CVE-2019-1125
An information disclosure vulnerability exists when certain central processing units (CPU) speculatively access memory.
Does this matter?
Lower severity and a low EPSS score (4.52%). Track it; it rarely justifies an emergency change on its own.
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.
- CVSS 3.1
- 5.6 MEDIUMCVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 4.52% probability · 91th percentile
- CISA KEV
- Not listed
- Affected
- 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/virtualization host · 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
- Source
- secure@microsoft.com
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-2019:2600Third Party Advisory
- 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-2019-1125Patch, Vendor Advisory
- 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
- https://access.redhat.com/errata/RHBA-2019:3248
- https://access.redhat.com/errata/RHSA-2019:2600Third Party Advisory
- 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
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.