CVE-2019-1125 EXPLOIT
Patch early
A public exploit exists.
Description
An information disclosure vulnerability exists when certain central processing units (CPU) speculatively access memory. An attacker who successfully exploited the vulnerability could read privileged data across trust boundaries. To exploit this vulnerability, an attacker would have to log on to an affected system and run a specially crafted application. The vulnerability would not allow an attacker to elevate user rights directly, but it could be used to obtain information that could be used to try to compromise the affected system further. On January 3, 2018, Microsoft released an advisory and security updates related to a newly-discovered class of hardware vulnerabilities (known as Spectre) involving speculative execution side channels that affect AMD, ARM, and Intel CPUs to varying degrees. This vulnerability, released on August 6, 2019, is a variant of the Spectre Variant 1 speculative execution side channel vulnerability and has been assigned CVE-2019-1125. Microsoft released a security update on July 9, 2019 that addresses the vulnerability through a software change that mitigates how the CPU speculatively accesses memory. Note that this vulnerability does not require a microcode update from your device OEM.
Scoring
| CVSS | 5.6 (MEDIUM, v3.1) |
|---|---|
| Vector | CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N |
| EPSS | 4.52% — more likely to be exploited than 91% of all CVEs |
| On CISA KEV | no |
| Public exploit | yes |
| Published | 2019-09-03 |
| Last modified | 2026-06-17 |
Affected (15)
| Vendor | Product |
|---|---|
| microsoft | windows 10 |
| microsoft | windows 7 |
| microsoft | windows 8.1 |
| microsoft | windows rt 8.1 |
| microsoft | windows server 2008 |
| microsoft | windows server 2012 |
| microsoft | windows server 2016 |
| microsoft | windows server 2019 |
| redhat | enterprise linux desktop |
| redhat | enterprise linux server |
| redhat | enterprise linux server aus |
| redhat | enterprise linux server eus |
| redhat | enterprise linux server tus |
| redhat | enterprise linux workstation |
| redhat | virtualization host |
Public exploits
| Source | Title | Date |
|---|---|---|
| exploit-db | Microsoft Windows Kernel - Information Disclosure | 2020-01-27 |
References
- http://packetstormsecurity.com/files/156337/SWAPGS-Attack-Proof-Of-Concept.html
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200408-01-swapgs-en
- https://access.redhat.com/errata/RHBA-2019:2824
- https://access.redhat.com/errata/RHBA-2019:3248
- https://access.redhat.com/errata/RHSA-2019:2600
- https://access.redhat.com/errata/RHSA-2019:2609
- https://access.redhat.com/errata/RHSA-2019:2695
- https://access.redhat.com/errata/RHSA-2019:2696
- https://access.redhat.com/errata/RHSA-2019:2730
- https://access.redhat.com/errata/RHSA-2019:2899
- https://access.redhat.com/errata/RHSA-2019:2900
- https://access.redhat.com/errata/RHSA-2019:2975
- https://access.redhat.com/errata/RHSA-2019:3011
- https://access.redhat.com/errata/RHSA-2019:3220
- https://kc.mcafee.com/corporate/index?page=content&id=SB10297
- https://portal.msrc.microsoft.com/en-US/security-guidance/advisory/CVE-2019-1125
- https://www.synology.com/security/advisory/Synology_SA_19_32
- http://packetstormsecurity.com/files/156337/SWAPGS-Attack-Proof-Of-Concept.html
- http://www.huawei.com/en/psirt/security-advisories/huawei-sa-20200408-01-swapgs-en
- https://access.redhat.com/errata/RHBA-2019:2824
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