CVE-2018-12126, CVE-2018-12127, CVE-2018-12130, and CVE-2019-11091
On May 14, 2019, Intel® and other industry partners shared details and information about a new group of vulnerabilities collectively called Microarchitectural Data Sampling (MDS).
MDS (some media refer to it as “ZombieLoad”, “RIDL”, and “Fallout”) is a sub-class of previously disclosed speculative execution side channel vulnerabilities and is comprised of four related techniques. Under certain conditions, MDS provides a program the potential means to read data that program otherwise would not be able to see. MDS techniques are based on a sampling of data leaked from small structures within the CPU using a locally executed speculative execution side channel. Practical exploitation of MDS is a very complex undertaking. MDS does not, by itself, provide an attacker with a way to choose the data that is leaked.
VULNERABILITY DETAILS:
CVEID: CVE-2018-12126
Microarchitectural Store Buffer Data Sampling (MSBDS): Store buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CVEID: CVE-2018-12127
Microarchitectural Load Port Data Sampling (MLPDS): Load ports on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CVEID: CVE-2018-12130
Microarchitectural Fill Buffer Data Sampling (MFBDS): Fill buffers on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
CVEID: CVE-2019-11091
Microarchitectural Data Sampling Uncacheable Memory (MDSUM): Uncacheable memory on some microprocessors utilizing speculative execution may allow an authenticated user to potentially enable information disclosure via a side channel with local access.
IMPACT SCOPE:
All Intel Processors except selected 8th and 9th Generation Intel® Core™ processors, as well as the 2nd Generation Intel® Xeon® Scalable Processor Family.
For additional information, please visit the Intel Security Center.
RESOLUTION:
Acer is working closely with its processor and OS vendors to address certain microarchitectural data sampling (MDS) methods which can affect many modern microprocessor architectures. We recommend that customers limit their risk by following common security best practices and by applying the latest OS and firmware updates as soon as they become available.
Affected Models:
Microsoft is making available Intel-validated microcode updates for Windows 10 operating systems. These microcode updates will be released at a later date. The Microsoft hotfix will be used to update the microcode.
- Windows 10 Version 1607 for x64-based Systems (KB4494175)
- Windows 10 Version 1703 for x64-based Systems (KB4494453)
- Windows 10 Version 1709 for x64-based Systems (KB4494452)
- Windows 10 Version 1803 for x64-based Systems (KB4494451)
- Windows 10 Version 1809 for x64-based Systems (KB4494174)
- Windows 10 Version 1903 for x64-based Systems (KB4497165)
Desktop
| Model Name | |
| Shangqi A4660_72 | |
| Shangqi N4670_75 | |
| Shangqi X4670_75 | |
| Veriton A425_67 | |
| Veriton A450_67 | |
| Veriton A620_77 | |
| Veriton A650_77 | |
| Veriton A850_87 | |
| Veriton A880_71 | |
| Veriton A890_85 | |
| Veriton B650_75 | |
| Veriton B850_76 | |
| Veriton C650_66 | |
| Veriton C650_74 | |
| Veriton C650_82 | |
| Veriton D630_78 | |
| Veriton D650_75 | |
| Veriton D850_76 | |
| Veriton EN76G | |
| Veriton ES2710G | |
| Veriton ES2730G | |
| Veriton F4600G | |
| Veriton F6600G | |
| Veriton M2640G | |
| Veriton M4640G | |
| Veriton M4650G | |
| Veriton M4660G | |
| Veriton M6640G | |
| Veriton M6650G | |
| Veriton M6660G | |
| Veriton N4640G | |
| Veriton N4660G | |
| Veriton N6640G | |
| Veriton N6660G | |
| Veriton S2660G | |
| Veriton S4660G | |
| Veriton S6660G | |
| Veriton T650_80 | |
| Veriton T830_79 | |
| Veriton T850_81 | |
| Veriton X2640 | |
| Veriton X2640G | |
| Veriton X2660G | |
| Veriton X4640 | |
| Veriton X4650G | |
| Veriton X4660G | |
| Veriton X6640 | |
| Veriton X6650G | |
| Veriton X6660G | |
| Veriton Z4640G | |
| Veriton Z4660G | |
| Veriton Z4720G | |
| Veriton Z4720G | |
| Veriton Z4820G | |
| Veriton Z4860G | |
| Veriton Z6820G | |
| Veriton Z6860G | |
| Wenxiang A425_67 | |
| Wenxiang E560_60 | |
Notebook
| Model Name | |
| Aspire A111-31 | |
| Aspire A114-31 | |
| Aspire A114-32 | |
| Aspire A115-31 | |
| Aspire A311-31 | |
| Aspire A314-31 | |
| Aspire A314-32 | |
| Aspire A314-33 | |
| Aspire A315-31 | |
| Aspire A315-32 | |
| Aspire A315-33 | |
| Aspire A315-34 | |
| Aspire A315-51 | |
| Aspire A315-52 | |
| Aspire A315-53 | |
| Aspire A315-53G | |
| Aspire A315-54 | |
| Aspire A315-54G | |
| Aspire A315-54K | |
| Aspire A315-54KG | |
| Aspire A315-55 | |
| Aspire A315-55G | |
| Aspire A315-55K | |
| Aspire A315-55KG | |
| Aspire A317-32 | |
| Aspire A317-51 | |
| Aspire A317-51G | |
| Aspire A317-51K | |
| Aspire A317-51KG | |
| Aspire A514-51 | |
| Aspire A514-51G | |
| Aspire A514-51K | |
| Aspire A514-51KG | |
| Aspire A514-52 | |
| Aspire A514-52G | |
| Aspire A514-52K | |
| Aspire A514-52KG | |
| Aspire A515-51 | |
| Aspire A515-51G | |
| Aspire A515-51GE | |
| Aspire A515-52 | |
| Aspire A515-52G | |
| Aspire A515-52K | |
| Aspire A515-52KG | |
| Aspire A515-53 | |
| Aspire A515-53G | |
| Aspire A515-53K | |
| Aspire A515-53KG | |
| Aspire A515-54 | |
| Aspire A515-54G | |
| Aspire A515-54K | |
| Aspire A515-54KG | |
| Aspire A517-51 | |
| Aspire A517-51G | |
| Aspire A517-51GP | |
| Aspire A517-51P | |
| Aspire A615-51 | |
| Aspire A615-51G | |
| Aspire A715-71G | |
| Aspire A715-72G | |
| Aspire A715-73G | |
| Aspire A715-74G | |
| Aspire A717-71G | |
| Aspire A717-72G | |
| Aspire E5-475 | |
| Aspire E5-475G | |
| Aspire E5-475T | |
| Aspire E5-475TG | |
| Aspire E5-476 | |
| Aspire E5-476G | |
| Aspire E5-575 | |
| Aspire E5-575G | |
| Aspire E5-575T | |
| Aspire E5-575TG | |
| Aspire E5-576 | |
| Aspire E5-576G | |
| Aspire E5-576T | |
| Aspire E5-576TG | |
| Aspire E5-774 | |
| Aspire E5-774G | |
| Aspire ES1-132 | |
| Aspire ES1-332 | |
| Aspire ES1-432 | |
| Aspire ES1-433 | |
| Aspire ES1-433G | |
| Aspire ES1-532G | |
| Aspire ES1-533 | |
| Aspire ES1-732 | |
| Aspire F5-573 | |
| Aspire F5-573G | |
| Aspire F5-573T | |
| Aspire F5-771 | |
| Aspire F5-771G | |
| Aspire K40-10 | |
| Aspire K50-20 | |
| Aspire K50-30 | |
| Aspire R5-371T | |
| Aspire R5-571T | |
| Aspire R5-571TG | |
| Aspire S5-371 | |
| Aspire S5-371T | |
| Aspire T6000 | |
| Aspire T7000 | |
| Aspire VN7-593G | |
| Aspire VN7-593G | |
| Aspire VN7-593G- | |
| Aspire VN7-793G | |
| Aspire VX5-591G | |
| ConceptD CN515-51 | |
| Easynote ENLG81AP | |
| Easynote ENTE69AP | |
| Easynote ENTE70BH | |
| Easynote ENTE69SK | |
| Extensa EX2530 | |
| Extensa EX215-31 | |
| Extensa EX215-51K | |
| Extensa EX215-51KG | |
| Extensa EX2540 | |
| Extensa EX215-51 | |
| Extensa EX215-51G | |
| Gateway NE533 | |
| Gateway GW312-31 | |
| Gateway NE571 | |
| Gateway GW1-011 | |
| Gateway NE574 | |
| Gateway NE527 | |
| Gateway NE575 | |
| Nitro AN715-51 | |
| Nitro AN515-52 | |
| Nitro AN-515-53 | |
| Nitro AN515-54 | |
| Nitro AN517-51 | |
| Nitro NP515-51 | |
| Nitro AN515-31 | |
| Nitro AN515-51 | |
| One L1410 | |
| One S1003 | |
| One S1003P | |
| Predator PH317-53 | |
| Predator PH517-51 | |
| Predator PH315-52 | |
| Predator PT515-51 | |
| Predator PH717-71 | |
| Predator PT917-71 | |
| Predator PH317-52 | |
| Predator PH315-51 | |
| Predator GX21-71 | |
| Predator PT715-51 | |
| Predator PH317-51 | |
| Predator G3-571 | |
| Predator G3-572 | |
| Predator G3-573 | |
| Predator GX-792 | |
| Predator G5-793 | |
| Predator G9-793 | |
| Predator G9-593 | |
| Predator GX-791 | |
| Spin SP111-32N | |
| Spin SP113-31 | |
| Spin SP111-31 | |
| Spin SP111-34N | |
| Spin SP111-33 | |
| Spin SP515-51GN | |
| Spin SP714-51 | |
| Spin SP314-51 | |
| Spin SP513-52N | |
| Spin SP513-51 | |
| Spin SP315-51 | |
| Spin SP514-51GN | |
| Spin SP314-53 | |
| Spin SP314-52 | |
| Spin SP513-53N | |
| Spin SP111-31N | |
| Spin SP515-51N | |
| Spin SP513-52NP | |
| Spin SP513-51N | |
| Spin SP514-51N | |
| Spin SP314-53G | |
| Spin SP314-53GN | |
| Spin SP314-53N | |
| Swift SF714-52T | |
| Swift SF113-31 | |
| Swift SF114-31 | |
| Swift SF114-32 | |
| Swift SF314-57 | |
| Swift SF514-54GT | |
| Swift SF714-51T | |
| Swift SF713-51 | |
| Swift SF315-51 | |
| Swift SF514-52T | |
| Swift SF315-52 | |
| Swift SF313-51 | |
| Swift S40-10 | |
| Swift S30-20 | |
| Swift S30-10 | |
| Swift SF514-51 | |
| Swift SF514-53T | |
| Swift SF515-51T | |
| Swift SF314-55 | |
| Swift S40-20 | |
| Swift SF314-57G | |
| Swift SF514-54T | |
| Swift SF315-51G | |
| Swift SF514-52TP | |
| Swift SF315-52G | |
| Swift SF314-54 | |
| Swift SF314-52 | |
| Swift SF314-51 | |
| Swift SF314-55G | |
| Swift SF314-56 | |
| Swift SF314-54G | |
| Swift SF314-52G | |
| Swift SF314-56G | |
| Swift SF314-53 | |
| Swift SF314-53G | |
| Switch SW312-31 | |
| Switch SW5-017 | |
| Switch SW512-52 | |
| Switch SW713-51GN | |
| Switch A20-10 | |
| Switch SW312-31P | |
| Switch SW5-017P | |
| Switch SW512-52P | |
| Switch SW713-51GNP | |
| Switch SA5-271 | |
| Switch SA5-271P | |
| Switch One SW1-011 | |
| TravelMate TMP214-51G | |
| TravelMate TMP215-51G | |
| TravelMate TMP2410-G2-MG | |
| TravelMate TMP2410-M | |
| TravelMate TMP2410-MG | |
| TravelMate TMP249-G2-MG | |
| TravelMate TMP249-G3-M | |
| TravelMate TMP249-G3-MG | |
| TravelMate TMP249-M | |
| TravelMate TMP249-MG | |
| TravelMate TMP2510-M | |
| TravelMate TMP2510-MG | |
| TravelMate TMP259-G2-MG | |
| TravelMate TMP259-M | |
| TravelMate TMP259-MG | |
| TravelMate TMP40-51 | |
| TravelMate TMP449-G2-MG | |
| TravelMate TMP449-G3-M | |
| TravelMate TMP449-G3-MG | |
| TravelMate TMP449-M | |
| TravelMate TMP449-MG | |
| TravelMate TMP459-G2-MG | |
| TravelMate TMP459-M | |
| TravelMate TMP459-MG | |
| TravelMate TMP50-51 | |
| TravelMate TMP614-51G | |
| TravelMate TMP614-51T | |
| TravelMate TMP614-51TG | |
| TravelMate TMP648-G2-MG | |
| TravelMate TMP648-G3-M | |
| TravelMate TMP658-G2-MG | |
| TravelMate TMP658-G3-M | |
| TravelMate TMP658-M | |
| TravelMate TMP658-MG | |
| TravelMate TMTX40-G1 | |
| TravelMate TMTX40-G2 | |
| TravelMate TMTX40-G3-M | |
| TravelMate TMTX40-G3-MG | |
| TravelMate TMTX420-G2-M | |
| TravelMate TMTX420-G2-MG | |
| TravelMate TMTX420-MG | |
| TravelMate TMTX50-G1 | |
| TravelMate TMTX50-G2 | |
| TravelMate TMTX520-G2-M | |
| TravelMate TMTX520-G2-MG | |
| TravelMate TMTX520-MG | |
| TravelMate TMX314-51-MG | |
| TravelMate TMX3310-M | |
| TravelMate TMX3310-MG | |
| TravelMate TMX349-M | |
| TravelMate TMX40-51-M | |
| TravelMate TMX40-51-MG | |
| TravelMate TMX40-52-M | |
| TravelMate TMX40-52-MG | |
| TravelMate TMX514-51 | |
| TravelMate TMX514-51T | |
| TravelMate TMZ5-502MT-G | |
| TravelMate TMZ5-502MT-U | |
| TravelMate Spin TMB118-R | |
| TravelMate Spin TMB118-RN | |
| TravelMate Spin TMB118-G2-R | |
| TravelMate Spin TMB118-G2-RN | |
MORE INFORMATION:
For additional information, please read the following security advisories:
Disclaimer:
THE ABOVE INFORMATION IS PROVIDED "AS IS" IN CONNECTION WITH ACER AND INTEL® PRODUCTS. YOUR USE OF THE INFORMATION OR MATERIALS LINKED FROM THIS PAGE IS AT YOUR OWN RISK. ACER RESERVES THE RIGHT TO CHANGE OR UPDATE THIS PAGE AT ANY TIME.
