CVE-2020-10255
Severity Score
Exploit Likelihood
Affected Versions
Public Exploits
0Exploited in Wild
-Decision
Descriptions
Modern DRAM chips (DDR4 and LPDDR4 after 2015) are affected by a vulnerability in deployment of internal mitigations against RowHammer attacks known as Target Row Refresh (TRR), aka the TRRespass issue. To exploit this vulnerability, the attacker needs to create certain access patterns to trigger bit flips on affected memory modules, aka a Many-sided RowHammer attack. This means that, even when chips advertised as RowHammer-free are used, attackers may still be able to conduct privilege-escalation attacks against the kernel, conduct privilege-escalation attacks against the Sudo binary, and achieve cross-tenant virtual-machine access by corrupting RSA keys. The issue affects chips produced by SK Hynix, Micron, and Samsung. NOTE: tracking DRAM supply-chain issues is not straightforward because a single product model from a single vendor may use DRAM chips from different manufacturers.
Los chips DRAM modernos (DDR4 y LPDDR4 después de 2015) están afectados por una vulnerabilidad en la implementación de mitigaciones internas contra los ataques de tipo RowHammer conocido como Target Row Refresh (TRR), también se conoce como el problema TRRespass. Para explotar esta vulnerabilidad, el atacante requiere crear determinados patrones de acceso para activar cambios de bits sobre los módulos de memoria afectados, también se conoce como un ataque de tipo RowHammer de Muchos Flancos. Esto significa que, incluso cuando son usados chips anunciados como RowHammer-free, los atacantes aún pueden ser capaces de dirigir ataques de escalada de privilegios contra el kernel, conducir ataques de escalada de privilegios contra el binario Sudo y lograr el acceso a máquinas virtuales entre inquilinos al corromper claves RSA. El problema afecta a los chips producidos por SK Hynix, Micron y Samsung. NOTA: el seguimiento de los problemas de la cadena de suministro de DRAM no es sencillo porque un solo modelo de producto de un único proveedor puede usar chips DRAM de diferentes fabricantes.
CVSS Scores
SSVC
- Decision:-
Timeline
- 2020-03-09 CVE Reserved
- 2020-03-10 CVE Published
- 2024-08-04 CVE Updated
- 2024-10-24 EPSS Updated
- ---------- Exploited in Wild
- ---------- KEV Due Date
- ---------- First Exploit
CWE
- CWE-20: Improper Input Validation
CAPEC
References (6)
| URL | Tag | Source |
|---|---|---|
| https://download.vusec.net/papers/trrespass_sp20.pdf | Third Party Advisory | |
| https://github.com/vusec/trrespass | Product | |
| https://thehackernews.com/2020/03/rowhammer-vulnerability-ddr4-dram.html | Third Party Advisory | |
| https://twitter.com/antumbral/status/1237425959407513600 | Third Party Advisory | |
| https://twitter.com/vu5ec/status/1237399112590467072 | Third Party Advisory | |
| https://www.vusec.net/projects/trrespass | Third Party Advisory |
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Affected Vendors, Products, and Versions
| Vendor | Product | Version | Other | Status | ||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Vendor | Product | Version | Other | Status | <-- --> | Vendor | Product | Version | Other | Status |
| Micron Search vendor "Micron" | Ddr4 Sdram Search vendor "Micron" for product "Ddr4 Sdram" | - | - |
Affected
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| Micron Search vendor "Micron" | Lpddr4 Search vendor "Micron" for product "Lpddr4" | - | - |
Affected
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| Samsung Search vendor "Samsung" | Ddr4 Search vendor "Samsung" for product "Ddr4" | - | - |
Affected
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| Samsung Search vendor "Samsung" | Lpddr4 Search vendor "Samsung" for product "Lpddr4" | - | - |
Affected
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| Skhynix Search vendor "Skhynix" | Ddr4 Sdram Search vendor "Skhynix" for product "Ddr4 Sdram" | - | - |
Affected
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| Skhynix Search vendor "Skhynix" | Lpddr4 Search vendor "Skhynix" for product "Lpddr4" | - | - |
Affected
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