 3945wx Firmware
Amd Ryzen Threadripper Pro 3945wx
Amd Ryzen Threadripper Pro 3955wx Firmware
Amd Ryzen Threadripper Pro 3955wx
Amd Ryzen Threadripper Pro 3975wx Firmware
Amd Ryzen Threadripper Pro 3975wx
Amd Ryzen Threadripper Pro 3995wx Firmware
Amd Ryzen Threadripper Pro 3995wx
Amd Ryzen Threadripper Pro 5945wx Firmware
Amd Ryzen Threadripper Pro 5945wx
Amd Ryzen Threadripper Pro 5955wx Firmware
Amd Ryzen Threadripper Pro 5955wx
Amd Ryzen Threadripper Pro 5965wx Firmware
Amd Ryzen Threadripper Pro 5965wx
Amd Ryzen Threadripper Pro 5975wx Firmware
Amd Ryzen Threadripper Pro 5975wx
Amd Ryzen Threadripper Pro 5995wx Firmware
Amd Ryzen Threadripper Pro 5995wx

Never miss a vulnerability like this again

Sign up to SecAlerts for real-time vulnerability data matched to your software, aggregated from hundreds of sources.

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2024 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203