CVE-2021-33120

Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R) Processors may allow authenticated user to potentially enable information disclosure or cause denial of service via network access.

• SECURITY UPDATE: New microcode data file 2022-05-10
  • New microcodes: sig 0x00090672, pf_mask 0x03, 2022-03-03, rev 0x001f, size 212992 sig 0x00090675, pf_mask 0x03, 2022-03-03, rev 0x001f, size 212992 sig 0x000906a3, pf_mask 0x80, 2022-03-24, rev 0x041c, size 212992 sig 0x000906a4, pf_mask 0x80, 2022-03-24, rev 0x041c, size 212992 sig 0x000b06f2, pf_mask 0x03, 2022-03-03, rev 0x001f, size 212992 sig 0x000b06f5, pf_mask 0x03, 2022-03-03, rev 0x001f, size 212992
  • Updated microcodes: sig 0x00030679, pf_mask 0x0f, 2019-07-10, rev 0x090d, size 52224 sig 0x000306f2, pf_mask 0x6f, 2021-08-11, rev 0x0049, size 38912 sig 0x000306f4, pf_mask 0x80, 2021-05-24, rev 0x001a, size 23552 sig 0x000406e3, pf_mask 0xc0, 2021-11-12, rev 0x00f0, size 106496 sig 0x000406f1, pf_mask 0xef, 2021-05-19, rev 0xb000040, size 35840 sig 0x00050653, pf_mask 0x97, 2021-11-13, rev 0x100015d, size 34816 sig 0x00050654, pf_mask 0xb7, 2021-11-13, rev 0x2006d05, size 43008 sig 0x00050656, pf_mask 0xbf, 2021-12-10, rev 0x4003302, size 37888 sig 0x00050657, pf_mask 0xbf, 2021-12-10, rev 0x5003302, size 37888 sig 0x0005065b, pf_mask 0xbf, 2021-11-19, rev 0x7002501, size 29696 sig 0x00050663, pf_mask 0x10, 2021-06-12, rev 0x700001c, size 28672 sig 0x00050664, pf_mask 0x10, 2021-06-12, rev 0xf00001a, size 27648 sig 0x00050665, pf_mask 0x10, 2021-09-18, rev 0xe000014, size 23552 sig 0x000506c9, pf_mask 0x03, 2021-11-16, rev 0x0048, size 17408 sig 0x000506ca, pf_mask 0x03, 2021-11-16, rev 0x0028, size 16384 sig 0x000506e3, pf_mask 0x36, 2021-11-12, rev 0x00f0, size 109568 sig 0x000506f1, pf_mask 0x01, 2021-12-02, rev 0x0038, size 11264 sig 0x000606a6, pf_mask 0x87, 2022-03-30, rev 0xd000363, size 294912 sig 0x000706a1, pf_mask 0x01, 2021-11-22, rev 0x003a, size 75776 sig 0x000706a8, pf_mask 0x01, 2021-11-22, rev 0x001e, size 75776 sig 0x000706e5, pf_mask 0x80, 2022-03-09, rev 0x00b0, size 112640 sig 0x000806a1, pf_mask 0x10, 2022-03-26, rev 0x0031, size 34816 sig 0x000806c1, pf_mask 0x80, 2022-02-01, rev 0x00a4, size 109568 sig 0x000806c2, pf_mask 0xc2, 2021-12-07, rev 0x0026, size 97280 sig 0x000806d1, pf_mask 0xc2, 2021-12-07, rev 0x003e, size 102400 sig 0x000806e9, pf_mask 0x10, 2021-11-12, rev 0x00f0, size 105472 sig 0x000806e9, pf_mask 0xc0, 2021-11-12, rev 0x00f0, size 105472 sig 0x000806ea, pf_mask 0xc0, 2021-11-12, rev 0x00f0, size 105472 sig 0x000806eb, pf_mask 0xd0, 2021-11-15, rev 0x00f0, size 105472 sig 0x000806ec, pf_mask 0x94, 2021-11-17, rev 0x00f0, size 105472 sig 0x00090661, pf_mask 0x01, 2022-02-03, rev 0x0016, size 20480 sig 0x000906c0, pf_mask 0x01, 2022-02-19, rev 0x24000023, size 20480 sig 0x000906e9, pf_mask 0x2a, 2021-11-12, rev 0x00f0, size 108544 sig 0x000906ea, pf_mask 0x22, 2021-11-15, rev 0x00f0, size 104448 sig 0x000906eb, pf_mask 0x02, 2021-11-12, rev 0x00f0, size 105472 sig 0x000906ec, pf_mask 0x22, 2021-11-15, rev 0x00f0, size 104448 sig 0x000906ed, pf_mask 0x22, 2021-11-16, rev 0x00f0, size 104448 sig 0x000a0652, pf_mask 0x20, 2021-11-16, rev 0x00f0, size 96256 sig 0x000a0653, pf_mask 0x22, 2021-11-15, rev 0x00f0, size 97280 sig 0x000a0655, pf_mask 0x22, 2021-11-16, rev 0x00f0, size 96256 sig 0x000a0660, pf_mask 0x80, 2021-11-15, rev 0x00f0, size 96256 sig 0x000a0661, pf_mask 0x80, 2021-11-16, rev 0x00f0, size 96256 sig 0x000a0671, pf_mask 0x02, 2022-03-09, rev 0x0053, size 103424
  • Removed microcodes: sig 0x00080664, pf_mask 0x01, 2021-02-17, rev 0xb00000f, size 130048 sig 0x00080665, pf_mask 0x01, 2021-02-17, rev 0xb00000f, size 130048
  • CVE-2021-0146, INTEL-SA-00528
  • CVE-2021-0127, INTEL-SA-00532
  • CVE-2021-0145, INTEL-SA-00561 -…

Updated microcodes for Intel processors, fixing various functional issues, and at least the following security issues:

Insufficient control flow management in some Intel(R) Processors may allow an authenticated user to potentially enable a denial of service via local access (CVE-2021-0127 / SA-00532).

Improper initialization of shared resources in some Intel(R) Processors may allow an authenticated user to potentially enable information disclosure via local access (CVE-2021-0145 / SA-00561).

Hardware allows activation of test or debug logic at runtime for some Intel(R) processors which may allow an unauthenticated user to potentially enable escalation of privilege via physical access (CVE-2021-0146 / SA-00528).

Out of bounds read under complex microarchitectural condition in memory subsystem for some Intel Atom(R) Processors may allow authenticated user to potentially enable information disclosure or cause denial of service via network access (CVE-2021-33120 / SA-00589)

For info about the other fixes in this update, see the github reference.

This update for ucode-intel fixes the following issues:

Updated to Intel CPU Microcode 20220207 release.

• CVE-2021-0146: Fixed a potential security vulnerability in some Intel Processors may allow escalation of privilege (bsc#1192615)

• CVE-2021-0127: Intel Processor Breakpoint Control Flow (bsc#1195779)

• CVE-2021-0145: Fast store forward predictor - Cross Domain Training (bsc#1195780)

• CVE-2021-33120: Out of bounds read for some Intel Atom processors (bsc#1195781)

• Security updates for INTEL-SA-00528

• Security updates for INTEL-SA-00532

These are all security issues fixed in the ucode-intel-20220207-1.1 package on the GA media of openSUSE Tumbleweed.

This update for ucode-intel fixes the following issues:

Updated to Intel CPU Microcode 20220207 release.

• CVE-2021-0146: Fixed a potential security vulnerability in some Intel Processors may allow escalation of privilege (bsc#1192615)

• CVE-2021-0127: Intel Processor Breakpoint Control Flow (bsc#1195779)

• CVE-2021-0145: Fast store forward predictor - Cross Domain Training (bsc#1195780)

• CVE-2021-33120: Out of bounds read for some Intel Atom processors (bsc#1195781)

• Security updates for INTEL-SA-00528

• Security updates for INTEL-SA-00532

This update for ucode-intel fixes the following issues:

Updated to Intel CPU Microcode 20220207 release.

• CVE-2021-0146: Fixed a potential security vulnerability in some Intel Processors may allow escalation of privilege (bsc#1192615)

• CVE-2021-0127: Intel Processor Breakpoint Control Flow (bsc#1195779)

• CVE-2021-0145: Fast store forward predictor - Cross Domain Training (bsc#1195780)

• CVE-2021-33120: Out of bounds read for some Intel Atom processors (bsc#1195781)

• Security updates for INTEL-SA-00528

• Security updates for INTEL-SA-00532

This update for ucode-intel fixes the following issues:

Updated to Intel CPU Microcode 20220207 release.

• CVE-2021-0146: Fixed a potential security vulnerability in some Intel Processors may allow escalation of privilege (bsc#1192615)

• CVE-2021-0127: Intel Processor Breakpoint Control Flow (bsc#1195779)

• CVE-2021-0145: Fast store forward predictor - Cross Domain Training (bsc#1195780)

• CVE-2021-33120: Out of bounds read for some Intel Atom processors (bsc#1195781)

• Security updates for INTEL-SA-00528

• Security updates for INTEL-SA-00532

This update for ucode-intel fixes the following issues:

Updated to Intel CPU Microcode 20220207 release.

• CVE-2021-0146: Fixed a potential security vulnerability in some Intel Processors may allow escalation of privilege (bsc#1192615)

• CVE-2021-0127: Intel Processor Breakpoint Control Flow (bsc#1195779)

• CVE-2021-0145: Fast store forward predictor - Cross Domain Training (bsc#1195780)

• CVE-2021-33120: Out of bounds read for some Intel Atom processors (bsc#1195781)

• Security updates for INTEL-SA-00528

• Security updates for INTEL-SA-00532

This update for ucode-intel fixes the following issues:

Updated to Intel CPU Microcode 20220207 release.

• CVE-2021-0146: Fixed a potential security vulnerability in some Intel Processors may allow escalation of privilege (bsc#1192615)

• CVE-2021-0127: Intel Processor Breakpoint Control Flow (bsc#1195779)

• CVE-2021-0145: Fast store forward predictor - Cross Domain Training (bsc#1195780)

• CVE-2021-33120: Out of bounds read for some Intel Atom processors (bsc#1195781)

• Security updates for INTEL-SA-00528

• Security updates for INTEL-SA-00532

It was discovered that some Intel processors did not implement sufficient control flow management. A local attacker could use this to cause a denial of service. (CVE-2021-0127)

Joseph Nuzman discovered that some Intel processors did not properly initialise shared resources. A local attacker could use this to obtain sensitive information. (CVE-2021-0145)

Mark Ermolov, Dmitry Sklyarov and Maxim Goryachy discovered that some Intel processors did not prevent test and debug logic from being activated at runtime. A local attacker could use this to escalate privileges. (CVE-2021-0146)

It was discovered that some Intel processors did not properly restrict access in some situations. A local attacker could use this to obtain sensitive information. (CVE-2021-33117)

Brandon Miller discovered that some Intel processors did not properly restrict access in some situations. A local attacker could use this to obtain sensitive information or a remote attacker could use this to cause a denial of service. (CVE-2021-33120)

It was discovered that some Intel processors did not completely perform cleanup actions on multi-core shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123, CVE-2022-21127)

Alysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi discovered that some Intel processors improperly optimised security-critical code. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21151)

It was discovered that some Intel processors did not properly perform cleanup during specific special register write operations. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21166)

Joseph Nuzman discovered that some Intel processors did not properly initialise shared resources. A local attacker could use this to obtain sensitive information. (CVE-2021-0145)

Mark Ermolov, Dmitry Sklyarov and Maxim Goryachy discovered that some Intel processors did not prevent test and debug logic from being activated at runtime. A local attacker could use this to escalate privileges. (CVE-2021-0146)

It was discovered that some Intel processors did not implement sufficient control flow management. A local attacker could use this to cause a denial of service (system crash). (CVE-2021-0127)

It was discovered that some Intel processors did not completely perform cleanup actions on multi-core shared buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21123, CVE-2022-21127)

It was discovered that some Intel processors did not completely perform cleanup actions on microarchitectural fill buffers. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21125)

Alysa Milburn, Jason Brandt, Avishai Redelman and Nir Lavi discovered that some Intel processors improperly optimised security-critical code. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21151)

It was discovered that some Intel processors did not properly perform cleanup during specific special register write operations. A local attacker could possibly use this to expose sensitive information. (CVE-2022-21166)

It was discovered that some Intel processors did not properly restrict access in some situations. A local attacker could use this to obtain sensitive information. (CVE-2021-33117)

Brandon Miller discovered that some Intel processors did not properly restrict access in some situations. A local attacker could use this to obtain sensitive information or a remote attacker could use this to cause a denial of service (system crash). (CVE-2021-33120)