Advisory Published
CVE Published
Updated

CVE-2022-0002

First published: Tue Mar 08 2022(Updated: )

A flaw was found in hw. The Intra-mode BTI refers to a variant of Branch Target Injection aka SpectreV2 (BTI) where an indirect branch speculates to an aliased predictor entry for a different indirect branch in the same predictor mode, and a disclosure gadget at the predicted target transiently executes. These predictor entries may contain targets corresponding to the targets of an indirect near jump, indirect near call, and near return instructions, even if these branches were only transiently executed. The managed runtimes provide an attacker with the means to create the aliasing required for intra-mode BTI attacks.

Credit: secure@intel.com

Affected SoftwareAffected VersionHow to fix
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
Intel Atom C3308 Firmware
Intel Atom C3336 Firmware
Intel Atom C3338 Firmware
Intel Atom C3338
Intel Atom C3436L Firmware
Intel Atom C3508 Firmware
Intel Atom C3538 Firmware
Intel Atom C3558 Firmware
Intel Atom C3558R Firmware
Intel Atom C3558
Intel Atom C3708 Firmware
Intel Atom C3750 Firmware
Intel Atom C3758 Firmware
Intel Atom C3758 Firmware
Intel Atom C3808 Firmware
Intel Atom C3830 Firmware
Intel Atom C3850 Firmware
Intel Atom C3858 Firmware
Intel Atom C3950 Firmware
Intel Atom C3955 Firmware
Intel Atom C3958 Firmware
Intel Atom P5921B Firmware
Intel Atom P5931B
Intel Atom P5942B Firmware
Intel Atom P5962B Firmware
Intel Atom x5-A3930 Firmware for Windows
Intel Atom x5-A3940 Firmware
Intel Atom X7-a3950 Firmware
Intel Atom x5-A3960 Firmware
Intel Atom x5-E3930 firmware
Intel Atom x5-E3940 firmware
Intel Atom x5-Z8300 firmware
Intel Atom x5-Z8330
Intel Atom x5-Z8350
Intel Atom x5-Z8500 Firmware
Intel Atom x5-Z8550
Intel Atom X6200FE Firmware
Intel Atom x6211E Firmware
Intel Atom x6212RE Firmware
Intel Atom x6413E Firmware
Intel Atom x6425E
Intel Atom x6425RE Firmware
Intel Atom x6427FE Firmware
Intel Atom X7-a3950 Firmware
Intel Atom x7-Z8700 Firmware
Intel Atom x7-Z8750
Intel Celeron G5305U
Intel Celeron 6305
Intel Celeron 6305 Firmware
Intel Celeron 6600HE Firmware
Intel Celeron G5205U firmware
Intel Celeron G5305U
Intel Celeron G5900 Firmware
Intel Celeron G5900 Firmware
Intel Celeron G5905 Firmware
Intel Celeron G5905 Firmware
Intel Celeron G5920 Firmware
Intel Celeron G5925 Firmware
Intel Celeron G6900
Intel Celeron G6900T
Intel Celeron J3355E
Intel Celeron J3355E Firmware
Intel Celeron J3455 Firmware
Intel Celeron J3455
Intel Celeron J4005 Firmware
Intel Celeron J4025 Firmware
Intel Celeron J4105 Firmware
Intel Celeron J4125 Firmware
Intel Celeron J6413 Firmware
Intel Celeron N3350
Intel Celeron N3350E Firmware
Intel Celeron N3450 Firmware
Intel Celeron N4000C
Intel Celeron N4020 Firmware
Intel Celeron N4100 Firmware
Intel Celeron n4120 firmware
Intel Celeron N4500 Firmware
Intel Celeron N4504 Firmware
Intel Celeron N5100
Intel Celeron N5105 Firmware
Intel Celeron N6211
Intel Core i3-1000G1 Firmware
Intel Core i3-1000G4 Firmware
Intel Core i3-1005G1 firmware
Intel Core i3-10100F Firmware
Intel Core i3-10100F Firmware
Intel Core i3-10100T Firmware
Intel Core i3-10100TE Firmware
Intel Core i3-10105F
Intel Core i3-10105F Firmware
Intel Core i3-10105T Firmware
Intel Core i3-10110u
Intel Core i3-10300 firmware
Intel Core i3-10300T Firmware
Intel Core i3-10305
Intel Core i3-10305T
Intel Core i3-10320 Firmware
Intel Core i3-10325
Intel Core i3-11100HE Firmware
Intel Core i3-1110G4 Firmware
Intel Core i3-1115G4 Firmware
Intel Core i3-1115G4E Firmware
Intel Core i3-1115GRE Firmware
Intel Core i3-1120G4 Firmware
Intel Core i3-1125G4 Firmware
Intel Core i3-12100 Firmware
Intel Core i3-12100F Firmware
Intel Core i3-12100T Firmware
Intel Core i3-1220P Firmware
Intel Core i3-12300
Intel Core i3-12300T Firmware
Intel Core i3-L13G4 Firmware
Intel Core i5-10110Y firmware
Intel Core i5-10200H Firmware
Intel Core i5-10210U firmware
Intel Core i5-10210Y Firmware
Intel Core i5-10300H Firmware
Intel Core i5-1030G4 Firmware
Intel Core i5-1030NG7 Firmware
Intel Core i5-10310Y Firmware
Intel Core i5-1035G1
Intel Core i5-1035G4
Intel Core i5-1035G7 Firmware
Intel Core i5-10400F
Intel Core i5-10400
Intel Core i5-10400H firmware
Intel Core i5-10400T Firmware
Intel Core i5-10500E Firmware
Intel Core i5-10500T Firmware
Intel Core i5-10500TE Firmware
Intel Core i5-10505 Firmware
Intel Core i5-10600 Firmware
Intel Core i5-10600K Firmware
Intel Core i5-10600K Firmware
Intel Core i5-10600T Firmware
Intel Core i5-11260H Firmware
Intel Core i5-11300H Firmware
Intel Core i5-1130G7 Firmware
Intel Core i5-11320H Firmware
Intel Core i5-1135G7 Firmware
Intel Core i5-11400 Firmware
Intel Core i5-11400F Firmware
Intel Core i5-11400H Firmware
Intel Core i5-11400T Firmware
Intel Core i5-1140G7 Firmware
Intel Core i5-1145G7 Firmware
Intel Core i5-1145G7E Firmware
Intel Core i5-1145GRE Firmware
Intel Core i5-11500
Intel Core i5-11500H
Intel Core i5-11500T Firmware
Intel Core i5-1155G7 Firmware
Intel Core i5-11600 firmware
Intel Core i5-11600KF
Intel Core i5-11600KF Firmware
Intel Core i5-11600T Firmware
Intel Core i5-12400
Intel Core i5-12400F Firmware
Intel Core i5-12400T firmware
Intel Core i5-1240P Firmware
Intel Core i5-12450H Firmware
Intel Core i5-12500
Intel Core i5-12500H Firmware
Intel Core i5-12500T Firmware
Intel Core i5-1250P Firmware
Intel Core i5-12600
Intel Core i5-12600H Firmware
Intel Core i5-12600K Firmware
Intel Core i5-12600KF Firmware
Intel Core i5-12600T Firmware
Intel Core i5-8200Y
Intel Core i5-8210Y Firmware
Intel Core i5-8265U Firmware
Intel Core i5-8310Y Firmware
Intel Core i5-8365UE Firmware
Intel Core i5-9300H
Intel Core i5-9400
Intel Core i5-9400F
Intel Core i5-9400H Firmware
Intel Core i5-9600K
Intel Core i5-9600KF
Intel Core i5-L16G7 Firmware
Intel Core i7-10510U Firmware
Intel Core i7-10510Y Firmware
Intel Core i7-1060G7 Firmware
Intel Core i7-10610U Firmware
Intel Core i7-1065G7 Firmware
Intel Core i7-10700
Intel Core i7-10700E firmware
Intel Core i7-10700F Firmware
Intel Core i7-10700K Firmware
Intel Core i7-10700K Firmware
Intel Core i7-10700T Firmware
Intel Core i7-10700TE Firmware
Intel Core i7-10710U Firmware
Intel Core i7-10750H Firmware
Intel Core i7-10810U Firmware
Intel Core i7-10850H Firmware
Intel Core i7-10870H
Intel Core i7-10875H Firmware
Intel Core i7-11370H
Intel Core i7-11375H Firmware
Intel Core i7-11390H
Intel Core i7-1160G7 Firmware
Intel Core i7-1165G7 Firmware
Intel Core i7-11700 firmware
Intel Core i7-11700F Firmware
Intel Core i7-11700K Firmware
Intel Core i7-11700K Firmware
Intel Core i7-11700T Firmware
Intel Core i7-11800H Firmware
Intel Core i7-1180G7 Firmware
Intel Core i7-11850H Firmware
Intel Core i7-11850HE Firmware
Intel Core i7-1185G7 Firmware
Intel Core i7-1185G7E Firmware
Intel Core i7-1185GRE Firmware
Intel Core i7-1195G7 Firmware
Intel Core i7-1260P Firmware
Intel Core i7-12650H Firmware
Intel Core i7-12700E Firmware
Intel Core i7-12700F
Intel Core i7-12700H Firmware
Intel Core i7-12700K Firmware
Intel Core i7-12700K
Intel Core i7-12700T
Intel Core i7-1270p Firmware
Intel Core i7-12800H firmware
Intel Core i7-1280p Firmware
Intel Core i7-7640X Firmware
Intel Core i7-7740X
Intel Core i7-7800X firmware
Intel Core i7-7820X Firmware
Intel Core i7-8500Y Firmware
Intel Core i7-8565U firmware
Intel Core i7-8665U firmware
Intel Core i7-9700KF
Intel Core i7-9700KF Firmware
Intel Core i7-9750HF
Intel Core i7-9850HL
Intel Core i9-10850H Firmware
Intel Core i9-10850K Firmware
Intel Core i9-10885H Firmware
Intel Core i9-10900E firmware
Intel Core i9-10900E firmware
Intel Core i9-10900F Firmware
Intel Core i9-10900K Firmware
Intel Core i9-10900K
Intel Core i9-10900T Firmware
Intel Core i9-10900TE Firmware
Intel Core i9-10900X Firmware
Intel Core i9-10920X X-Series
Intel Core i9-10940X X-Series
Intel Core i9-10980HK
Intel Core i9-11900 firmware
Intel Core i9-11900F
Intel Core i9-11900H Firmware
Intel Core i9-11900 firmware
Intel Core i9-11900K
Intel Core i9-11900T Firmware
Intel Core i9-11950H Firmware
Intel Core i9-11980HK Firmware
Intel Core i9-12900
Intel Core i9-12900F
Intel Core i9-12900H firmware
Intel Core i9-12900HK Firmware
Intel Core i9-12900K Firmware
Intel Core i9-12900K Firmware
Intel Core i9-12900T Firmware
intel i9-7900x firmware
Intel Core i9-7920X Firmware
Intel Core i9-7940X Firmware
Intel Core i9-7960X Firmware
Intel Core i9-9800X Firmware
Intel Core i9-9820X Firmware
Intel Core i9-9880H firmware
Intel Core i9-9900K
Intel Core i9-9900KF
Intel Core i9-9900X Firmware
Intel i9-9920X Firmware
Intel Core i9-9940X Firmware
Intel Core i9-9960X X-series
Intel Core i9-9980HK
Intel Core m3-8100Y Firmware
Intel Pentium Gold 7505 Firmware
Intel Pentium Gold G6400 Firmware
Intel Pentium Gold G6400 Firmware
Intel Pentium Gold G6405 Firmware
Intel Pentium Gold G6405T Firmware
Intel Pentium Gold G6405U Firmware
Intel Pentium Gold G6500 Firmware
Intel Pentium Gold G6500T Firmware
Intel Pentium Gold G6505 Firmware
Intel Pentium Gold G6505 Firmware
Intel Pentium Gold G6600 Firmware
Intel Pentium Gold G6605
Intel Pentium Gold G7400
Intel Pentium Gold G7400
Intel Pentium J4205
Intel Pentium J6425 Firmware
Intel Pentium N4200 Firmware
Intel Pentium N4200E Firmware
Intel Pentium N6415 Firmware
Intel Pentium Silver J5005 Firmware
Intel Pentium Silver J5040 Firmware
Intel Pentium Silver N5000
Intel Pentium Silver N5030 Firmware
Intel Pentium Silver N6000 Firmware
Intel Pentium Silver N6005 Firmware
Intel Puma Firmware
Intel Xeon Bronze Processors
Intel Xeon Bronze Processors
Intel Xeon D1700 Firmware
Intel Xeon D2700 firmware
Intel Xeon E-2278G Firmware
Intel Xeon E-2278GE Firmware
Intel Xeon e-2278gel firmware
Intel Xeon e-2286m firmware
Intel Xeon E-2288G Firmware
Intel Xeon E-2314 Firmware
Intel Xeon E-2324G Firmware
Intel Xeon E-2334 Firmware
Intel Xeon E-2336 Firmware
Intel Xeon E-2356G
Intel Xeon E-2374G
Intel Xeon E-2378 Firmware
Intel Xeon E-2378G Firmware
Intel Xeon E-2386G Firmware
Intel Xeon E-2388G Firmware
Intel Xeon Gold 5215 Firmware
Intel Xeon 5215L
Intel Xeon Gold 5217 Firmware
Intel Xeon Gold 5218 Firmware
Intel Xeon 5218B
Intel Xeon Gold 5218
Intel Xeon Gold 5218
Intel Xeon Gold 5218
Intel Xeon Gold 5220
Intel Xeon Gold 5220R Firmware
Intel Xeon Gold 5220S Firmware
Intel Xeon Gold 5220T Firmware
Intel Xeon Gold 5222 Firmware
Intel Xeon Gold 5315y Firmware
Intel Xeon Gold 5317 Firmware
Intel Xeon Gold 5318h Firmware
Intel Xeon Gold 5318n Firmware
Intel Xeon Gold 5318s Firmware
Intel Xeon Gold 5318y Firmware
Intel Xeon Gold 5320 Firmware
Intel Xeon Gold 5320h Firmware
Intel Xeon Gold 5320t Firmware
Intel Xeon Gold 6208U Firmware
Intel Xeon Gold 6209U Firmware
Intel Xeon Gold 6210U Firmware
Intel Xeon Gold 6212U Firmware
Intel Xeon Gold 6222V Firmware
Intel Xeon Gold 6226 Firmware
Intel Xeon Gold 6226R Firmware
Intel Xeon Gold 6230 Firmware
Intel Xeon Gold 6230N
Intel Xeon Gold 6230R Firmware
Intel Xeon Gold 6230T Firmware
Intel Xeon Gold 6234 Firmware
Intel Xeon Gold 6238 Firmware
Intel Xeon Gold 6238L Firmware
Intel Xeon Gold 6238R Firmware
Intel Xeon Gold 6238T Firmware
Intel Xeon Gold 6240 Firmware
Intel Xeon Gold 6240
Intel Xeon Gold 6240R Firmware
Intel Xeon Gold 6240
Intel Xeon Gold 6242 Firmware
Intel Xeon Gold 6242R Firmware
Intel Xeon Gold 6244 Firmware
Intel Xeon Gold 6246 Firmware
Intel Xeon Gold 6246R Firmware
Intel Xeon Gold 6248 Firmware
Intel Xeon Gold 6248R Firmware
Intel Xeon Gold 6250 Firmware
Intel Xeon Gold 6250L Firmware
Intel Xeon Gold 6252 Firmware
Intel Xeon Gold 6252 Firmware
Intel Xeon Gold 6254 Firmware
Intel Xeon Gold 6256 Firmware
Intel Xeon Gold 6258R Firmware
Intel Xeon Gold 6262V Firmware
Intel Xeon Gold 6312U Firmware
Intel Xeon Gold 6314u Firmware
Intel Xeon Gold 6326 Firmware
Intel Xeon Gold 6328H Firmware
Intel Xeon Gold 6328HL
Intel Xeon Gold 6330 Firmware
Intel Xeon Gold 6330H Firmware
Intel Xeon Gold 6330n Firmware
Intel Xeon Gold 6334 Firmware
Intel Xeon Gold 6336Y
Intel Xeon Gold 6338
Intel Xeon Gold 6338n Firmware
Intel Xeon Gold 6338T
Intel Xeon Gold 6342 Firmware
Intel Xeon Gold 6346 Firmware
Intel Xeon Gold 6348 Firmware
Intel Xeon Gold 6348H
Intel Xeon Gold 6354 Firmware
Intel Xeon Platinum 8253 Firmware
Intel Xeon Platinum 8256 Firmware
Intel Xeon Platinum 8260Y
Intel Xeon Platinum 8260 Firmware
Intel Xeon Platinum 8260 Firmware
Intel Xeon Platinum 8268 Firmware
Intel Xeon Platinum 8270 Firmware
Intel Xeon Platinum 8276M Firmware
Intel Xeon Platinum 8276L Firmware
Intel Xeon Platinum 8280L Firmware
Intel Xeon Platinum 8280L Firmware
Intel Xeon Platinum 8351n
Intel Xeon Platinum 8352M
Intel Xeon Platinum 8352S
Intel Xeon Platinum 8352v
Intel Xeon Platinum 8352y Firmware
Intel Xeon Platinum 8353h Firmware
Intel Xeon Platinum 8354H
Intel Xeon Platinum 8356h Firmware
Intel Xeon Platinum 8358
Intel Xeon Platinum Processors
Intel Xeon Platinum 8360h Firmware
Intel Xeon Platinum 8360HL
Intel Xeon Platinum 8360Y
Intel Xeon Platinum Processors
Intel Xeon Platinum 8368
Intel Xeon Platinum 8368q Firmware
Intel Xeon Platinum 8376H Firmware
Intel Xeon Platinum 8376hl Firmware
Intel Xeon Platinum 8380
Intel Xeon Platinum 8380H Firmware
Intel Xeon Platinum 8380hl
Intel Xeon Platinum 9221 Firmware
Intel Xeon Platinum 9222
Intel Xeon Platinum 9242 Firmware
Intel Xeon 9282
Intel Xeon Silver 4208 Firmware
Intel Xeon Silver 4209T Firmware
Intel Xeon Silver 4210
Intel Xeon Silver 4210R Firmware
Intel Xeon Silver 4210T
Intel Xeon Silver 4214R firmware
Intel Xeon Silver 4214R firmware
Intel Xeon Silver 4214Y Firmware
Intel Xeon Silver 4215 Firmware
Intel Xeon Silver 4215 Firmware
Intel Xeon Silver 4216 Firmware
Intel Xeon Silver 4309Y
Intel Xeon Silver 4310
Intel Xeon Silver 4310t Firmware
Intel Xeon Silver 4314 Firmware
Intel Xeon Silver 4316
Intel Xeon W-10855 Firmware
Intel Xeon W-10855M Firmware
Intel Xeon W-10885M Firmware
Intel Xeon W-11155MLE Firmware
Intel Xeon W-11155MRE Firmware
Intel Xeon W-11555MLE Firmware
Intel Xeon W-11555MRE Firmware
Intel Xeon W-11855M Firmware
Intel Xeon W-11865MLD Firmware
Intel Xeon W-11865MRE Firmware
Intel Xeon W-11955M Firmware
Intel Xeon W-1250 Firmware
Intel Xeon W-1250P Firmware
Intel Xeon W-1270 Firmware
Intel Xeon W-1270P Firmware
Intel Xeon W-1290 Firmware
Intel Xeon W-1290E Firmware
Intel Xeon W-1290P Firmware
Intel Xeon W-1290T Firmware
Intel Xeon W-1290TE Firmware
Intel Xeon W-1300 Series Firmware
Intel Xeon W-1350 Firmware
Intel Xeon W-1350P Firmware
Intel Xeon W-1370P
Intel Xeon W-1370P Firmware
Intel Xeon W-1390 Firmware
Intel Xeon W-1390P Firmware
Intel Xeon W-1390T Firmware
Intel Xeon W-2223 Firmware
Intel Xeon W-2225 Firmware
Intel Xeon W-2235 Firmware
Intel Xeon W
Intel Xeon W-2255 Firmware
Intel Xeon W-2265 Firmware
Intel Xeon W-2275 Firmware
Intel Xeon W-2295 Firmware
Intel Xeon W-3223 Firmware
Intel Xeon W
Intel Xeon W-3235 Firmware
Intel Xeon W-3245 Firmware
Intel Xeon W-3245M Firmware
Intel Xeon W-3265
Intel Xeon W-3265M Firmware
Intel Xeon W-3275 Firmware
Intel Xeon W-3275M Firmware
Oracle Communications Cloud Native Core Binding Support Function=22.1.3
Oracle Communications Cloud Native Core Network Exposure Function=22.1.1
Oracle Communications Cloud Native Core Policy=22.2.0
debian/linux
5.10.223-1
5.10.234-1
6.1.129-1
6.1.128-1
6.12.20-1
6.12.21-1

Remedy

Disabling unprivileged eBPF effectively mitigates the known attack vectors for exploiting intra-mode branch injections attacks. The default Red Hat Enterprise Linux kernel prevents unprivileged users from being able to use eBPF by the kernel.unprivileged_bpf_disabled sysctl. For the Red Hat Enterprise Linux 7 the eBPF for unprivileged users is always disabled. For the Red Hat Enterprise Linux 8 to confirm the current state, inspect the sysctl with the command: # cat /proc/sys/kernel/unprivileged_bpf_disabled The setting of 1 would mean that unprivileged users can not use eBPF, mitigating the flaw. Continue to enable SMEP and Enhanced IBRS. This is the default setting on eligible CPUs.

Remedy

To mitigate the primary known attack vector, disable unprivileged eBPF: $ sudo sysctl kernel.unprivileged_bpf_disabled=1 or $ sudo sysctl kernel.unprivileged_bpf_disabled=2

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Parent vulnerabilities

(Appears in the following advisories)

Peer vulnerabilities

(Found alongside the following vulnerabilities)

Frequently Asked Questions

  • What is the severity of CVE-2022-0002?

    CVE-2022-0002 has been assigned a high severity rating due to its potential for exploiting branch target injection vulnerabilities.

  • How do I fix CVE-2022-0002?

    To mitigate CVE-2022-0002, update to the recommended Linux kernel versions, specifically kernel-rt version 0:4.18.0-372.9.1.rt7.166.el8 or kernel version 0:4.18.0-372.9.1.el8.

  • What are the affected systems for CVE-2022-0002?

    CVE-2022-0002 affects various Intel Atom, Celeron, and Core processors, as well as specific versions of the Linux kernel.

  • Is there a workaround for CVE-2022-0002?

    While the best resolution is to apply the kernel updates, minimizing exposure through robust firewall configurations can serve as a temporary workaround.

  • Are there any public exploits for CVE-2022-0002?

    As of now, there are no known public exploits specifically targeting CVE-2022-0002.

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